Citation: Zheng Ning LI, Zhi Xiu XU, Hui Lin CHEN, Zhuo ZHENG, Yun XU, Xin Quan HU. Cyclopropanation of 1, 1-Dichloro-4-methyl-1,3-pentadiene with Diazoacetate[J]. Chinese Chemical Letters, ;1997, 8(7): 559-562. shu

Cyclopropanation of 1, 1-Dichloro-4-methyl-1,3-pentadiene with Diazoacetate

Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023

Received Date: 24 February 1997

Several cyclopropanation catalysts for the synthesis of 3 (2,2-dichlorovinyl)-2,2.dimethylcyclopropanecarboxylates have been studied in this paper.Owing to electron deficiency of 1,1-dichloro-4-methyl-1,3-pentadiene,yield of this reaction is rather low compared with that of 2,5-dimethyl-2,4-pentadiene.Of all catalysts concerned,yield ranged from 25.1% to 47.2%.
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