引用本文:
李争宁, 陈惠麟, 于振远, 郭和夫. 四甲基乙烯环丙烷化反应的催化研究[J]. 应用化学,
1992, 9(3): 102-105.
Citation: Li Zhengning, Chen Huilin, Yu Zhenyuan, Guo Hefu. CATALYTIC CYCLOPROPANATION OF TETRAMETHYL ETHYLENE[J]. Chinese Journal of Applied Chemistry, 1992, 9(3): 102-105.
Citation: Li Zhengning, Chen Huilin, Yu Zhenyuan, Guo Hefu. CATALYTIC CYCLOPROPANATION OF TETRAMETHYL ETHYLENE[J]. Chinese Journal of Applied Chemistry, 1992, 9(3): 102-105.
四甲基乙烯环丙烷化反应的催化研究
English
CATALYTIC CYCLOPROPANATION OF TETRAMETHYL ETHYLENE
Abstract:
Cu(Salad)2, Cu(gly)2H2O, Cu(o-NH2C6H4CO2)2, Cu(ClO4)26H2O, Cu(CH3CN)4ClO4 were use first time for catalyzing cyclopropanation of ethyl diazoaeetate (EDA) with tetramethyl ethylene (TME). Cu(Ⅱ) amino acid salts showed no catalytic activity, when they were used directly. High catalytic activity appeared only cohen they were pre-reduccd to Cu(Ⅰ) High TME/EDA ratio, high EDA/Cat ratio, longer addition period of EDA-TME mixture, and high reaction temperature benefited the product yield. Cu(salad)2 and Cu(gly)2H2O showed higher catalytic efficiency for the reaction under suitable conditions.
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Key words:
- copper catalyst
- / tetramethyene
- / ethyl diazoacetate
- / cyclopropanation
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