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.
一系列α-氨基酯可以通过使用磺酰胺和DBU在一个原子经济的步骤中转化为磺酰氨基脲2。这种方法消除了传统程序所需的三步或四步序列。还利用新颖的合成方法制备了两个新的六元环类化合物3和4。