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2-硝基苯甲醚 | 91-23-6

中文名称
2-硝基苯甲醚
中文别名
邻硝基茴香醚,邻硝基苯甲醚,邻甲氧基硝基苯,1-甲氧基-2-硝基苯;鄰硝苯基甲醚;邻甲氧基硝基苯;1-甲氧基-2-硝基苯;邻硝基苯甲醚;邻硝基茴香醚
英文名称
2-Nitroanisole
英文别名
1-Methoxy-2-nitrobenzene;o-nitroanisole
2-硝基苯甲醚化学式
CAS
91-23-6
化学式
C7H7NO3
mdl
MFCD00007096
分子量
153.137
InChiKey
CFBYEGUGFPZCNF-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    9-12 °C (lit.)
  • 沸点:
    273 °C (lit.)
  • 密度:
    1.254 g/mL at 25 °C (lit.)
  • 闪点:
    >230 °F
  • 溶解度:
    酒精:可溶(lit.)
  • 介电常数:
    43.0
  • 物理描述:
    COLOURLESS-TO-YELLOW-RED LIQUID.
  • 颜色/状态:
    Colorless to yellowish liquid
  • 蒸汽密度:
    Relative vapor density (air = 1): 5.29
  • 蒸汽压力:
    3.6X10-3 mm Hg at 25 °C
  • 自燃温度:
    464 °C
  • 分解:
    When heated to decomposition it emits toxic fumes of /nitrogen oxide/.
  • 粘度:
    Liquid viscosity = 3.9768X10-3 at melting point
  • 表面张力:
    4.7471X10-2 N/m at melting point
  • 折光率:
    Index of refraction = 1.5161 at 20 °C/D
  • 保留指数:
    1296
  • 稳定性/保质期:
    1. 化学性质:与氨加压加热时生成邻硝基苯胺;与水合肼加压加热生成1-羟基苯三唑。 2. 稳定性:稳定。[14] 3. 禁配物:强氧化剂、强还原剂、强酸、强碱。[15] 4. 避免接触的条件:受热。[16] 5. 聚合危害:不聚合。[17] 6. 分解产物:氮氧化物。[18]

计算性质

  • 辛醇/水分配系数(LogP):
    1.7
  • 重原子数:
    11
  • 可旋转键数:
    1
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.142
  • 拓扑面积:
    55
  • 氢给体数:
    0
  • 氢受体数:
    3

