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6-乙氧基-3-苯基-6H-1,2-恶嗪 | 165554-70-1

中文名称
6-乙氧基-3-苯基-6H-1,2-恶嗪
中文别名
——
英文名称
6-ethoxy-3-phenyl-6H-1,2-oxazine
英文别名
6-ethoxy-3-phenyl-6H-oxazine
6-乙氧基-3-苯基-6H-1,2-恶嗪化学式
CAS
165554-70-1
化学式
C12H13NO2
mdl
——
分子量
203.241
InChiKey
SPUCSHYJLIWXBM-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

  • 沸点:
    300.8±52.0 °C(Predicted)
  • 密度:
    1.09±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.5
  • 重原子数:
    15
  • 可旋转键数:
    3
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.25
  • 拓扑面积:
    30.8
  • 氢给体数:
    0
  • 氢受体数:
    3

SDS

SDS:1114ed34afb15dc3985f9bdedb95ad12
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上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    6-乙氧基-3-苯基-6H-1,2-恶嗪 在 ruthenium trichloride 、 sodium periodate 作用下, 以 乙酸乙酯乙腈 为溶剂, 反应 0.1h, 以93%的产率得到(4S,5S,6S)-6-ethoxy-3-phenyl-5,6-dihydro-4H-oxazine-4,5-diol
    参考文献:
    名称:
    Stereoselective Preparation of 4,5-Dihydroxy-5,6-dihydro-4H-1,2-oxazines and Their Derivatives
    摘要:
    cis-Dihydroxylation of 6H-1,2-oxazines 1 proceeds efficiently either by potassium permanganate at low temperature (Method A) or by ruthenium trichloride/sodium periodate at 0-5 degrees C (Method B). The resulting 4,5-dihydroxylated 1,2-oxazines 2 were usually obtained as diastereomerically pure compounds with the two newly introduced hydroxy groups positioned trans to the 6-alkoxy group. These products can be protected by standard methods either as acetals 4 or as diacetoxy compounds 5. In addition, the bicyclic orthoesters 7 and 8, dimesylates 15, and cyclic sulfates 19 have been prepared. First experiments dealing with transformations of the oxygen functionalities are described.
    DOI:
    10.1055/s-1999-3524
  • 作为产物:
    参考文献:
    名称:
    Homann, Kai; Angermann, Joerg; Collas, Markus, Journal fur Praktische Chemie - Chemiker-Zeitung, 1998, vol. 340, # 7, p. 649 - 655
    摘要:
    DOI:
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文献信息

  • Highly Stereoselective and Flexible Synthesis of 6-Alkoxy-5,6-dihydro-4<i>H</i>-1,2-oxazines by Conjugate Addition of Organolithium Compounds to 6<i>H</i>-1,2-Oxazines Followed by Trapping with Electrophiles
    作者:Hans-Ulrich Reissig、Monika Buchholz
    DOI:10.1055/s-2002-33107
    日期:——
    additions of reactive organolithium compounds such as phenyllithium, n-butyllithium, tert-butyllithium, and 2-propenyllithium to 6H-1,2-oxazines 1, 24, and 25 followed by trapping of the intermediates with electrophiles gave a variety of highly substituted 6-alkoxy-5,6-dihydro-4H-1,2-oxazines 2-15 and 27-30 generally in very good yields. Most interestingly, this reaction sequence proceeds with high stereocontrol
