Liquid crystalline optical film, compensating film for liquid crystal display and liquid crystal display
申请人:NIPPON OIL COMPANY, LIMITED
公开号:EP0758013B1
公开(公告)日:2000-10-11
US5855971A
申请人:——
公开号:US5855971A
公开(公告)日:1999-01-05
Nickel-Catalyzed Cross-Coupling of Alkyl Zinc Halides for the Formation of C(sp<sup>2</sup>)C(sp<sup>3</sup>) Bonds: Scope and Mechanism
作者:Vilasâ B. Phapale、Manuel Guisán-Ceinos、Elena Buñuel、Diegoâ J. Cárdenas
DOI:10.1002/chem.200901913
日期:2009.11.23
Optimal conditions for a general Ni‐catalysed Negishi cross‐coupling of alkyl zinc halides with aryl, heteroaryl and alkenyl halides have been determined. These conditions allow the reaction to take place smoothly, with low catalyst loading, and in the presence of a wide variety of functional groups to afford products in good yields at room temperature. DFT studies on the mechanism support the occurrence