Tandem Migration–Carboalkoxylation of <i>o</i>-Isocyanophenyl Acetals Leading to Benzoxazoles
作者:Takashi Okitsu、Kenta Nagase、Nobuhiko Nishio、Akimori Wada
DOI:10.1021/ol203175a
日期:2012.2.3
An efficient approach to benzoxazoles via tandem migration carboalkoxylation of o-isocyanophenyl acetals has been developed. Both a Lewis acid and base are essential for this reaction, and the BF3 center dot OEt2/2,4,6-collidine combination is the best choice for cooperative transformation.