The simple and efficient diastereoselective synthesis of stable 1,4-diionic organosulfur derivatives by the three-component reaction of dialkyl acetylenedicarboxylates, elemental sulfur, and N-heteroaromatic compounds is reported.
Microwave-mediated stereocontrolled annulations of diazo(aryl)methyl(diaryl)phosphine oxides with pyridinium 1,4-zwitterionic thiolates
作者:Simin Sun、Yuliang Wei、Jiaxi Xu
DOI:10.1039/d2cc05483c
日期:——
Chemoselective annulations of phosphoryl carbenes generated from diazo(aryl)methyl(diaryl)phosphine oxides with pyridinium 1,4-zwitterionic thiolates were performed under microwave irradiation, affording 1-diarylphosphoryl-1H-benzo[c]thiopyran derivatives via [3+3] annulation and indolizine derivatives via ([1+5]-1) annulation with P-Cope elimination as the key step. The annuloselectivity was controlled