E-mail: suweike@ z, jut. t? du. cn fl-Chlorovinylaldehydes are used widely in the synthesis of many natural products,'pharmaceutical3 and pesticide4 compounds such as triacylbenzene,' acridine? pyrimidine? pyrethoid: thiophene: quinoline6 and thiazepine.'In view of the considerable importance of these compounds, various methods have been developed for their preparation. The traditional methods involve the reaction of acetylenic compounds? a ...
