Nucleophilic Ring Opening of Cyclic 1,2-Sulfites with Nitrogen Nucleophiles. A Route to Enantiopure Benzylic Amino Alcohols.
作者:Kirsten Nymann、Saravanapavan Mylvaganam、John S. Svendsen、Inamur Rahaman Laskar、Nirmalendu Ray Chaudhuri、Kirsi Ranta、Teófilo Rojo
DOI:10.3891/acta.chem.scand.52-1060
日期:——
The reaction between cyclic 1,2-sulfites and two imide and two sulfonamide nucleophiles has been Investigated in order to develop a procedure for the enantioselective preparation of N-protected vicinal amino alcohols. The results show that both imide and sulfonamide anions react with cyclic sulfites, yielding the desired products. In some cases the regioselectivities are low, and for the sulfonamides products originating from nucleophilic addition to the sulfite sulfur are observed.