diethyl 2-cyano-3-methyl-1-phenylbutylmalonate | 38010-63-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: diethyl 2-cyano-3-methyl-1-phenylbutylmalonate
• 英文别名: diethyl 2-(2-cyano-3-methyl-1-phenylbutyl)propanedioate
• CAS: 38010-63-8
• 化学式: C₁₉H₂₅NO₄
• 分子量: 331.412
• InChiKey: GKSJFQJLSSSERF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  24
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  76.4
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-bromo-3-methylbutyronitrile 、 亚苯甲基丙二酸二乙酯 生成 diethyl 2-cyano-3-methyl-1-phenylbutylmalonate
  参考文献：
  名称：

  锌α-溴异丁酸酯：I.醛的缩合，结构和活性，乙醛和丙二酸丙二酸酯

  摘要：

  衍生自α-溴腈的有机锌化合物很容易在四氢呋喃（THF）中制成溶液，并以C金属化形式存在。它们通常与醛和饱和酮缩合。描述了许多新的β-羟基腈。取决于初始溴腈的性质，共轭不饱和酮的添加导致形成β-羟基腈或酮腈。苯甲醛与锌-α-溴腈的反应的立体化学不受溶剂性质的影响。与丙二酸二乙酯亚烷基的缩合产生预期的1，4-加成产物。

  DOI：

  10.1016/s0022-328x(00)88900-7

文献信息

• Preparation and reactivity of highly functionalized organometallics at the .alpha. position of oxygen or nitrogen
  作者：Paul Knochel、Tso Sheng Chou、Carole Jubert、Duddu Rajagopal

  DOI：10.1021/jo00055a010

  日期：1993.1

  Alpha-Halogenoalkyl carboxylates (FG-R1CH(X)(OCOR2); FG = COOR, CN, SR; X = I, Br) were readily prepared by the addition of an acid chloride or bromide (R2COX; X = Br or Cl) to an aldehyde (FG-RCHO) in the presence of a catalytic amount of ZnCl2. They insert efficiently zinc dust in THF-DMSO (X = Br, 8-10-degrees-C, 6-10 h) affording the corresponding zinc organometallics at the a position to oxygen FG-RCH(ZnBr)(OAc). After the addition of the THF-soluble copper salt CuCN.2LiCl, the corresponding copper reagents FG-RCH(Cu(CN)ZnBr)(OAc) are formed and reacted with various classes of electrophiles such as acid chlorides, aldehydes, enones, allylic and alkynyl halides, activated alkynes, nitro olefins and alkylidenemalonates providing polyfunctional molecules in excellent yields. Similarly, zinc organometallics at the a position to the nitrogen of cyclic imides were prepared by the zinc insertion to cyclic alpha-chloromethyl (or alpha-chloroethyl) imides. After their transmetalation to the corresponding copper organometallic ((R1CO)2NCH(R)(Cu(CN)ZnCl); R = Me or H), they were reacted with allylic and alkynyl halides and ethyl propiolate affording polyfunctional imides. The reaction of cyclic N-(chloromethyl)imides with aldehydes in the presence of chromium(II) chloride in THF furnishes protected amino alcohols in 36-95% yield.
• Knochel Paul, Chou Tso-Sheng, Jubert Carole, Rajagopal Duddu, J. Org. Chem., 58 (1993) N 3, S 588-599
  作者：Knochel Paul, Chou Tso-Sheng, Jubert Carole, Rajagopal Duddu

  DOI：——

  日期：——
• Sur les zinciques issus des α-bromonitriles
  作者：Nicole Goasdoué、Marcel Gaudemar

  DOI：10.1016/s0022-328x(00)88900-7

  日期：1972.6

  Organozinc compounds derived from α-bromonitriles are readily prepared in solution in tetrahydrofuran (THF) and exist in the C metallated form. They condense normally with aldehydes and saturated ketones. A number of new β-hydroxy-nitriles are described. The addition of conjugated unsaturated ketones results in the formation of β-hydroxynitriles or ketonitriles, depending on the nature of the initial

  衍生自α-溴腈的有机锌化合物很容易在四氢呋喃（THF）中制成溶液，并以C金属化形式存在。它们通常与醛和饱和酮缩合。描述了许多新的β-羟基腈。取决于初始溴腈的性质，共轭不饱和酮的添加导致形成β-羟基腈或酮腈。苯甲醛与锌-α-溴腈的反应的立体化学不受溶剂性质的影响。与丙二酸二乙酯亚烷基的缩合产生预期的1，4-加成产物。