Citation: Qiao Sheng HU, Chang Ming HU. Synthesis of Ethyl 3-Fluoroalkyl-3-Halo Acrylate With CH₂N₂[J]. Chinese Chemical Letters, ;1997, 8(8): 673-676. shu

Synthesis of Ethyl 3-Fluoroalkyl-3-Halo Acrylate With CH₂N₂

Qiao Sheng HU ^a,b ,
Chang Ming HU ^a,b

a Laboratory of Organofluorine Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, 200032;
b Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, 200032

Received Date: 17 December 1997

Fund Project: We thank the National Natural Science Foundation of China for financial support (No.29632003).

When ethyl 3-fluoroalkyl-3-haloacrylate was treated with excess CH₂N₂,1-methyl-3-ethoxycarbonyl-4-fluoroalkylpyr-azoles(3) and 1-methyl-5-ethoxycarbonyl-4-fluoroalkylpyra-zoles(4) were obtained with a ratio of 90-95:10-5 in good yield.
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