ADMET

代谢
...研究了人类、兔和鼠细胞色素P450(P450)对强效啮齿动物致癌物2-硝基茴香醚(2-NA)的解毒代谢...采用高效液相色谱(HPLC)与紫外检测来分离和鉴定由肝微粒体、人重组P450和纯化的鼠和兔P450形成的2-NA代谢物。2-NA的O-去甲基代谢物2-硝基酚(2-NP)以及这种代谢物的两个氧化产物[2,5-二羟基硝基苯(2,5-DNB)和2,6-二羟基硝基苯(2,6-DNB)]由所研究物种的微粒体和P450生成,但水平不同。所有代谢物都是解毒产物。2-NP是兔和鼠微粒体生成的主要代谢物,但2,5-DNB是人类微粒体的主要产物。使用人重组P450和纯化的啮齿动物P450,我们发现人P450 2E1、1A1和2B6以及同源动物P450是最有效的将2-NA氧化为2-NP的酶,而P450 2E1和1A1在形成2,5-DNB和2,6-DNB方面最有效。在人类肝微粒体中,2-NA主要被P4502E1氧化。2-NA及其还原代谢物邻茴香胺诱导了大鼠肝和肾P450 1A1/2和NAD(P)H:醌氧化还原酶(NQO1),从而改变了它们自己的解毒和/或活化途径。数据表明同源P450参与了所有物种对2-NA的氧化,并表明大鼠和兔可能作为模拟人类2-NA氧化的合适模型。
... The detoxifying metabolism of a potent rodent carcinogen, 2-nitroanisole (2-NA) by human, rabbit and rat cytochromes P450 (P450) was investigated ... HPLC with UV detection was employed for the separation and characterization of 2-NA metabolites formed by hepatic microsomes, human recombinant P450s and purified rat and rabbit P450s. An O-demethylated metabolite of 2-NA, 2-nitrophenol (2-NP), and two oxidation products of this metabolite [2,5-dihydroxynitrobenzene (2,5-DNB) and 2,6-dihydroxynitrobenzene (2,6-DNB)] were generated by microsomes and P450s from the species investigated, but at different levels. All the metabolites are detoxication products. 2-NP is the major metabolite generated by rabbit and rat microsomes, but 2,5-DNB is the predominant product in human microsomes. Using human recombinant P450s and purified rodent P450s, we found that human P450 2E1, 1A1 and 2B6 as well as orthologous animal P450s were the most efficient enzymes oxidizing 2-NA to 2-NP, while P450 2E1 and 1A1 were the most effective in the formation of 2,5-DNB and 2,6-DNB. In human hepatic microsomes, 2-NA was oxidized mainly by P4502E1. 2-NA and its reductive metabolite o-anisidine induced rat hepatic and renal P450 1A1/2 and NAD(P)H:quinone oxidoreductase (NQO1), thus modifying their own detoxication and/or activation pathways. The data demonstrated the participation of orthologous P450s in 2-NA oxidation by all species and indicated that the rat and rabbit might serve as suitable models to mimic 2-NA oxidation in /humans/.
来源:Hazardous Substances Data Bank (HSDB)
代谢
2-硝基苯酚(2-NP)是2-硝基茴香醚(2-NA)的主要解毒代谢物。本研究旨在表征大鼠肝微粒体中含有的细胞色素P450(CYPs)对2-NP代谢的产物,并确定参与这一过程的主要CYP酶。大鼠肝微粒体会将2-NP氧化为其羟基代谢物,2,5-二羟基硝基苯(2,5-DNB)。在使用大鼠肝微粒体的实验中,没有发现导致形成邻氨基酚的硝基还原代谢。使用选择性CYP抑制剂和经特定CYP诱导剂预处理的大鼠肝微粒体来表征在大鼠肝脏中氧化2-NP的CYPs。根据这些研究,我们将大鼠肝脏中大部分2-NP的氧化归因于CYP2E1和3A,其次是CYP2D和2C。在本研究中测试的重组大鼠CYP酶中,CYP2E1和2C11是最有效的氧化2-NP的酶。大鼠CYP2E1对2-NP的氧化表现出米氏动力学,其Km值为0.35 mM。本研究的结果表明,CYP2E1是大鼠肝脏中氧化这种化合物的主要酶。
2-Nitrophenol (2-NP) is the major detoxification metabolite of ... 2-nitroanisole (2-NA). Characterization of the products of 2-NP metabolism by rat hepatic microsomes containing cytochromes P450 (CYPs) and identification of the major CYP enzymes participating in this process are aims of this study ... Rat hepatic microsomes oxidize 2-NP to its hydroxylated metabolite, 2,5-dihydroxynitrobenzene (2,5-DNB). No nitroreductive metabolism leading to the formation of o-aminophenol was evident when using rat hepatic microsomes. Selective CYP inhibitors and hepatic microsomes of rats pre-treated with specific CYP inducers were used to characterize CYPs oxidizing 2-NP in rat livers. Based on these studies, we attribute most of 2-NP oxidation in rat liver to CYP2E1 and 3A, followed by CYP2D and 2C. Among recombinant rat CYP enzymes tested in this study, CYP2E1 and 2C11 were the most effective enzymes oxidizing 2-NP. Oxidation of 2-NP by rat CYP2E1 exhibits the Michaelis-Menten kinetics, having the Km value of 0.35 mM. The results found in this study ... demonstrate that CYP2E1 is the major enzyme oxidizing this compound in rat liver.
