Palladium-Catalyzed Heck-Type Coupling via C–N Cleavage
作者:Bainian Feng、Weizheng Fan、Faming Liu
DOI:10.1055/s-0034-1379911
日期:——
A palladium-catalyzed Heck-type coupling method between arenes and ketone Mannich bases via C-N cleavage to synthesize chalcones is reported. This protocol offers good yields and tolerates a broad range of functional groups. Based on the extensive experimental data, we propose a plausible coulping mechanism.
Pd-Catalyzed C-H Olefination of (Hetero)Arenes by Using Saturated Ketones as an Olefin Source
作者:Yaping Shang、Xiaoming Jie、Jun Zhou、Peng Hu、Shijun Huang、Weiping Su
DOI:10.1002/anie.201208627
日期:2013.1.21
Tolerant: By using Pd(OAc)2/PCy3 as a catalyst, both electron‐rich aromatic heterocycles and electron‐deficient fluorobenzenes undergo the dehydrogenative cross‐coupling with (hetero)aryl ethyl ketones in good yields. A broad range of functional groups is tolerated, thus providing a general method for the facile syntheses of chalcones or heterocyclic chalcone analogues. Furthermore, dialkyl ketones can also