LiCl-Mediated Preparation of Highly Functionalized Benzylic Zinc Chlorides
作者:Albrecht Metzger、Matthias A. Schade、Paul Knochel
DOI:10.1021/ol7030697
日期:2008.3.1
In the presence of zinc dust (1.5-2.0 equiv) and LiCl (1.5-2.0 equiv), various benzylic chlorides bearing functional groups (iodide, cyanide, ester, ketone) are smoothly converted at 25 degrees C to the corresponding zinc reagents without homo-coupling (<5%). The utility of these benzyliczinc reagents is demonstrated by a short synthesis of papaverine.