5-iodo-2,2-dimethylpentanal | 680614-41-9

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机碘化物
• 英文名称: 5-iodo-2,2-dimethylpentanal
• CAS: 680614-41-9
• 化学式: C₇H₁₃IO
• 分子量: 240.084
• InChiKey: INTLXLFSHZVDSZ-UHFFFAOYSA-N

物化性质

• 沸点：
  221.4±23.0 °C(Predicted)
• 密度：
  1.497±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.43
• 重原子数：
  9.0
• 可旋转键数：
  4.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  17.07
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  5-iodo-2,2-dimethylpentanal 在 pig liver esterase 、 草酰氯 、 水 、 四氯化锡 、 sodium hydride 、 potassium carbonate 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 甲醇 、 aq. phosphate buffer 、 二氯甲烷 为溶剂， 反应 45.08h， 生成 (S)-methyl 3,3-dimethyl-2-methylene-1-(phenylcarbamoyl)cyclohexanecarboxylate
  参考文献：
  名称：

  Preparation of chiral building blocks for the enantioselective total synthesis of ent-kauranoids by the pig liver esterase-catalyzed asymmetric hydrolysis of a dialkyl malonate-type prochiral diester

  摘要：

  The preparation of chiral building blocks, suitable for use in the enantioselective total synthesis of kauranoids and ent-kauranoids, is reported herein. The pig liver esterase-catalyzed asymmetric hydrolysis of dimethyl 3,3-dimethyl-2-methylenecyclohexane-1,2-dicarboxylate, a malonate-type prochiral diester, afforded the corresponding half-ester in 96% yield and with 99% enantiomeric excess. The absolute configuration of the half-ester was determined by X-ray crystallographic analysis of its derivative and its enantiodivergent transformations are also described herein. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2014.01.019
• 作为产物：
  描述：

  2-(5-iodo-2-methylpentan-2-yl)-1,3-dioxolane 在 对甲苯磺酸 作用下， 以 水 、 丙酮 为溶剂， 反应 10.0h， 以80%的产率得到5-iodo-2,2-dimethylpentanal
  参考文献：
  名称：

  Preparation of chiral building blocks for the enantioselective total synthesis of ent-kauranoids by the pig liver esterase-catalyzed asymmetric hydrolysis of a dialkyl malonate-type prochiral diester

  摘要：

  The preparation of chiral building blocks, suitable for use in the enantioselective total synthesis of kauranoids and ent-kauranoids, is reported herein. The pig liver esterase-catalyzed asymmetric hydrolysis of dimethyl 3,3-dimethyl-2-methylenecyclohexane-1,2-dicarboxylate, a malonate-type prochiral diester, afforded the corresponding half-ester in 96% yield and with 99% enantiomeric excess. The absolute configuration of the half-ester was determined by X-ray crystallographic analysis of its derivative and its enantiodivergent transformations are also described herein. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2014.01.019

文献信息

• A Three-Component, One-Pot Synthesis of Indolizidines and Related Heterocycles via the [3+2] Cycloaddition of Nonstabilized Azomethine Ylides
  作者：William H. Pearson、Patrick Stoy、Yuan Mi

  DOI：10.1021/jo030334h

  日期：2004.3.1

  for a one-pot, three-component synthesis of indolizidines. The (2-azaallyl)stannanes tolerate enolizable hydrogens in these cycloadditions, while (2-azaallyl)silanes do not. The mechanism of the cycloaddition cascade is clarified by a series of control experiments. The same (2-azaallyl)stannanes may be transmetalated by n-butyllithium to generate 2-azaallyllithiums, which also may undergo a [3+2] cy

  通过分子内的N-烷基化/脱金属级联反应，可以由（2-氮杂烯丙基）锡烷和（2-氮杂烯丙基）硅烷产生不稳定的偶氮甲亚胺（即仅带有氢或烷基的那些）。所得的伊利德与贫电子或富电子双极性亲和性化合物进行[3 + 2]环加成反应，可高产率产生吲哚并立定和相关的1-氮杂[ m .3.0]双环烷烃体系。原位实验方案允许一锅，三组分合成吲哚并立定。在这些环加成反应中，（2-氮杂烯丙基）锡烷可耐受可氢化的氢，而（2-氮杂烯丙基）硅烷则不容许。一系列控制实验阐明了环加成级联反应的机理。相同的（2-氮杂烯丙基）锡烷可能被n重金属化-丁基锂生成2-氮杂烯丙基锂，它们也可能会经历[3 + 2]环加成反应/ N-烷基化级联反应形成吲哚并咪唑。
• Preparation of chiral building blocks for the enantioselective total synthesis of ent-kauranoids by the pig liver esterase-catalyzed asymmetric hydrolysis of a dialkyl malonate-type prochiral diester
  作者：Yuji Namiki、Tomohiro Fujii、Masahisa Nakada

  DOI：10.1016/j.tetasy.2014.01.019

  日期：2014.5

  The preparation of chiral building blocks, suitable for use in the enantioselective total synthesis of kauranoids and ent-kauranoids, is reported herein. The pig liver esterase-catalyzed asymmetric hydrolysis of dimethyl 3,3-dimethyl-2-methylenecyclohexane-1,2-dicarboxylate, a malonate-type prochiral diester, afforded the corresponding half-ester in 96% yield and with 99% enantiomeric excess. The absolute configuration of the half-ester was determined by X-ray crystallographic analysis of its derivative and its enantiodivergent transformations are also described herein. (C) 2014 Elsevier Ltd. All rights reserved.