作者:Stefan G. Koenig、Charles P. Vandenbossche、Hang Zhao、Patrick Mousaw、Surendra P. Singh、Roger P. Bakale
DOI:10.1021/ol802482d
日期:2009.1.15
Imidoyl chlorides, generated from secondary acetamides and oxalylchloride, can be harnessed for a selective and practical deprotection sequence. Treatment of these intermediates with 2 equiv of propylene glycol and warming enables the rapid release of aminehydrochloride salts in good yields. Notably, the reaction conditions are mild enough to allow for a swift deprotection with no observed epimerization