phenyl hydrazinecarboxylate | 20605-43-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: phenyl hydrazinecarboxylate
• 英文别名: phenyl carbazate；O-phenyl carbazate；hydrazinecarboxylic acid phenyl ester；phenyl N-aminocarbamate
• CAS: 20605-43-0
• 化学式: C₇H₈N₂O₂
• mdl: MFCD00014753
• 分子量: 152.153
• InChiKey: DNDTZRSLSJSECH-UHFFFAOYSA-N

物化性质

• 熔点：
  105 °C
• 沸点：
  313.7±15.0 °C(Predicted)
• 密度：
  1.236±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  64.4
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 海关编码：
  2928000090
• 危险性防范说明：
  P261,P280,P301+P312,P302+P352,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温

反应信息

• 作为反应物：
  描述：

  phenyl hydrazinecarboxylate 在 sodium sulfate 、 三氟乙酸 作用下， 以 二氯甲烷 、 苯 为溶剂， 反应 60.0h， 生成 碳酸二苯酯
  参考文献：
  名称：

  Diarylo×ycarbenes from o×adiazolines

  摘要：

  Symmetric and unsymmetric 2,2-diaryloxy-5,5-dimethyl-Delta (3)-1,3,4-oxadiazolines were synthesized by oxidative cyclization of aryloxycarbonyl hydrazones of acetone with lead tetraacetate and subsequent treatment of the product mixture with a phenol in acidic solution. Thermolysis of the oxadiazolines in benzene solution at 110 degreesC afforded carbonyl ylide intermediates that cyclize, in part, to the corresponding 2,2-diaryloxyoxirane intermediates. The oxiranes, which were not observed, are required to account for the 1,1-diaryloxy-2-methylpropenes (ketene acetals) that were isolated. Most of the carbonyl ylides fragment to acetone and diaryloxycarbenes. The latter form dimers (tetraaryloxyethenes) or they can be trapped with phenols to form orthoformates. Diphenoxycarbene was also trapped with dimethyl acetylenedicarboxylate (DMAD). The method appears to be the first for generating the parent diphenoxycarbene under relatively mild conditions in solution, and the only one to date for generating unsymmetrically substituted diaryloxycarbenes. Minor competing fragmentations of the oxadiazolines to 2-diazopropane and the appropriate diaryl carbonates, were also observed.

  DOI：

  10.1139/cjc-79-3-319
• 作为产物：
  描述：

  碳酸二苯酯 在 肼 作用下， 以 四氢呋喃 、 Petroleum ether 为溶剂， 反应 4.0h， 以91%的产率得到phenyl hydrazinecarboxylate
  参考文献：
  名称：

  掩蔽 N-酰基-N-异氰酸酯的研究：支持恶二唑酮作为封闭的 N-异氰酸酯前体。

  摘要：

  与作为常见结构单元的碳取代异氰酸酯相比，N-取代异氰酸酯仍然不发达，关于其 N-酰基衍生物（即酰胺基异氰酸酯）的报道极为罕见。在本文中，在从简单的实验室稳定前体开始合成氮杂三肽和乙内酰脲亚基的背景下研究了酰胺基异氰酸酯。一个关键发现是原位形成的酰氨基异氰酸酯环化产生恶二唑酮，并且在合适的反应条件下，该杂环是无痕封闭（掩蔽）N-异氰酸酯。使用有机碱作为催化剂并在加热时观察到恶二唑酮的形成，以及各种亲核试剂以中等至高产率提供所需的氮杂二肽或乙内酰脲。

  DOI：

  10.1002/chem.202102301

文献信息

• Synthesis of Ring-Substituted Phenyl Hydrazinecarboxylates and Study of Their Protonation in Dimethyl Sulfoxide Solutions
  作者：Petr Vlasák、Patrik Pařík、Jiří Klicnar、Jaromír Mindl

  DOI：10.1135/cccc19980793

  日期：——

  The pK_a values of nineteen phenyl hydrazinecarboxylate hydrochlorides R-C₆H₄OCONHNH₂·HCl (R = H, 3- and 4-Cl, 3- and 4-O₂N, 4-Me) and their 1-methyl or 2-methyl derivatives were determined by potentiometric titration with tetrabutylammonium hydroxide in DMSO. IR spectra of the hydrazinecarboxylates and their hydrochlorides revealed that the hydrazinecarboxylate protonation occurs at N². The methods of synthesis of phenyl hydrazinecarboxylate and their N-methyl derivatives were optimized.

