Cl3CCN/PPh3 and CBr4/PPh3: two efficient reagent systems for the preparation of N-heteroaromatic halides
摘要:
Cl3CCN/PPh3 and CBr4/PPh3 are two highly reactive reagent systems for the conversion of N-heteroaromatic hydroxy compounds into N-heteroaromatic chlorides or bromides in moderate to excellent yields under mild and acid-free conditions. (C) 2011 Elsevier Ltd. All rights reserved.