来源:Hazardous Substances Data Bank (HSDB)
代谢
... 不同物种(包括人类)的肝脏微粒体样本对2-硝基茴香醚(2-NA)的代谢能力进行了比较... 人类肝脏微粒体产生了2-NA代谢物的模式,复制了大鼠和家兔肝脏微粒体形成的模式。产生了2-NA的一个O-去甲基代谢物(2-硝基酚)和这个代谢物的两个环氧化衍生物(2,6-二羟基硝基苯和2,X-二羟基硝基苯)。在任何物种的肝脏微粒体中都没有明显的硝基还原代谢,形成邻茴香胺。同样,使用氚标记的2-NA或(32)P后标记技术测量的2-NA代谢物(s)的DNA结合在微粒体中也是无法检测的。因此,肝脏微粒体P450酶参与这个环境致癌物的解毒反应。使用特定P450诱导剂预处理的家兔肝脏微粒体,表达重组人P450酶的杆状病毒转染昆虫细胞微粒体,纯化的P450酶和选择性P450抑制剂,作者发现人类重组P450 2E1、1A1和2B6以及同源啮齿动物P450酶是最有效的代谢2-NA的酶。研究了特定P450酶在人肝脏微粒体中2-NA代谢中的作用,通过将特定P450依赖的反应与同一微粒体形成的2-NA代谢物水平相关联,以及检查特定P450酶抑制剂对2-NA代谢的影响。根据这些研究,... 人微粒体中的大部分2-NA氧化代谢归因于P450 2E1。这些结果... 明确表明P450 2E1是人类肝脏中氧化这种致癌物的主要酶。
... The ability of hepatic microsomal samples from different species including human to metabolize 2-nitroanisole (2-NA) /was compared/ ... Human hepatic microsomes generated a pattern of 2-NA metabolites, reproducing that formed by hepatic microsomes of rats and rabbits. An O-demethylated metabolite of 2-NA (2-nitrophenol) and two ring-oxidized derivatives of this metabolite (2,6-dihydroxynitrobenzene and 2,X-dihydroxynitrobenzene) were produced. No nitroreductive metabolism leading to the formation of o-anisidine was evident with hepatic microsomes of any species. Likewise, no DNA binding of 2-NA metabolite(s) measured with either tritium-labeled 2-NA or the (32)P-postlabeling technique was detectable in microsomes. Therefore, hepatic microsomal P450 enzymes participate in the detoxication reactions of this environmental carcinogen. Using hepatic microsomes of rabbits pretreated with specific P450 inducers, microsomes from Baculovirus transfected insect cells expressing recombinant human P450 enzymes, purified P450 enzymes, and selective P450 inhibitors, /the authors/ found that human recombinant P450 2E1, 1A1, and 2B6, as well as orthologous rodent P450 enzymes, are the most efficient enzymes metabolizing 2-NA. The role of specific P450 enzymes in the metabolism of 2-NA in human hepatic microsomes was investigated by correlating specific P450-dependent reactions with the levels of 2-NA metabolites formed by the same microsomes and by examining the effects of specific inhibitors of P450 enzymes on 2-NA metabolism. On the basis of these studies, ... most of the 2-NA oxidation metabolism in human microsomes /was attributed/ to P450 2E1. These results ... clearly demonstrate that P450 2E1 is the major human enzyme oxidizing this carcinogen in human liver.
来源:Hazardous Substances Data Bank (HSDB)
代谢
在给予5毫克/千克体重或50毫克/千克体重(14)C标记的邻硝基茴香醚p.o.(雄性F344大鼠)后,7天后的尿液中代谢物包括63%的邻硝基苯磺酸盐、11%的邻硝基苯葡萄糖苷酸、1.5%的邻硝基酚、0.6%的邻茴香胺。/从德语翻译/
After receiving either 5 mg/kg bw or 50 mg/kg bw (14)C-labeled o-nitroanisole p.o. (male F344 rats), metabolites in the urine after 7 days included 63% o-nitrophenylsulfate, 11% o-nitrophenylglucuronide, 1.5% o-nitrophenol, 0.6% o-anisidine. /Translated from German/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌性证据
评估:对于2-硝基茴香醚是否对人体具有致癌性,人类的证据不足。对于2-硝基茴香醚是否对实验动物具有致癌性,证据充分。总体评估:2-硝基茴香醚可能对人类具有致癌性(2B组)。
Evaluation: There is inadequate evidence in humans for the carcinogenicity of 2-nitroanisole. There is sufficient evidence in experimental animals for the carcinogenicity of 2-nitroanisole. Overall evaluation: 2-Nitroanisole is possibly carcinogenic to humans (Group 2B).
