作者:John H. Jones、Michael J. Witty
DOI:10.1039/p19790003203
日期:——
The cyclodehydration of benzyloxycarbonylamino-acids by successive treatment with acid chloride-forming reagents and triethylamine has been shown to give 2-benzyloxyoxazol-5(4H)-ones, not N-benzyloxycarbonylaziridinones as reported previously. The 2-benzyloxyoxazol-5(4H)-ones, which are the first 2-alkoxyoxazol-5(4H)-ones to be described, are more easily attacked by nucleophiles at position 5 and less
通过用酰氯形成试剂和三乙胺的连续处理,苄氧基羰基氨基酸的环脱水作用已显示出产生2-苄氧基恶唑-5(4H)-1,而不是如先前报道的N-苄氧基羰基氮丙啶酮。2- benzyloxyoxazol-5(4 ħ) -酮,其为第一2- alkoxyoxazol-5(4 ħ) -酮将要描述的,更容易被亲核试剂在5位攻击和在4位上不容易离子化比其众所周知的2-芳基和2-烷基类似物。