Verma, Braham S.; Dhindsa, Kuldip Singh; Sangwan, Naresh K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1993, vol. 32, # 2, p. 239 - 243
Verma, Braham S.; Dhindsa, Kuldip Singh; Sangwan, Naresh K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1993, vol. 32, # 2, p. 239 - 243
Tandem Alkyne Hydroacylation and Oxo-Michael Addition: Diastereoselective Synthesis of 2,3-Disubstituted Chroman-4-ones and Fluorinated Derivatives
作者:Xiang-Wei Du、Levi M. Stanley
DOI:10.1021/acs.orglett.5b01447
日期:2015.7.2
Tandem reactions involving Rh-catalyzed intermolecular hydroacylations of alkynes with salicylaldehydes followed by intramolecular oxo-Michael additions are described for the diastereoselective synthesis of 2,3-disubstituted chroman-4-ones. The tandem hydroacylation/oxo-Michael additions occur to form 2,3-disubstituted chroman-4-ones in high yields from a range of 1,2-disubstituted acetylenes and substituted