Practical and highly stereoselective technology for preparation of enantiopure sulfoxides and sulfinamides utilizing activated and functionally differentiated N-sulfonyl-1,2,3-oxathiazolidine-2-oxide derivatives
作者:Zhengxu Han、Dhileepkumar Krishnamurthy、Paul Grover、Q. Kevin Fang、Xiping Su、H. Scott Wilkinson、Zhi-Hui Lu、Daniel Magiera、Chris H. Senanayake
DOI:10.1016/j.tet.2005.03.122
日期:2005.6
A simple, general, and practical technology to prepare enantiopure 1,2,3-oxathiazolidine-2-oxide derivatives using chiral aryl N-sulfonyl aminoalcohol derivatives and thionyl chloride is reported. The versatility of these novel chiral building blocks (MIOO and TMPOO), was exemplified by the expedient production of a variety of unique chiral sulfoxides and valuable chiral sulfinamides in excellent yields
Stereoselective Synthesis of Chiral α,β-Unsaturated tert-Butyl Sulfoxides Derivatives by the Horner-Wadsworth-Emmons Reaction
作者:Zhihua Sun、Bo Liu、Lingyan Chen
DOI:10.3987/com-16-13468
日期:——
A series of chiral alpha,beta-unsaturated tert-butyl sulfoxides derivatives was synthesized by the Horner-Wadsworth-Emmons reaction in good (E)/(Z) ratios. The enantioselectivity up to 89% and the yield up to 90% were achieved. These sulfoxides could be important intermediates in asymmetric synthesis.