2-(2,2-Dimethylpropyl)benzyl alcohol | 51351-80-5

• 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: 2-(2,2-Dimethylpropyl)benzyl alcohol
• 英文别名: (neopentylphenyl)methyl alcohol；2-(2,2-Dimethylpropyl)benzenemethanol；[2-(2,2-dimethylpropyl)phenyl]methanol
• CAS: 51351-80-5
• 化学式: C₁₂H₁₈O
• 分子量: 178.274
• InChiKey: QUUCKZPDGRBXNY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 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：

  2-(2,2-Dimethylpropyl)benzyl alcohol 在 sodium hydroxide 、 chromium trioxide-pyridine complex 作用下， 以 1,4-二氧六环 、 甲醇 、 乙醚 、 溶剂黄146 、 苯 为溶剂， 反应 14.75h， 生成 2,2-dimethyl-tetralin
  参考文献：
  名称：

  Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene

  摘要：

  Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).

  DOI：

  10.1021/jo00093a014
• 作为产物：
  描述：

  2-(2,2-Dimethylpropyl)benzoic acid 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 5.0h， 以86%的产率得到2-(2,2-Dimethylpropyl)benzyl alcohol
  参考文献：
  名称：

  Intramolecular Reactivity of Arylcarbenes: Derivatives of o-Tolylcarbene

  摘要：

  Various CH(2)X groups have been attached to the ortho position of phenylcarbene. If 2'- or 3'-C-H bonds are present, as in 23 (X = Me), 71 (X = CMe(3)), and 58 (X = SiMe(3)), C-H insertion leading to five- or six-membered rings predominates in the gas phase and competes with intermolecular reactions in solution. The formation of benzocyclobutenes via insertion into 1'-C-H bonds is a very minor reaction path of 23 and 71. In contrast, 58 produces substantial amounts of the benzocyclobutene 59 by way of C-Si insertion, particularly in the gas phase. Insertion into the Si-Me bonds of 58 also occurs while the C-F bonds of 37 (X = CF3) and 50 (X = Fl are inert. In the gas phase, 37 and 50 give mainly benzocyclobutenes whereas intermolecular reactions prevail in solution. The effects of sensitization and of solvent polarity suggest that benzocyclobutenes arise from singlet arylcarbenes. The amount of carbene-carbene rearrangement decreases in the order 7 (X = H) > 37 (X = CF3) > 23 (X = Me); no rearrangement was observed with 50 (X = Fl, 58 (X = SiMe(3)), and 71 (X = CMe(3)).

  DOI：

  10.1021/jo00093a014

文献信息

• Method for producing cyclopropanecarboxylates
  申请人：——

  公开号：US20020052525A1

  公开（公告）日：2002-05-02

  There is provided a method for producing a cyclopropanecarboxylate of formula (1): 1 which comprises contacting a cyclopropanecarboxylate of formula (2): 2 with a monohydroxy compound of formula (3): R 7 OH  (3) in the presence of a lithium compound of formula (4): R 8 OLi  (4), wherein R 1 , R 2 , R 3 , R 4 and R 5 each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted aryl group; R 6 represents an alkyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group; R 7 and R 8 do not simultaneously represent the same and each independently represent a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.

  提供了一种生产公式（1）环丙烷甲酸酯的方法： 1 该方法包括接触 一种公式（2）的环丙烷甲酸酯： 2 与一种公式（3）的单羟基化合物： R 7 OH  (3) 在公式（4）的锂化合物存在下： R 8 OLi  (4)， 其中R 1 ，R 2 ，R 3 ，R 4 和R 5 每个独立代表 一个氢原子，一个卤素原子， 一个取代或不取代的烷基团， 一个取代或不取代的烯丙基团，或 一个取代或不取代的芳基团； R 6 代表一个有1到10个碳原子的烷基团或 一个取代或不取代的苯基团； R 7 和R 8 不同时代表相同的，且每个独立代表 一个取代或不取代的烷基团，或 一个取代或不取代的芳基团。
• Process for producing cyclopropanecarboxylates
  申请人：——

  公开号：US20020151741A1

  公开（公告）日：2002-10-17

  There is disclosed a process process for producing a cyclopropanecarboxylate of formula (1): 1 which process comprises reacting cyclopropanecarboxylic acid of formula (2): 2 with a monohydroxy compound of formula (3): R 6 OH  (3), in the presence of a catalyst compound comprising an element of to Group 4 of the Periodic Table of Elements.