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌性证据
o-硝基茴香醚:合理预期为人类致癌物。
o-Nitroanisole: reasonably anticipated to be a human carcinogen.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 致癌物分类
国际癌症研究机构致癌物:邻硝基苯甲醚
IARC Carcinogenic Agent:ortho-Nitroanisole
来源:International Agency for Research on Cancer (IARC)
毒理性
  • 致癌物分类
国际癌症研究机构(IARC)致癌物分类:2A组:可能对人类致癌
IARC Carcinogenic Classes:Group 2A: Probably carcinogenic to humans
来源:International Agency for Research on Cancer (IARC)
毒理性
  • 致癌物分类
国际癌症研究机构专著:第65卷:(1996年)印刷工艺和印刷油墨,炭黑及一些硝基化合物
IARC Monographs:Volume 65: (1996) Printing Processes and Printing Inks, Carbon Black and Some Nitro Compounds
来源:International Agency for Research on Cancer (IARC)
吸收、分配和排泄
F344雄性大鼠通过静脉注射每千克体重25毫克的(14)C-标记的邻硝基茴香醚。给药后15分钟达到最大组织浓度。消除过程呈现双相性。第一个消除相的半衰期为1-2小时,第二个消除相时间更长,且与组织有关。 /从德语翻译/
Male F344 rats were injected iv with 25 mg/kg bw (14)C-labeled o-nitroanisole. 15 min post-administration maximum tissue concentration was reached. Elimination bi-phasic. The first elimination phase had a half-life of 1-2 hr, the second elimination phase was longer and was tissue-dependent. /Translated from German/
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
F344雄性大鼠口服4或50毫克/千克体重的(14)C-标记的邻硝基茴香醚。在24小时内,5毫克/千克体重剂量的73%和50毫克/千克体重剂量的69%通过尿液排出。在7天内,71-78%通过尿液排出,7%通过粪便排出。/从德语翻译/
Male F344 rats received 4 or 50 mg/kg bw (14)C-labeled o-nitroanisole p.o. Within 24 hr 73% of the 5 mg/kg bw dose and 69% of the 50 mg/kg bw dose was eliminated in the urine. Within 7 days 71-78% in the urine and 7% in the feces was eliminated. /Translated from German/
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
人体可以通过皮肤吸收。在皮肤研究中,可以在尿液中检测到该物质的增加。通过水解裂解形成代谢物,是邻硝基酚的衍生物。
Skin absorption in humans is possible. An increase in the substance can be detected in the urine in skin studies. Metabolites are formed by hydrolytic cleavage and are derivatives of o-nitrophenol. /Translated from German/
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
以25 mg/kg体重的剂量静脉注射(14C)2-硝基苯甲醚后,收集了从15分钟到七天不等的血液、组织和排泄物。2-硝基苯甲醚衍生的14C在组织中的分布(肌肉,20%;皮肤,10%;脂肪,6.8%;血液,6.5%;肝脏,4.8%;血浆,3.1%;肾脏,2.8%;小肠,1.9%)在给药后迅速发生。所有组织的峰值浓度在15分钟内达到。尿液和粪便的消除与口服给药后发现的相似(尿液,7天内达到86%;粪便,7天内达到9%)。胆汁排泄与粪便消除相似,表明没有肠肝循环。在腹腔注射25 mg/kg体重2-硝基苯甲醚后24小时内收集的尿液图谱与口服给药后观察到的相似(63% 2-硝基苯酚硫酸盐,11% 2-硝基苯酚葡萄糖苷酸,1.5% 2-硝基苯酚和0.6% 邻甲苯胺)。
... An intravenous dose of 25 mg/kg bw was used for pharmacokinetic studies. Following a 25 mg/kg bw intravenous injection of (14C)2-nitroanisole, blood, tissues and excreta were collected at times ranging from 15 min to seven days. The distribution of 2-nitroanisole derived 14C to tissues (muscle, 20%; skin, 10%; fat, 6.8%; blood, 6.5%; liver, 4.8%; plasma, 3.1 %; kidney, 2.8%; and small intestine, 1.9%) occurred rapidly following administration. Peak tissue concentrations were reached in all tissues within 15 min. Urinary and fecal elimination were similar to that found after oral administration (urine, 86% by seven days; feces, 9% by seven days). ... Biliary excretion was similar to fecal elimination, indicating a lack of enterohepatic recirculation. Urine collected for 24 hr after intraperitoneal administration of 25 mg/kg bw 2-nitroanisole had a profile similar to that observed after oral administration (63% 2-nitrophenyl sulfate, 11 % 2-nitrophenyl glucuronide, 1.5% 2-nitrophenol and 0.6% ortho-anisidine).
来源:Hazardous Substances Data Bank (HSDB)

