作者:A. V. Lukashenko、D. V. Osipov、V. A. Osyanin、Yu. N. Klimochkin
DOI:10.1134/s1070428016120186
日期:2016.12
The reaction of o-(chloromethyl)phenols with enamino ketones afforded a series of 3-acyl- and 3-formyl-4H-chromenes as a result of cascade transformation including [4 + 2]-cycloaddition of enamino ketone to o-quinone methide generated in situ and subsequent elimination of secondary amine.