- Pd(II)-catalyzed sequential C-C/C-O bond formations: a new strategy to construct trisubstituted furans.
Pd(II)-catalyzed sequential C-C/C-O bond formations: a new strategy to construct trisubstituted furans.
Organic letters (2013-04-02)
Meifang Zheng, Liangbin Huang, Wanqing Wu, Huanfeng Jiang
PMID23540567
ABSTRACT
Palladium-catalyzed oxidative difunctionalization of enol ethers with 1,3-dicarbonyl compounds to construct trisubstituted furans in one step under mild conditions is described. The reaction is thought to proceed through a C-C bond formation along with a C-O bond closing the ring structure. Oxygen is the sole oxidant regenerating the Pd(II) catalyst.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
Palladium, extent of labeling: 5 wt. % loading (dry basis), matrix activated carbon, wet support, Degussa type E105CA/W
Sigma-Aldrich
Palladium, evaporation slug, diam. × L 0.9 cm × 1.2 cm, 99.95% trace metals basis
Sigma-Aldrich
Palladium, evaporation slug, diam. × L 0.6 cm × 0.6 cm, 99.95% trace metals basis