安全信息

  • TSCA:
    Yes
  • 危险等级:
    6.1
  • 安全说明:
    S45,S53
  • 危险品运输编号:
    UN 2730 6.1/PG 3
  • WGK Germany:
    3
  • 海关编码:
    29093090
  • 危险类别:
    6.1
  • 危险品标志:
    T
  • 危险类别码:
    R22,R45
  • RTECS号:
    BZ8790000
  • 包装等级:
    III
  • 储存条件:
    储存注意事项: - 储存于阴凉、通风的库房。 - 远离火种、热源,保持容器密封。 - 应与氧化剂、还原剂、酸类、碱类、食用化学品分开存放,切忌混储。 - 配备相应品种和数量的消防器材。 - 储区应备有泄漏应急处理设备和合适的收容材料。

SDS

SDS:1a32485fc63f8c0a3348a9c6f50e6116
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第一部分:化学品名称

制备方法与用途

化学性质
这是一种无色至浅黄色的易燃液体,能溶于乙醇和乙醚,但不溶于水。

用途
该物质广泛应用于染料、医药及香料等工业领域,可用于生产邻氨基苯甲醚、联大茴香胺、色酚AS-OL、大红色基B、直接湖蓝6B、活性溶蓝KD-7G、净洗剂LS等多种产品。

生产方法
其制备过程包括将邻硝基氯苯与烧碱和甲醇进行甲氧基化反应,生成粗品后经过蒸馏、洗涤及干燥处理,最终得到成品。原料消耗定额为:每吨需用邻硝基氯苯1120千克、甲醇270千克。

类别
有毒物品

毒性分级
中毒

急性毒性
口服 - 大鼠 LD50: 740 毫克/公斤;小鼠 LD50: 1300 毫克/公斤

可燃性危险特性
遇明火易燃,并会产生有毒氮氧化物烟雾。

储运特性
应存放在通风、低温且干燥的库房中,避免与氧化剂或食品添加剂混放。

灭火剂
使用二氧化碳、泡沫、砂土或雾状水进行灭火。

职业标准
短期暴露极限(STEL)为1毫克/立方米。

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6

反应信息

  • 作为反应物:
    描述:
    2-硝基苯甲醚盐酸(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloridesodium periodatecopper(l) iodide四(三苯基膦)钯 、 tin(II) chloride dihdyrate 、 乙醇potassium acetatepotassium carbonate 作用下, 以 乙醇硫酸二甲基亚砜乙酸乙酯甲苯 为溶剂, 反应 57.33h, 生成 4-(3-amino-4-methoxyphenyl)-5-methoxycoumarin hydrochloride
    参考文献:
    名称:
    4-芳基香豆素衍生的新型水溶性抗癌剂
    摘要:
    获得了新的 4-芳基香豆素衍生物。它们是众所周知的抗癌药物考布他汀 A-4 的水溶性类似物。合成的关键步骤涉及 Suzuki-Miyaura 交叉偶联。获得的水溶性盐对 HBL-100 和 HaCaT 细胞系表现出相当大的细胞毒活性。
    DOI:
    10.1007/s11172-013-0149-3
  • 作为产物:
    描述:
    2-甲氧基-3-硝基苯甲酸环丁砜碳酸氢钠 作用下, 反应 2.0h, 以93%的产率得到2-硝基苯甲醚
    参考文献:
    名称:
    一种取代硝基苯类化合物的制备方法
    摘要:
    本发明公开了一种取代硝基苯类化合物的制备方法。该方法包括下述步骤:溶剂中,在150℃~250℃的温度下,化合物II在碱的作用下进行如下所示的脱羧反应得到化合物I即可;所述的碱为碱金属的碳酸盐和碳酸氢盐中的一种或多种。该方法相比一些使用金属催化的脱羧方法,具有操作简单、生产成本低、后处理方便、收率高的优点,在工业化生产中更具有应用价值。
    公开号:
    CN109467509B
  • 作为试剂:
    描述:
    邻甲氧基苯胺正丁醛di-μ-chlorobis(norbornadiene)dirhodium(I)2-硝基苯甲醚 作用下, 以 乙醇 为溶剂, 反应 4.0h, 以39%的产率得到3-乙基-8-甲氧基 -2-丙基-喹啉
    参考文献:
    名称:
    铑配合物催化氨基芳烃和脂肪醛合成喹啉
    摘要:
    在催化量的铑配合物和过量相应硝基芳烃的存在下,多种氨基芳烃在 180 °C 下与脂肪醛反应,以极好的收率得到 2-烷基和 2,3-二烷基取代的喹啉。在所检测的铑配合物中,[Rh(降冰片二烯)Cl]2 作为催化剂表现出最高的活性。因此,2-甲基-、2-乙基-3-甲基-、2-丙基-3-乙基-和2-丁基-3-丙基喹啉衍生物很容易从氨基芳烃和乙醛、丙醛、丁醛和戊醛中获得分别。
    DOI:
    10.1246/bcsj.54.3460
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文献信息

