New light on an old reaction: phase-transfer-catalyzed intramolecular cyclization of propargyl compounds for synthesis of indene derivatives and disubstituted benzo[b]furans
A variety of indene derivatives and disubstituted benzo[b]furans are readily prepared under the mild reaction condition from propargylic compounds by phase-transfer catalysis (PTC) instead of metal catalysis.
在温和的反应条件下,通过相转移催化(PTC)代替金属催化,由炔丙基化合物可轻松制得各种茚衍生物和二取代的苯并[ b ]呋喃。