  十九种苯基肼羧酸盐盐酸盐R-C6H4OCONHNH2·HCl（R = H，3-和4-Cl，3-和4-O2N，4-Me）及其1-甲基或2-甲基衍生物的pKa值通过在DMSO中与四丁基铵氢氧化物进行电位滴定确定。肼羧酸盐及其盐酸盐的红外光谱表明肼羧酸盐的质子化发生在N2处。苯基肼羧酸盐及其N-甲基衍生物的合成方法已经优化。
• Preparation and properties of some α-aza-amino-acid derivatives, their possible use in peptide synthesis
  作者：C.J. Gray、J.C. Ireson、R.C. Parker

  DOI：10.1016/0040-4020(77)80185-3

  日期：1977.1

  Some derivatives of azaglycine and azaphenylalanine are described. Esters of acetyl- and benzoyl-aza-amino-acids rapidly cyclise to stable oxadiazolones and it is concluded that similar derivatives would be unsuitable for aza-peptide synthesis. t-Butyloxycarbonyl-azaglycine azide was too unreactive for use in peptide synthesis. Benzoyl-azaglycylphenylalanine ethyl ester and acetyl-azaphenylalanylphenylalanine

  描述了氮杂甘氨酸和氮杂苯丙氨酸的一些衍生物。乙酰基和苯甲酰基-氮杂氨基酸的酯迅速环化成稳定的恶二唑酮，并且得出结论，类似的衍生物将不适合用于氮杂肽的合成。叔丁氧羰基-氮杂甘氨酸叠氮化物对于用于肽合成而言太不活泼。通过将苯甲酰肼和N-乙酰基-N′-苄基酰肼分别与2，4-二硝基苯氧基羰基-苯丙氨酸乙酯偶合，制得苯甲酰基-氮杂甘氨酰基苯基丙氨酸乙酯和乙酰基-氮杂苯丙酰基苯基丙氨酸乙酯。
• A novel type of nonsteroidal estrone sulfatase inhibitors
  作者：Peter Jütten、Winfried Schumann、Albert Härtl、Lothar Heinisch、Udo Gräfe、Walter Werner、Hermann Ulbricht

  DOI：10.1016/s0960-894x(02)00171-3

  日期：2002.5

  structure-activity relationships of our study into a series of thiosemicarbazone derivatives of madurahydroxylactone as potential nonsteroidal inhibitors of the enzyme estrone sulfatase. The most active compound, the cyclohexylthiosemicarbazone, was shown to be a non-competitive inhibitor with a K(i) of 0.35microM. This compound is devoid of estrogenic properties and showed low acute toxicity in the hen's

  马杜拉羟基内酯（MHL）是土壤细菌野紫菜（Nonomuria rubra）产生的次生代谢产物，属于苯并[a]萘并醌类。我们报告的初步结果和我们的研究成一系列的马杜拉羟基内酯的硫半脲衍生物作为潜在的非甾体类雌激素硫酸酯酶抑制剂的结构活性关系。活性最高的化合物，环己基硫代半脲，显示为非竞争性抑制剂，K（i）为0.35microM。该化合物缺乏雌激素特性，在母鸡的可育卵筛查试验中显示出较低的急性毒性。
• Synthesis of Indazolones via Friedel–Crafts Cyclization of Blocked (Masked) <i>N</i>-Isocyanates
  作者：Eslam B. Elkaeed、Jing An、André M. Beauchemin

  DOI：10.1021/acs.joc.7b01607

  日期：2017.9.15

  are rare amphoteric reagents with high, but underdeveloped synthetic potential. Herein, we study the formation of indazolones by Friedel–Crafts cyclization of N-isocyanates using blocked (masked) N-isocyanate precursors: the effect of the masking group and the reaction scope have been delineated. Substrate synthesis has also been improved using a reported copper-catalyzed coupling of arylbismuth(V) reagents

  氮取代的异氰酸酯（N-异氰酸酯）是罕见的两性试剂，具有很高的合成潜力，但开发潜力不大。在本文中，我们研究了使用封端的（被掩蔽的）N-异氰酸酯前体通过Friedel-Crafts对N-异氰酸酯的环化形成吲哚酮的作用：已经描述了掩蔽基团的作用和反应范围。使用已报道的与半不稳定的OPh封端基团兼容的芳基铋（V）试剂的铜催化偶联也可以改善底物的合成。
• Copper-Catalyzed Coupling of Amines with Carbazates: An Approach to Carbamates
  作者：Song-Ning Wang、Guo-Yu Zhang、Adedamola Shoberu、Jian-Ping Zou

  DOI：10.1021/acs.joc.1c01031

  日期：2021.7.2

  A new approach for the preparation of carbamates via the copper-catalyzed cross-coupling reaction of amines with alkoxycarbonyl radicals generated from carbazates is described. This environmentally friendly protocol takes place under mild conditions and is compatible with a wide range of amines, including aromatic/aliphatic and primary/secondary substrates.

  描述了一种通过胺与由氨基甲酸酯产生的烷氧基羰基的铜催化交叉偶联反应制备氨基甲酸酯的新方法。这种环境友好的协议在温和的条件下进行，并且与多种胺兼容，包括芳香族/脂肪族和初级/次级底物。