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5-phenoxycarbonyl-4-phenyl-2-(4-methoxyphenyl)-oxazole | 627877-67-2

中文名称
——
中文别名
——
英文名称
5-phenoxycarbonyl-4-phenyl-2-(4-methoxyphenyl)-oxazole
英文别名
5-phenoxycarboxyl-4-phenyl-2-(4-methoxyphenyl)-oxazole;2-(4-methoxyphenyl)-4-phenyloxazol-5-yl phenyl carbonate;[2-(4-Methoxyphenyl)-4-phenyl-1,3-oxazol-5-yl] phenyl carbonate
5-phenoxycarbonyl-4-phenyl-2-(4-methoxyphenyl)-oxazole化学式
CAS
627877-67-2
化学式
C23H17NO5
mdl
——
分子量
387.392
InChiKey
VJKSGNZBWISUMB-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

计算性质

  • 辛醇/水分配系数(LogP):
    5.7
  • 重原子数:
    29
  • 可旋转键数:
    7
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.04
  • 拓扑面积:
    70.8
  • 氢给体数:
    0
  • 氢受体数:
    6

反应信息

  • 作为反应物:
    描述:
    5-phenoxycarbonyl-4-phenyl-2-(4-methoxyphenyl)-oxazole 在 2-phenyl-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate 、 三乙胺 作用下, 以 四氢呋喃 为溶剂, 反应 2.0h, 以72%的产率得到phenyl 2-(4-methoxyphenyl)-5-oxo-4-phenyl-4,5-dihydrooxazole-4-carboxylate
    参考文献:
    名称:
    NHC中的有机碱效应促进了O-到C-羧基的转移;化学选择性概况,机理研究和多米诺骨牌催化†
    摘要:
    由NEt 3原位产生的由三唑啉亚基促进的碳酸恶唑基碳酸酯的O - C羧基转移与由KHMDS生成的三唑啉亚基促进的相同反应显示出明显不同的速率和化学选择性。通过广泛的交叉研究探索了这些途径的机制,以了解这一过程。尽管手性NHC在这些多米诺反应过程中仅产生适度水平的不对称诱导(<15%ee),但使用NEt 3作为碱基可以开发出多米诺骨牌多步反应序列。
    DOI:
    10.1039/c1ob05160a
  • 作为产物:
    参考文献:
    名称:
    对映选择性 TADMAP 催化羧基迁移反应合成立体季碳
    摘要:
    手性亲核催化剂 TADMAP [1, 3-(2,2,2-三苯基-1-乙酰氧基乙基)-4-(二甲氨基)吡啶]已由 3-锂硫-4-(二甲氨基)吡啶 (5) 和三苯乙醛 (3),然后进行酰化和拆分。TADMAP 催化恶唑基、呋喃基和苯并呋喃基烯醇碳酸酯的羧基迁移,具有良好到极好的对映选择水平。恶唑反应特别有效,用于制备含有季不对称碳的手性内酰胺 (23) 和内酯 (30)。吲哚系列中 TADMAP 催化的羧基迁移相对较慢,并且具有不一致的对映选择性。建模研究 (B3LYP/6-31G*) 已用于定性关联催化剂构象、反应性和对映选择性。
    DOI:
    10.1021/ja056150x
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文献信息

  • Amidine catalysed O- to C-carboxyl transfer of heterocyclic carbonate derivatives
    作者:Caroline Joannesse、Carmen Simal、Carmen Concellón、Jennifer E. Thomson、Craig D. Campbell、Alexandra M. Z. Slawin、Andrew D. Smith
    DOI:10.1039/b805850d
    日期:——
    The structural requirements of amidines necessary to act as efficient O- to C-carboxyl transfer agents are delineated and the scope of this process outlined through its application to a range of oxazolyl, benzofuranyl and indolyl carbonates.
    为了成为有效的O向C羧基转移剂,基的结构要求被阐明,并通过应用于一系列噁唑基、苯并呋喃基和吲哚碳酸酯来概述该过程的范围。
  • Isothiourea-Mediated Asymmetric O- to C-Carboxyl Transfer of Oxazolyl Carbonates: Structure-Selectivity Profiles and Mechanistic Studies
    作者:Caroline Joannesse、Craig P. Johnston、Louis C. Morrill、Philip A. Woods、Madeleine Kieffer、Tobias A. Nigst、Herbert Mayr、Tomas Lebl、Douglas Philp、Ryan A. Bragg、Andrew D. Smith
    DOI:10.1002/chem.201102847
    日期:2012.2.20
    The structural motif within a series of tetrahydropyrimidine‐based isothioureas necessary for generating high asymmetric induction in the asymmetric Steglich rearrangement of oxazolyl carbonates is fully explored, with crossover and dynamic 19F NMR experiments used to develop a mechanistic understanding of this transformation.
    充分探索了一系列四氢嘧啶基异硫脲中的结构基序,这些结构对于恶唑碳酸酯的不对称Steglich重排产生高不对称诱导是必要的,并使用交叉和动态19 F NMR实验来发展对该转变的机理理解。
  • Probing the Efficiency of N-Heterocyclic Carbene Promoted <i>O</i>- to C-Carboxyl Transfer of Oxazolyl Carbonates
    作者:Jennifer E. Thomson、Craig D. Campbell、Carmen Concellón、Nicolas Duguet、Kathryn Rix、Alexandra M. Z. Slawin、Andrew D. Smith
    DOI:10.1021/jo702720a
    日期:2008.4.1
    Screening of a range of azolium salts, bases and solvents for reactivity indicates that triazolinylidenes, generated in situ with KHMDS in THF, promote the Steglich rearrangement of oxazolyl carbonates with high catalytic efficiency (typical reaction time 5 min at < 1.5 mol % NHC). This protocol shows wide substrate applicability, even allowing the efficient generation of vicinal quaternary centers. An improved experimental procedure is also described that allows a simplified one-pot reaction protocol to be employed with similarly high catalytic efficiency.
  • Development of Chiral Nucleophilic Pyridine Catalysts:  Applications in Asymmetric Quaternary Carbon Synthesis
    作者:Scott A. Shaw、Pedro Aleman、Edwin Vedejs
    DOI:10.1021/ja037223k
    日期:2003.11.1
    TADMAP (1a), a new chiral DMAP catalyst, has been designed to place a C(3)-benzylic trityl group over one face of the pyridine ring, while a C(3)-benzylic acetoxy group creates a chirotopic environment on the other face. TADMAP was prepared in four steps (37% overall) from triphenylacetic acid and (dimethylamino)pyridine and was resolved using camphorsulfonic acid. TADMAP catalyzes the enantioselective rearrangement from oxazolyl phenyl carbonates 4 to azlactones 5, from furanyl phenyl carbonate 8 to the furanone 9, from the benzofuranyl carbonates 11a and 11b to benzofuranones 12a and 12b, and from the indolyl carbonates 11c and 11d to oxindoles 12c and 12d. The products are formed in good yield and, in most cases, with practical levels of enantiomer excess at the newly formed quaternary carbon.
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