  披露了一种制备公式(1)所示的环丙烷甲酸酯的方法：1该方法包括将公式(2)所示的环丙烷甲酸与公式(3)所示的单一羟基化合物反应：R6OH  (3)，在含有元素周期表第4族元素的催化剂化合物存在下。
• Process for Producing 3-(2-Cyano-1-propenyl)-2,2- Dimethylcyclopropanecarboxylic Acid or Salt Thereof
  申请人：Uekawa Toru

  公开号：US20120016150A1

  公开（公告）日：2012-01-19

  A process for producing comprising reacting a 3-formyl-2,2-dimethylcyclopropanecarboxylate and propionitrile in the presence of a base to obtain 3-(2-cyano-1-propenyl)-2,2-dimethylcyclopropanecarboxylic acid or its salt.

  生产过程包括在碱的存在下，通过将3-甲酰基-2,2-二甲基环丙基羧酸酯和丙腈反应，得到3-(2-氰丙烯基)-2,2-二甲基环丙基羧酸或其盐。
• Process for the preparation of carboxylic acid esters
  申请人：Souda Hiroshi

  公开号：US20050113581A1

  公开（公告）日：2005-05-26

  There is provided a process for preparing a carboxylic acid ester of formula (3): R 2 COOR 1 (3) wherein R 1 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, and R 2 is an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted, a heteroaryl which may be substituted, an aralkyl group which may be substituted, or a heteroarylalkyl group which may be substituted, which process is characterized by the steps of reacting a monohydroxy compound of formula (1): R 1 OH   (1) wherein R 1 is as defined above, with a zirconium compound of formula (6): Zr(OR 8 ) 4 (6) wherein R 8 is an alkyl group or an aryl group which may be substituted and is not the same as R 1 , to prepare a zirconium catalyst, and reacting a carboxylic acid of formula (2): R 2 COOH   (2) wherein R 2 is as defined above, with the monohydroxy compound of formula (1) in the presence of the zirconium catalyst.

  提供了一种制备化学式为(3)的羧酸酯的方法：R2COOR1 (3)，其中R1是可以被取代的烷基、可以被取代的烯基、可以被取代的炔基、可以被取代的芳基或可以被取代的杂芳基烷基，R2是可以被取代的烷基、可以被取代的烯基、可以被取代的炔基、可以被取代的芳基、可以被取代的杂芳基、可以被取代的芳基烷基或可以被取代的杂芳基烷基。该方法的特征在于将化学式为(1)的单羟基化合物：R1OH (1)（其中R1如上定义）与化学式为(6)的锆化合物反应：Zr(OR8)4 (6)（其中R8是可以被取代的烷基或芳基，且不同于R1），制备锆催化剂，然后在锆催化剂存在的情况下，将化学式为(2)的羧酸：R2COOH (2)（其中R2如上定义）与化学式为(1)的单羟基化合物反应。
• METHOD FOR PRODUCING CYANOALKENYLCYCLOPROPANECARBOXYLIC ACID SALT
  申请人：Komoto Ichiro

  公开号：US20120310003A1

  公开（公告）日：2012-12-06

  A method for producing a salt of an amine with a cyanoalkenylcyclopropanecarboxylic acid, the method comprising a first step of mixing a carboxylic acid compound represented by formula (2C) and at least one amine selected from the group consisting of primary amines and secondary amines in an organic solvent; a second step of depositing a salt of the amine with a cyanoalkenylcyclopropanecarboxylic acid represented by formula (2) from the mixture obtained in the first step; and a third step of recovering the salt deposited in the second step; wherein, R represents an alkyl group optionally having a substituent or a halogen atom.

  一种使用氰基烯丙基环丙烷羧酸制备胺盐的方法，该方法包括以下步骤：第一步，在有机溶剂中混合由式（2C）表示的羧酸化合物和从一次胺和二次胺组成的群体中选择的至少一种胺；第二步，从第一步得到的混合物中沉淀由式（2）表示的氰基烯丙基环丙烷羧酸的胺盐；第三步，回收第二步沉淀的盐；其中，R代表一个烷基，可选地具有取代基或卤素原子。