  • Microwave-Assisted Rapid and efficient Reduction of Aromatic Nitro Compounds to Amines with Propan-2-ol over Nanosized Perovskite-type SmFeO<sub>3</sub> powder as a New Recyclable Heterogeneous Catalyst
    作者:Saeid Farhadi、Firouzeh Siadatnasab、Maryam Kazem
    DOI:10.3184/174751911x12964930076647
    日期:2011.2

    Nanosized perovskite-type SmFeO3 powder, prepared through the thermal decomposition of Sm[Fe(CN)6].4H2O with an average particle diameter of 28 nm and a specific surface area of 42 m2 g−1, was used as a recyclable heterogeneous catalyst for the efficient and selective reduction of aromatic nitro compounds into the corresponding amines by using propan-2-ol as a hydrogen donor (reducing agent) and KOH as a promoter under microwave irradiation. This highly regio- and chemoselective catalytic method is fast, clean, inexpensive, high yielding and also compatible with the substrates containing easily reducible functional groups. In addition, the nanosized SmFeO3 catalyst can be reused without loss of activity.

    通过热分解 Sm[Fe(CN)6].4H2O(平均颗粒直径为 28 nm,比表面积为 42 m2 g-1)制备的纳米级透辉石型 SmFeO3 粉末被用作一种可回收的异相催化剂,在微波辐照下,以丙烷-2-醇为氢供体(还原剂),以 KOH 为促进剂,将芳香族硝基化合物高效、选择性地还原成相应的胺。这种高度区域和化学选择性的催化方法快速、清洁、廉价、收率高,而且与含有易还原官能团的基质兼容。此外,纳米级 SmFeO3 催化剂可重复使用,且不会失去活性。
  • Cyclic (Alkyl)(amino)carbene Ligand-Promoted Nitro Deoxygenative Hydroboration with Chromium Catalysis: Scope, Mechanism, and Applications
    作者:Lixing Zhao、Chenyang Hu、Xuefeng Cong、Gongda Deng、Liu Leo Liu、Meiming Luo、Xiaoming Zeng
    DOI:10.1021/jacs.0c12318
    日期:2021.1.27
    Transition metal catalysis that utilizes N-heterocyclic carbenes as noninnocent ligands in promoting transformations has not been well studied. We report here a cyclic (alkyl)(amino)carbene (CAAC) ligand-promoted nitro deoxygenative hydroboration with cost-effective chromium catalysis. Using 1 mol % of CAAC-Cr precatalyst, the addition of HBpin to nitro scaffolds leads to deoxygenation, allowing for
    利用 N-杂环卡宾作为非无害配体促进转化的过渡金属催化尚未得到很好的研究。我们在这里报告了具有成本效益的铬催化的环状(烷基)(氨基)卡宾(CAAC)配体促进的硝基脱氧硼氢化反应。使用 1 mol % 的 CAAC-Cr 预催化剂,将 HBpin 添加到硝基支架上会导致脱氧,从而保留各种可还原的官能团和敏感基团对硼氢化的相容性,从而提供一种温和、化学选择性和易于形成的策略苯胺,以及杂芳基和脂肪胺衍生物,具有广泛的范围和特别高的转换数(高达 1.8 × 106)。基于理论计算的机械研究,表明CAAC配体在促进HBpin氢化物极性反转中起重要作用;它用作 H 穿梭以促进脱氧硼氢化。通过这种策略制备的几种市售药物突出了其在药物化学中的潜在应用。
  • Enhanced catalytic performance of cobalt nanoparticles coated with a N,P-codoped carbon shell derived from biomass for transfer hydrogenation of functionalized nitroarenes
    作者:Yanan Duan、Tao Song、Xiaosu Dong、Yong Yang
    DOI:10.1039/c8gc00619a
    日期:——
    (NPs) coated with a N,P-codoped carbon shell derived from naturally renewable biomass and earth-abundant, low-cost cobalt salt and PPh3. The entire process is operationally simple, straightforward, cost-effective and environmentally benign and can be used in mass production for practical application. The resultant catalysts allow for highly efficient and selective transfer hydrogenation of functionalized
