作者:Joachim Podlech、Alexander Taubinger、Dieter Fenske
DOI:10.1055/s-2008-1032079
日期:——
Ring opening of protected 3-aminoalkyl-substituted azetidin-2-ones with 0-, N-, or S-nucleophiles led to β,β'-diaminocarboxylic esters, amides, and thioesters, respectively. The reaction outcome is improved by addition of catalytic amounts of sodium azide. Reduction of the β-lactam amide moiety led to diamino alcohols.
受保护的 3-氨基烷基取代的氮杂环丁烷-2-酮与 0-、N-或 S-亲核试剂的开环分别产生 β,β'-二氨基羧酸酯、酰胺和硫酯。通过加入催化量的叠氮化钠改善反应结果。β-内酰胺酰胺部分的还原导致二氨基醇。