Synthesis of α-Hydrazino Ketones via Regio- and Stereoselective Electrophilic Amination of Manganese Enolates and Enamines
作者:Gabriella Dessole、Luca Bernardi、Bianca F. Bonini、Elena Capitò、Mariafrancesca Fochi、Raquel P. Herrera、Alfredo Ricci、Gérard Cahiez
DOI:10.1021/jo049152t
日期:2004.11.1
synthesis of α-hydrazino ketones is described. Manganese enolates and manganese enamines derived from ketones and from the corresponding N-sulfinylimines react with azodicarboxylate esters (DTBAD and DEAD) in a regioselective fashion to afford in good to excellent yields the kinetic α-hydrazino ketones as sole or highly prevalent products. When enantiopure N-sulfinyl manganese enamines were used the stereoselectivity