A straightforward and an efficient method for the synthesis of 2H‐pyrans via the one‐pot, reaction of alkyl bromides, carbon disulfide, secondary amines, activated acetylenes and isocyanides under solvent‐free conditions without using any catalyst at room temperature is reported. The method offers several advantages including high yields of products and an easy work‐up procedure. J. Heterocyclic Chem
据报道,在室温下不使用任何催化剂的情况下,通过单锅反应,烷基
溴,
二硫化碳,仲胺,活化的
乙炔和
异氰酸酯的单锅反应,是一种简单有效的合成2 H-
吡喃的方法。该方法具有许多优点,包括产品的高产量和简便的后处理程序。J.杂环化学。(2011)。