Various aromatic and heterocyclic oxazolines were directly converted to respective cyanomethyl esters with pyridinium hydrobromide perbromide in water at room temperature.
Cyanoacetic Acid as a Masked Electrophile: Transition-Metal-Free Cyanomethylation of Amines and Carboxylic Acids
作者:Hongxiang Wang、Ying Shao、Hao Zheng、Hanghang Wang、Jiang Cheng、Xiaobing Wan
DOI:10.1002/chem.201502733
日期:2015.12.7
Using cyanoaceticacid as a maskedelectrophile, a new cyanomethylation reaction of amines and carboxylicacids was developed, producing a variety of α‐aminonitriles and cyanomethyl esters with good yields and excellent functionality tolerance. This protocol features simple manipulation, inexpensive reagents, and a wide substrate scope. Iodoacetonitrile was generated in situ from the iodination–decarboxylation