1392239-20-1Relevant articles and documents
Synthesis of 2 H-Chromenes via Unexpected [4 + 2] Annulation of Alkynyl Thioethers with o-Hydroxybenzyl Alcohols
Bu, Hao-Zhen,Li, Hang-Hao,Luo, Wen-Feng,Luo, Chen,Qian, Peng-Cheng,Ye, Long-Wu
, p. 648 - 652 (2020)
A novel Br?nsted acid-catalyzed reaction of alkynyl thioethers with o-hydroxybenzyl alcohols via an unexpected formal [4 + 2] annulation has been developed. This metal-free protocol leads to the facile and practical synthesis of valuable polysubstituted 2