1-戊醇,2-环亚丙基-4-甲基- | 139166-92-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 1-戊醇,2-环亚丙基-4-甲基-
• 英文名称: 2-cyclopropylidene-4-methyl-1-pentanol
• 英文别名: 2-Cyclopropylidene-4-methylpentan-1-ol
• CAS: 139166-92-0
• 化学式: C₉H₁₆O
• 分子量: 140.225
• InChiKey: OKUQFPJXWMVIGY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1-戊醇,2-环亚丙基-4-甲基- 在 titanium(IV) isopropylate 、 叔丁基过氧化氢 、 (-)-diethyl tartrate 作用下， 以 二氯甲烷 为溶剂， 反应 48.0h， 生成 (R)-(-)-2-(hydroxymethyl)-2-isobutylcyclobutanone 、 (S)-(+)-2-(hydroxymethyl)-2-isobutylcyclobutanone
  参考文献：
  名称：

  A concise and enantioselective approach to cyclobutanones by tandem asymmetric epoxidation and enantiospecific ring expansion of cyclopropylidene alcohols. An enantiocontrolled synthesis of (+)- and (-)-.alpha.-cuparenones

  摘要：

  A tandem Katsuki-Sharpless asymmetric epoxidation and enantiospecific ring expansion of 2-alkyl(or 2-aryl)-2-cyclopropylideneethanols (1a-i) afforded chiral 1-alkyl(or 1-aryl)-1-(hydroxymethyl)cyclobutanones (3a-i) in high yields and high enantiomeric excess. These compounds are potentially valuable synthons for the enantioselective creation of the quaternary carbons. Hence, this enabled us to accomplish a concise and enantioselective total synthesis of both (+)- and (-)-alpha-cuparenones (11).

  DOI：

  10.1021/jo00032a021
• 作为产物：
  描述：

  1-(tert-butyldiphenylsiloxy)-2-cyclopropylidene-4-methylpentane 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 以98%的产率得到1-戊醇,2-环亚丙基-4-甲基-
  参考文献：
  名称：

  A concise and enantioselective approach to cyclobutanones by tandem asymmetric epoxidation and enantiospecific ring expansion of cyclopropylidene alcohols. An enantiocontrolled synthesis of (+)- and (-)-.alpha.-cuparenones

  摘要：

  A tandem Katsuki-Sharpless asymmetric epoxidation and enantiospecific ring expansion of 2-alkyl(or 2-aryl)-2-cyclopropylideneethanols (1a-i) afforded chiral 1-alkyl(or 1-aryl)-1-(hydroxymethyl)cyclobutanones (3a-i) in high yields and high enantiomeric excess. These compounds are potentially valuable synthons for the enantioselective creation of the quaternary carbons. Hence, this enabled us to accomplish a concise and enantioselective total synthesis of both (+)- and (-)-alpha-cuparenones (11).

  DOI：

  10.1021/jo00032a021

文献信息

• A concise and enantioselective approach to cyclobutanones by tandem asymmetric epoxidation and enantiospecific ring expansion of cyclopropylidene alcohols. An enantiocontrolled synthesis of (+)- and (-)-.alpha.-cuparenones
  作者：Hideo Nemoto、Hiroki Ishibashi、Masatoshi Nagamochi、Keiichiro Fukumoto

  DOI：10.1021/jo00032a021

  日期：1992.3

  A tandem Katsuki-Sharpless asymmetric epoxidation and enantiospecific ring expansion of 2-alkyl(or 2-aryl)-2-cyclopropylideneethanols (1a-i) afforded chiral 1-alkyl(or 1-aryl)-1-(hydroxymethyl)cyclobutanones (3a-i) in high yields and high enantiomeric excess. These compounds are potentially valuable synthons for the enantioselective creation of the quaternary carbons. Hence, this enabled us to accomplish a concise and enantioselective total synthesis of both (+)- and (-)-alpha-cuparenones (11).