Synthesis of the Apratoxin 2,4-Disubstituted Thiazoline via an Intramolecular Aza-Wittig Reaction
作者:Jiehao Chen、Craig J. Forsyth
DOI:10.1021/ol0342148
日期:2003.4.1
[reaction: see text] In developing a synthetic entry to the thiazoline-containing domain of the apratoxin natural products, we converted vicinal azido-thiolesters into 2,4-disubstituted thiazolines via sequential one-pot Staudinger reduction/aza-Wittig reaction. This method of de novo thiazoline formation provides a mild and versatile process that is particularly well suited to acid-sensitive substrates
[反应:见正文]在开发合成去甲毒素天然产物的含噻唑啉结构域的过程中,我们通过顺序一锅施陶丁格还原/氮杂-威蒂希反应,将邻位叠氮基硫酯转化为2,4-二取代的噻唑啉。这种从头形成噻唑啉的方法提供了一种温和而通用的工艺,特别适合酸敏感的底物。