The condensation of (chloromethyl)heterarenes with aromatic aldehydes was investigated, resulting in a simple and flexible general procedure for the synthesis of 2-aryl-1-chloro-1-heteroarylalkenes. The best reaction conditions were found to be heating in N,N-dimethylformamide in the presence of chlorotrimethylsilane as a promoter and water-scavenger.
研究了(
氯甲基)杂
芳烃与芳香醛的冷凝反应,结果建立了一种简单灵活的通用合成2-芳基-1-
氯-1-杂芳基烯烃的方法。最佳反应条件是在
N,N-二甲基甲酰胺中加热,并使用
氯化三甲基
硅烷作为促反应剂和脱
水剂。