Novell synthesis of α-amino carboxamides and their related compounds via α-oxo sulfones starting from 2,2-disulfonyloxiranes
2-(Methylsulfonyl)-2-(p-tolylsulfonyl)oxiranes 1 are easily prepared by the condensation of methylthiomethyl p-tolyl sulfone (MT-sulfone) with aldehydes and the subsequent oxidation with MCPBA. They smoothly reacted with 2 molar amounts of primary or seco