    开发用于有机转化的大量可利用的贱金属催化剂仍然是化学研究的重要目标。在本文中,我们报道了第一种简便,快速,活性,廉价且可重复使用的钴纳米颗粒(NPs)的制备方法,该纳米颗粒涂有N,P掺杂的碳壳,该壳由天然可再生生物质和地球上丰富的低成本钴盐和PPh 3制成。。整个过程操作简单,直接,具有成本效益且对环境无害,可用于实际生产中的批量生产。所得的催化剂允许使用甲酸或甲酸铵作为氢供体将官能化的硝基芳烃高效且选择性地转移氢化成相应的苯胺。均匀掺入碳晶格中的N和P与包封的Co NPs表现出协同效应,以工程化催化剂的结构和组成,从而大大提高了催化效率。最具活性的催化剂Co @ NPC-800表现出出色的活性和选择性,可将官能化的硝基芳烃还原为苯胺,特别是装饰有易于还原的官能团的苯胺。
  • Base-free chemoselective transfer hydrogenation of nitroarenes to anilines with formic acid as hydrogen source by a reusable heterogeneous Pd/ZrP catalyst
    作者:Jaya Tuteja、Shun Nishimura、Kohki Ebitani
    DOI:10.1039/c4ra06174h
    日期:——
    transfer hydrogenation (CTH) of nitroarenes using FA as a hydrogen source. Various supported Pd catalysts were examined for this transformation, and Pd supported ZrP (Pd/ZrP) proved to be the best catalyst for CTH of nitrobenzene. Applicability of the Pd/ZrP catalyst is also explored for hydrogenation of various substituted nitroarenes. The Pd/ZrP catalyst showed high specificity for hydrogenation of nitro
    开发了一种高效的,化学选择性的,环境友好的方法,该方法使用FA作为氢源,对硝基芳烃进行催化转移氢化(CTH)。研究了各种负载的Pd催化剂的这种转化,Pd负载的ZrP(Pd / ZrP)被证明是硝基苯CTH的最佳催化剂。还探讨了Pd / ZrP催化剂在各种取代硝基芳烃氢化中的适用性。Pd / ZrP催化剂即使在其他可还原的官能团(例如–C C,–COOCH 3和–C N)存在下,也表现出对硝基氢化的高特异性。为研究反应机理,获得了CTH的Hammett图对取代的硝基芳烃。活动站点被认为是在原地从XRD和TEM数据可以看出,生成了Pd(0)物质。Pd / ZrP催化剂可重复使用至少4次,同时保持相同的活性和选择性。据我们所知,这是在无碱条件下对硝基芳烃进行CTH的最佳方法之一,与多相Pd基催化剂相比,该方法具有高活性和化学选择性。
  • Green synthesis and catalytic properties of palladium nanoparticles for the direct reductive amination of aldehydes and hydrogenation of unsaturated ketones
    作者:Mahmoud Nasrollahzadeh
    DOI:10.1039/c4nj01440e
    日期:——
    This paper reports on the synthesis and use of palladium nanoparticles as heterogeneous catalysts for the reductive amination of aldehydes and hydrogenation of unsaturated ketones. This method has the advantages of high yields, simple methodology and easy work up. The catalyst can be recovered and reused several times without significant loss of catalytic activity.
    本文报道了钯纳米粒子的合成及其作为非均相催化剂用于醛的还原胺化和不饱和酮加氢的应用。该方法具有收率高,方法简单,后处理容易的优点。催化剂可以回收并重复使用几次,而不会显着降低催化活性。
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表征谱图

  • 氢谱
    1HNMR
  • 质谱
    MS
  • 碳谱
    13CNMR
  • 红外
    IR
  • 拉曼
    Raman
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mass
cnmr
ir
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  • 峰位数据
  • 峰位匹配
  • 表征信息
Shift(ppm)
Intensity
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Assign
Shift(ppm)
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测试频率
样品用量
溶剂
溶剂用量
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同类化合物

