An efficient method for the construction of sulfonylmethyl 1H-indenes via Cu(I)-mediated sulfonyl radical-enabled 5-exo-trig cyclization of alkenyl aldehydes has been developed for the first time. Mechanistic studies indicated that a radical addition–cyclization–elimination (RACE) process might be involved. The reaction features a relatively broad substrate scope, good annulation efficiency, and varying
首次开发了通过
铜(I)介导的烯基醛的5- exo-trig环化的磺酰基甲基1 H-
茚的有效方法。机理研究表明,可能涉及彻底的加成-环化-消除(RACE)过程。该反应具有相对较宽的底物范围,良好的环化效率和变化的官能团耐受性。