    将反应性有机锂化合物(如苯基锂正丁基锂叔丁基锂2-丙烯基锂)共轭加成到 6H-1,2-恶嗪 1、24 和 25,然后用亲电试剂捕获中间体,得到各种高度取代的6-alkoxy-5,6-dihydro-4H-1,2-oxazines 2-15 和 27-30 通常产率非常好。最有趣的是,该反应序列以高度立体控制进行,大量过量或仅产生反式、反式-非对映异构体。使用苯甲醛作为亲电子试剂,仅形成了化合物 8,它是八种可能的非对映异构体之一。甲基锂化的甲氧基丙二烯作为亲核组分提供预期的加成产物 17 和 19,但对于这些反应性较低的有机锂化合物,双 1,2-恶嗪 18 和 20 的形成似乎是不可避免的。
  • A Modular Synthesis of Functionalized Pyridines through Lewis-Acid-Mediated and Microwave-Assisted Cycloadditions between Azapyrylium Intermediates and Alkynes
    作者:Igor Linder、Markus Gerhard、Luise Schefzig、Michal Andrä、Christoph Bentz、Hans-Ulrich Reissig、Reinhold Zimmer
    DOI:10.1002/ejoc.201100765
    日期:2011.10
    conditions to furnish the expected pyridine derivatives 3k and 3l in respectable yields. The 3-bromo-substituted pyridines 11 were further functionalized through palladium-catalyzed couplings such as Suzuki or Sonogashira reactions, which led smoothly to tri- or tetrasubstituted pyridine derivatives such as 19–21 and 23. Reductive debromination of 11e afforded the pyridine 17 in excellent yield, whereas
    在本报告中,我们描述了差异功能化吡啶衍生物 3 和相关 3-取代吡啶的合成 11. 6H-1,2-恶嗪前体(1a、1b、5、6 或 12)的原位解离,介导通过三氟化硼 - 乙醚,生成氮杂吡啶鎓中间体 A,该中间体与各种单取代和双取代的炔烃 2 发生杂狄尔斯 - 阿尔德反应。 一般来说,这些吡啶的合成效率很高,并且在所有位置都非常灵活吡啶核。对于 3-苯基取代的吡啶衍生物 3a-3j 和 11a-11f,最佳结果是通过新的微波辅助方案获得的,这明显优于以前在二氯甲烷中低温使用的常规方法。此外,3-(三甲基)-和3-丙烯酰基取代的6H-1,2-恶嗪在微波辐射条件下完全反应,以可观的产率提供预期的吡啶衍生物3k和3l。3-取代的吡啶 11 通过催化的偶联反应进一步官能化,如 Suzuki 或 Sonogashira 反应,顺利产生三或四取代的吡啶衍生物,如 19-21 和 23。11e 的还原脱得到吡啶
  • Hetero Diels-Alder Reactions of 2-Chloro-1nitroso-1-phenylethene: Preparation of Novel 4-Chloro-Substituted 1,2-Oxazins and Subsequent Reactions
    作者:Reinhold Zimmer、Jörg Angermann、Ute Hain、Florian Hiller、Hans-Ulrich Reissig
    DOI:10.1055/s-1997-1373
    日期:1997.12
    The cycloaddition of 2-chloro-1-nitroso-1-phenylethene (3), generated in situ from 2,2-dichloro-1-phenylethan-1-one oxime (2) to electron-rich olefins, e.g. silyl enol ethers or alkyl enol ethers, furnished the 4-chloro-substituted 5,6-dihydro-4H-1,2-oxazines and 6H-1,2 oxazines in moderate to good yields and with good diastereoselectivities. Bromo enol ether 18 led to the unexpected α,α-dichloro oxime derivative 21 as well as the halogenated 6H-1,2-oxazines 19 and 20. Starting from 4-chloro-1,2-oxazines 5 and 17, 4-azido-, 4-amino-, 4-hydroxy-, and 4-oxo-substituted 1,2-oxazines were prepared. Hydrogenolysis of 5,6-dihydro-4H-1,2-oxazine 5 afforded amine 31.
