Palladium(II)-Catalyzed Dehydrogenative Alkenylation of Cyclic Enaminones via the Fujiwara–Moritani Reaction
作者:Yi-Yun Yu、Micah J. Niphakis、Gunda I. Georg
DOI:10.1021/ol202677g
日期:2011.11.4
A new Pd(II)-catalyzed dehydrogenative alkenylation reaction involving two alkenes was developed. A variety of nonaromatic, cyclic enaminones were successfully coupled to primary and secondary alkenes yielding a series of unique 1,3-dienes. The generality of this transformation presents a useful strategy for directly cross-coupling alkenes and offers an attractive new approach to functionallze enaminones.
Biomimetic Aerobic CH Olefination of Cyclic Enaminones at Room Temperature: Development toward the Synthesis of 1,3,5-Trisubstituted Benzenes
作者:Yi-Yun Yu、Gunda I. Georg
DOI:10.1002/adsc.201300904
日期:2014.4.14
A green and mild protocol for the dehydrogenative olefination of cyclicenaminones was devised via palladium catalysis at roomtemperature using oxygen as the terminal oxidant. The synthetic utility of the olefinated cyclicenaminones afforded a series of unique 1,3,5‐trisubstituted benzenes via an unanticipated Diels–Alder tandem reaction. The broad substrate scope and good yields achieved with this