Palladium-Catalyzed Stereoselective Synthesis of (E)-Stilbenes via Organozinc Reagents and Carbonyl Compounds
作者:Jin-Xian Wang、Kehu Wang、Lianbiao Zhao、Hongxia Li、Ying Fu、Yulai Hu
DOI:10.1002/adsc.200606016
日期:——
In the presence of a catalytic amount of PdCl2(PPh3)2 and a silylating agent, organozinc halides reacted with carbonylcompounds to give the corresponding (E)-stilbenes in good to excellent yields under mild conditions. The reaction mechanism is briefly discussed.
Compatibilized blends of polyphenylene ether resin and polyamide resin containing aromatic phosphorous-containing compounds are disclosed wherein the compatibilizing agent is selected from polycarboxylic acids and functionalized polyphenylene ether resins. The compositions may be rendered flame retardant when the composition is comprised of a phosphorous-containing compound in an amount sufficient to confer flame retardancy thereto. Reinforced compositions are also disclosed.