(3S)-1-benzyloxy-2,2-dimethylpentane-3,5-diol | 152426-81-8

• 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: (3S)-1-benzyloxy-2,2-dimethylpentane-3,5-diol
• 英文别名: (S)-5-benzyloxy-4,4-dimethyl-1,3-pentanediol；(3S)-1-benzyloxy-2,2-dimethyl-pentane-3,5-diol；(3S)-4,4-dimethyl-5-phenylmethoxypentane-1,3-diol
• CAS: 152426-81-8
• 化学式: C₁₄H₂₂O₃
• 分子量: 238.327
• InChiKey: AJNKDONNDMGMBB-ZDUSSCGKSA-N

物化性质

• 沸点：
  389.1±32.0 °C(Predicted)
• 密度：
  1.068±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  49.7
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (3S)-1-benzyloxy-2,2-dimethylpentane-3,5-diol 在 palladium on activated charcoal 四丙基高钌酸铵 、 草酰氯 、 4 A molecular sieve 、 camphor-10-sulfonic acid 、 氢气 、 二甲基亚砜 、 N-甲基吗啉氧化物 、 三乙胺 作用下， 以 乙醚 、 乙醇 、 二氯甲烷 为溶剂， -70.0~23.0 ℃ 、101.33 kPa 条件下， 反应 19.5h， 生成 (4S)-4-(2-methyl-3-oxohept-6-en-2-yl)-2,2-dimethyl[1,3]dioxane
  参考文献：
  名称：

  Efficient Chiral Pool Synthesis of the C1-C6 Fragment of Epothilones

  摘要：

  描述了一种从易得的手性原料(-)-泛内酯出发，高效合成紫杉醇C1-C6片段的手性池合成方法。

  DOI：

  10.1055/s-2004-834936
• 作为产物：
  描述：

  D-(-)-泛酰内酯 在 正丁基锂 、 硼烷四氢呋喃络合物 、 potassium tert-butylate 、 4-甲基苯磺酸吡啶 、 二异丁基氢化铝 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 正己烷 、 二氯甲烷 、 甲苯 为溶剂， 反应 39.0h， 生成 (3S)-1-benzyloxy-2,2-dimethylpentane-3,5-diol
  参考文献：
  名称：

  Efficient Chiral Pool Synthesis of the C1-C6 Fragment of Epothilones

  摘要：

  描述了一种从易得的手性原料(-)-泛内酯出发，高效合成紫杉醇C1-C6片段的手性池合成方法。

  DOI：

  10.1055/s-2004-834936

文献信息

• Synthesis of 1,3-Amino Alcohols, 1,3-Diols, Amines, and Carboxylic Acids from Terminal Alkynes
  作者：Mingshuo Zeng、Seth B. Herzon

  DOI：10.1021/acs.joc.5b01220

  日期：2015.9.4

  catalytic intermediates. Here we show that catalyst 2 can be employed to convert propargylic alcohols to 1,3-diols in high yield and with retention of stereochemistry at the propargylic position. The method is also amenable to propargylic amine derivatives, thereby establishing a route to enantioenriched 1,3-amino alcohol products. We also report the development of formal anti-Markovnikov reductive amination

  的半夹心钌络合物1 - 3激活朝向温和的条件下的反Markovnikov水合和水合还原末端炔烃。据信这些反应是通过向金属亚乙烯基中间体（4）中加水来进行的。由于起始原料和催化中间体的分解，通过金属亚乙烯基途径将炔丙醇官能化是具有挑战性的。在这里我们展示了催化剂2可以用于将炔丙基醇高产率地转化为1，3-二醇，并且保留在炔丙基位置的立体化学。该方法也适用于炔丙基胺衍生物，从而建立了对映体富集的1，3-氨基醇产物的途径。我们还报告了正式的反马尔科夫尼科夫还原胺化和氧化水化反应的发展，以分别从末端炔烃中获得线性胺和羧酸。这种化学方法扩大了可以通过实用且高产的金属催化方法从末端炔烃制备的产品范围。
• C1-C6-epothilone fragments and process for the production of C1-C6-fragments of epothilones and derivatives thereof
  申请人：Schering AG

  公开号：US20030176710A1

  公开（公告）日：2003-09-18

  This invention describes C 1 -C 6 -epothilone fragments and an efficient process for the production of C 1 -C 6 -fragments of epothilones and derivatives thereof.

  这项发明描述了C1-C6-依波酮片段以及一种高效的生产依波酮及其衍生物的C1-C6片段的方法。
• Kalesse, Markus; Quitschalle, Monika; Claus, Eckhard, European Journal of Organic Chemistry, 1999, # 11, p. 2817 - 2823
  作者：Kalesse, Markus、Quitschalle, Monika、Claus, Eckhard、Gerlach, Kai、Pahl, Axel、Meyer, Hartmut H.

  DOI：——

  日期：——
• Direct Catalytic Asymmetric Aldol Reaction
  作者：Naoki Yoshikawa、Yoichi M. A. Yamada、Jagattaran Das、Hiroaki Sasai、Masakatsu Shibasaki

  DOI：10.1021/ja990031y

  日期：1999.5.1

  The direct catalytic asymmetric aldol reaction using aldehydes and unmodified ketones is described for the first time herein. This reaction was first found to be promoted by 20 mol % of anhydrous (R)-LLB (L = lanthanum, L = lithium, B = (R)-binaphthol moiety) at -20 OC, giving a variety of aldol products in ee's ranging from 44 to 94%. This asymmetric reaction has been greatly improved by developing a new heteropolymetallic asymmetric catalyst [(R)-LLB, KOH, and H2O]. Using 3-8 mol % of this catalyst, a variety of direct catalytic asymmetric aldol reactions were again found to proceed smoothly, affording aldol products in ee's ranging from 30 to 93% and in good to excellent yields. Interestingly, the use of this new heteropolymetallic asymmetric catalyst has realized a diastereoselective and enantioselective aldol reaction using cyclopentanone for the first time. It is also noteworthy that a variety of aldehydes, including hexanal, can be utilized for the current direct catalytic asymmetric aldol reaction. Chiral aldehydes containing alpha-hydrogen including (S)-hydrocinnamaldehyde-alpha-d have been found to produce the corresponding aldol products with negligible racemization (0-4%) at the a-position One of the aldol products has been successfully converted to the key synthetic intermediates of epothilone A and bryostatin 7. The possible structure of the heteropolymetallic catalyst is also discussed. Finally, mechanistic studies have revealed a characteristic reaction pathway, namely that the reaction is kinetically controlled and the rate-determining step is the deprotonation of the ketone. This is consistent with the fact that the reaction rate is independent of the concentration of the aldehyde.
• Synthesis of the C1C9 segment of epothilons
  作者：Eckhard Claus、Axel Pahl、Peter G. Jones、Hartmut M. Meyer、Markus Kalesse

  DOI：10.1016/s0040-4039(96)02493-8

  日期：1997.2

  The C1-C9 segment of epothilons was generated by an aldol reaction between chiral aldehyde 3 and ethyl ketone 4. Removal of the TBS protecting groups and debenzylation generated spiro ketal 13 which was analyzed by X-ray crystallography. (C) 1997 Elsevier Science Ltd.