Novel Approach to 6-Chromanols via Photochemical Benzannulation of α-<i>exo</i>-Benzylidene-2-oxacyclohexylidene Chromium Complexes
作者:Bernd Weyershausen、Karl-Heinz Dötz
DOI:10.1055/s-1999-2572
日期:1999.2
6-Chromanols were prepared via photochemical benzannulation of the α-exo-benzylidene-2-oxacyclohexylidene chromium complex 2 with various alkynes. No benzannulation reaction, however, is observed under the thermal standard conditions.