    在电子丰富的烯烃,例如醚醇或烷基醚醇存在下,2--1-亚硝基-1-苯乙烯(3),由2,2-二-1-苯乙酮(2)原位生成,经过环加成反应,以中等到良好的产率和良好的非对映选择性得到4-取代的5,6-二氢-4H-1,2-嗪和6H-1,2-嗪。醚醇18意外地产生了α,α-二生物21以及卤代的6H-1,2-嗪19和20。以4--1,2-嗪5和17为起始物,合成了4-叠氮基、4-基、4-羟基和4-氧代取代的1,2-嗪。氢解5,6-二氢-4H-1,2-嗪5得到了胺31。
  • Scalable Synthesis of Benzotriazoles via [3+2] Cycloaddition of Azides and Arynes in Flow
    作者:Merlin Kleoff、Lisa Boeser、Linda Baranyi、Philipp Heretsch
    DOI:10.1002/ejoc.202001543
    日期:2021.2.12
    Substituted benzotriazoles are prepared from arynes and azides in a metal‐free [3+2] cycloaddition within minutes. Using a flow reactor, thermal strain of hazardous azides is minimized for a readily scalable and safe process.
    取代的苯并三唑可在几分钟内由芳烃叠氮化物在无属[3 + 2]环加成中制备。使用流动反应器,可最大限度地降低危险的叠氮化物的热应变,从而可轻松扩展和安全地进行处理。
  • 1,2-Oxazines as Building Blocks for Stereoselective Synthesis: Preparation of Oxygen-Substituted 1,2-Oxazines, either by Alcohol Addition or by Epoxidation, and Subsequent Hydrogenation Leading to 1,2-Amino Alcohols and Pyrrolidines
    作者:Reinhold Zimmer、Monika Buchholz、Markus Collas、Jörg Angermann、Kai Homann、Hans-Ulrich Reissig
    DOI:10.1002/ejoc.201000425
    日期:2010.7
    corresponding epoxides 25 and 32 in reasonable to excellent yields. It was demonstrated that the resulting oxygen-substituted 1,2-oxazines were suitable precursors for the preparation of cyclic or acyclic primary and secondary amines in racemic or enantiopure form. Hydrogenation of the 3-phenyl-substituted 1,2-oxazines 3 and 25a and of (6S)- and (6R)-32 preferentially furnished the 1,2-amino alcohols
    立体定义的氧取代 1,2-恶嗪通过三种不同的途径制备。烯醇醚如 1 与原位生成的 α-亚硝基烯烃的环加成得到杂环 3 和 4。醇在酸催化下加成到 6H-1,2-恶嗪 5 导致加合物 6 和取代产物 7 的混合物具有中等化学选择性。6H-1,2-恶嗪5的环氧化更有效地进行并且以合理到极好的产率提供相应的环氧化物25和32。结果表明,所得氧取代的 1,2-恶嗪是制备外消旋或对映纯形式的环状或非环状伯胺和仲胺的合适前体。3-苯基取代的1,2-恶嗪3和25a以及(6S)-和(6R)-32的氢化优先提供1,2-基醇15、rac-29 和 (2S)- 和 (2R)-29。另一方面,3-乙氧基羰基取代的1,2-恶嗪4、6d和20的还原导致以中等产率形成N-保护的脯酸酯21-24。还发现 5-甲基-6H-1,2-恶嗪 10 是炔丙醚 11 的良好前体,它允许 Pauson-Khand 反应产生三环化合物
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同类化合物