(βS)-β-氨基-4-(4-羟基苯氧基)-3,5-二碘苯甲丙醇 (S)-(-)-7'-〔4(S)-(苄基)恶唑-2-基]-7-二(3,5-二-叔丁基苯基)膦基-2,2',3,3'-四氢-1,1-螺二氢茚 (S)-盐酸沙丁胺醇 (S)-3-(叔丁基)-4-(2,6-二甲氧基苯基)-2,3-二氢苯并[d][1,3]氧磷杂环戊二烯 (S)-2,2'-双[双(3,5-三氟甲基苯基)膦基]-4,4',6,6'-四甲氧基联苯 (S)-1-[3,5-双(三氟甲基)苯基]-3-[1-(二甲基氨基)-3-甲基丁烷-2-基]硫脲 (R)富马酸托特罗定 (R)-(-)-盐酸尼古地平 (R)-(+)-7-双(3,5-二叔丁基苯基)膦基7''-[((6-甲基吡啶-2-基甲基)氨基]-2,2'',3,3''-四氢-1,1''-螺双茚满 (R)-3-(叔丁基)-4-(2,6-二苯氧基苯基)-2,3-二氢苯并[d][1,3]氧杂磷杂环戊烯 (R)-2-[((二苯基膦基)甲基]吡咯烷 (N-(4-甲氧基苯基)-N-甲基-3-(1-哌啶基)丙-2-烯酰胺) (5-溴-2-羟基苯基)-4-氯苯甲酮 (5-溴-2-氯苯基)(4-羟基苯基)甲酮 (5-氧代-3-苯基-2,5-二氢-1,2,3,4-oxatriazol-3-鎓) (4S,5R)-4-甲基-5-苯基-1,2,3-氧代噻唑烷-2,2-二氧化物-3-羧酸叔丁酯 (4-溴苯基)-[2-氟-4-[6-[甲基(丙-2-烯基)氨基]己氧基]苯基]甲酮 (4-丁氧基苯甲基)三苯基溴化磷 (3aR,8aR)-(-)-4,4,8,8-四(3,5-二甲基苯基)四氢-2,2-二甲基-6-苯基-1,3-二氧戊环[4,5-e]二恶唑磷 (2Z)-3-[[(4-氯苯基)氨基]-2-氰基丙烯酸乙酯 (2S,3S,5S)-5-(叔丁氧基甲酰氨基)-2-(N-5-噻唑基-甲氧羰基)氨基-1,6-二苯基-3-羟基己烷 (2S,2''S,3S,3''S)-3,3''-二叔丁基-4,4''-双(2,6-二甲氧基苯基)-2,2'',3,3''-四氢-2,2''-联苯并[d][1,3]氧杂磷杂戊环 (2S)-(-)-2-{[[[[3,5-双(氟代甲基)苯基]氨基]硫代甲基]氨基}-N-(二苯基甲基)-N,3,3-三甲基丁酰胺 (2S)-2-[[[[[[((1R,2R)-2-氨基环己基]氨基]硫代甲基]氨基]-N-(二苯甲基)-N,3,3-三甲基丁酰胺 (2-硝基苯基)磷酸三酰胺 (2,6-二氯苯基)乙酰氯 (2,3-二甲氧基-5-甲基苯基)硼酸 (1S,2S,3S,5S)-5-叠氮基-3-(苯基甲氧基)-2-[(苯基甲氧基)甲基]环戊醇 (1-(4-氟苯基)环丙基)甲胺盐酸盐 (1-(3-溴苯基)环丁基)甲胺盐酸盐 (1-(2-氯苯基)环丁基)甲胺盐酸盐 (1-(2-氟苯基)环丙基)甲胺盐酸盐 (-)-去甲基西布曲明 龙胆酸钠 龙胆酸叔丁酯 龙胆酸 龙胆紫 龙胆紫 齐达帕胺 齐诺康唑 齐洛呋胺 齐墩果-12-烯[2,3-c][1,2,5]恶二唑-28-酸苯甲酯 齐培丙醇 齐咪苯 齐仑太尔 黑染料 黄酮,5-氨基-6-羟基-(5CI) 黄酮,6-氨基-3-羟基-(6CI) 黄蜡,合成物 黄草灵钾盐