methyl (1S,3S,4S)-3-chloro-4-hydroxycyclohexane-1-carboxylate | 94904-76-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (1S,3S,4S)-3-chloro-4-hydroxycyclohexane-1-carboxylate
• CAS: 94904-76-4
• 化学式: C₈H₁₃ClO₃
• 分子量: 192.642
• InChiKey: NYRIYGIFPWIWCD-ACZMJKKPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  cis-3,4-Epoxycyclohexanecarboxylic acid methyl ester 在 叔丁基过氧化氢 、 四氯化钛 作用下， 以 二氯甲烷 为溶剂， 反应 0.67h， 以90%的产率得到methyl c-4-chloro-t-3-hydroxy-r-1-cyclohexanecarboxylate
  参考文献：
  名称：

  Regiochemical control of the ring-opening of 1,2-epoxides by means of chelating processes. 2. Synthesis and reactions of the cis- and trans-oxides of 4-[(benzyloxy)methyl]cyclohexene, 3-cyclohexenemethanol, and methyl 3-cyclohexenecarboxylate

  摘要：

  The synthesis of the diastereoisomeric epoxides cis-1b-d and trans-2b-d and the products of their ring-opening by various nucleophiles are described. The results of the ring-openings of the trans-epoxides 2b-d can be rationalized by combining stereoelectronic and conformational arguments. However, the regioselectivity of the ring-openings of the cis-epoxides 1b-d can, in principle, be influenced by the chelation of a metal ion by the oxygen atom of the epoxy group and that of the substituent on the 4-position. The results of the reactions of the cis-epoxides 1b-d indicate that, to some degree, chelation is indeed a factor. How important a factor it is is dependent both on the reaction conditions and on the concentration and nature of the metal ion. In the ring-openings of the cis-epoxides 1b and 1d, chelation seems to be a larger factor than it is in the ring-openings of cis-epoxide 1c. However, in no case is chelation as large a factor as it was in the ring-openings of the cis-epoxide 1a, which was studied earlier. On the other hand, the autocatalyzed methanolysis, under neutral conditions, of epoxy acid 1e, followed by CH2N2 methylation of the crude product, afforded a mixture of the two regioisomeric hydroxy ethers in which the C-2-type compound predominates. This result suggests that intramolecular hydrogen bonding may determine the reactive conformation of 1e.

  DOI：

  10.1021/jo00031a018