Tetrahedron

Synthesis and some properties of gem-dichlorocyclopropane carboxaldehyde acetals and cyclopropane carboxaldehyde acetals

AK Khusid, GV Kryshtal, VA Dombrovsky, VF Kucherov…

Index: Khusid,A.K. et al. Tetrahedron, 1977 , vol. 33, p. 77 - 84

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Citation Number: 13

Abstract

α, β-Unsaturated aldehyde acetals add: CCl2 (obtained in accordance with Makosza procedure) to form gem-dichlorocyclopropanecarboxaldehyde acetals (1) in high yields when the ratio of reactants is no less than 1: 4. The addition of: CCl2 to polyunsaturated aldehyde acetals in the above conditions proceeds regioselectively at double bonds enriched by electrons. Compounds 1 are reduced by sodium in liquid ammonia to give ...