乙基6H-1,2-恶嗪-3-羧酸酯 6-乙氧基-6H-1,2-恶嗪-3-甲醛 6-乙氧基-3-苯基-6H-1,2-恶嗪 5-甲氧基-3,6-二氢-2H-[1,4]恶嗪 5-乙氧基-3,6-二氢-2H-1,4-恶嗪 5,6-二氢-2H-1,4-恶嗪-3-胺 4H-1,4-恶嗪 4-(叔丁氧羰基)-4H-[1,4]恶嗪 3H-咪唑并[2,1-c][1,4]恶嗪 3-甲基-5-苯基-2H-1,4-恶嗪 3,5-二苯基-2H-1,4-恶嗪 3,5,5,6-四甲基-5,6-二氢-2H-1,4-恶嗪-2-酮 2H-[1,4]恶嗪并[3,4-b][1,3]恶嗪 2H-1,4-恶嗪 2H-1,4-噁嗪-2-酮,5,6-二氢-5-(1-甲基乙基)-3-苯基-,(S)- 2H-1,4-噁嗪-2-酮,3-(1,1-二甲基乙基)-5,6-二氢-5-苯基-,(R)- 2H-1,3-恶嗪 2H-1,2-恶嗪 2-异丙基-4,4,6-三甲基-4H-1,3-恶嗪 2-(二甲基氨基)-4-苯基-4H-1,3-恶嗪-5-甲醛 2,4,4-三(三氟甲基)-6-全氟丁基-1,3,5-恶二嗪 (5S)-5,6-二氢-6,6-二甲基-5-苯基-2H-1,4-恶嗪-2-酮 3-(triethylsilyl)-2,5-dihydrofuran 4,4,6-trimethyl-2-propyl-4H-[1,3]oxazine 3-methyl-6,7,8,8a-tetrahydro-5H-cyclohepta[d]isoxazole 2,4-Dicyan-6-methyl-1,3-oxazepin 2,4-Dicyan-1,3-oxazepin 4-tert-Butyl-2,4,6-trimethyl-4H-pyran 3-(4,4,6-trimethyl-4H-[1,3]oxazin-2-yl)-propionitrile 4,4,6-Trimethyl-2-isopropenyl-1,3,4-oxazin 4a,7a-dihydro-4a,6-dimethyl-3-phenyl-4H-furo<2,3-e>-1,2-oxazine 3-methyl-1,4,6,9-tetraoxa-2-aza-5λ5-phospha-spiro[4.4]non-2-ene 6,8-Diethyl-1,1,2,2,3,3-hexafluoro-5-oxa-7,9-diaza-spiro[3.5]nona-6,8-diene (R)-4-Ethyl-3-((4S,5S)-4-methoxymethyl-5-phenyl-4,5-dihydro-oxazol-2-yl)-4H-pyridine-1-carboxylic acid methyl ester 4-Phenyl-2-pyrrolidin-1-yl-4,5-dihydro-furan-3-carbonitrile (S)-4-Ethyl-3-((4S,5S)-4-methoxymethyl-5-phenyl-4,5-dihydro-oxazol-2-yl)-4H-pyridine-1-carboxylic acid methyl ester (3S)-5-methyl-3-propan-2-yl-2,3-dihydro-1,4-oxazin-6-one dimethyl[η(10)-2,4-cyclopentadien-1-ylidene(dimethylsilylene)(3,4-di-tert-butyl-2,4-cyclopentadien-1-ylidene)]zirconium tert-butoxymethyl[η(10)-2,4-cyclopentadien-1-ylidene(dimethylsilylene)(3,4-di-tert-butyl-2,4-cyclopentadien-1-ylidene)]zirconium 2-Trimethylsilyl-4-methyl-4H-pyran methyl 3-methyl-6-trimethylsilylcyclohexa-1,4-dienecarboxylate 5-methyl-3-phenyl-(3ar,6ac)-3a,6a-dihydro-furo[2,3-d]isoxazole 2-methyl-4-chloro-3,6-dihydro-1,2-oxazine 4-n-butyl-3-<(N,N-diethylamino)methyl>-4,6-dimethyl-4H-pyran 3,5-diphenyl-(3ar,4at,7at,9ac)-3a,4a,7a,9a-tetrahydro-cyclohepta[2,1-d;4,5-d']diisoxazol-4-one 2-methyl-5-chloro-3,6-dihydro-1,2-oxazine 4,4-Di-tert-butyl-3-methyl-4H-<1,2>oxazet-N-oxid 6H-Pyrano[3,4-c]pyridine 6-ethoxy-3-phenyl-4-(trimethylsilylethynyl)-6H-1,2-oxazine 5,5-Dimethyl-2-oxazolin-4-spiro-3'-(1'-pyrrolin)