Expedient Syntheses of Sulfonylhydantoins and Two Six-Membered Analogues
作者:Andrew D. Campbell、Alan M. Birch
DOI:10.1055/s-2005-863735
日期:——
A range of α-amino esters can be turned into sulfonylhydantoins 2 in a single, atom-economic step using sulfamide and DBU. This procedure obviates the need for a three- or four-step sequence utilised by traditional procedures. Two new six-membered analogues 3 and 4 have also been prepared utilising novel synthetic protocols.