Selective Hydrogenation of Benzophenones to Benzhydrols. Asymmetric Synthesis of Unsymmetrical Diarylmethanols
摘要:
[GRAPHICS]trans-RuCl2[P(C6H4-4-CH3)(3)](2)(NH2CH2CH2NH2) acts as a highly effective precatalyst for the hydrogenation of a variety of benzophenone derivatives to benzhydrols that proceeds smoothly at 8 atm and 23-35 degrees C in 2-propanol containing t-C4H9OK with a substrate/catalyst ratio of 2000-20000. Use of a BINAP/chiral diamine Ru complex effects asymmetric hydrogenation of various ortho-substituted benzophenones and benzoylferrocene to chiral diarylmethanols with consistently high ee.
Selective Hydrogenation of Benzophenones to Benzhydrols. Asymmetric Synthesis of Unsymmetrical Diarylmethanols
摘要:
[GRAPHICS]trans-RuCl2[P(C6H4-4-CH3)(3)](2)(NH2CH2CH2NH2) acts as a highly effective precatalyst for the hydrogenation of a variety of benzophenone derivatives to benzhydrols that proceeds smoothly at 8 atm and 23-35 degrees C in 2-propanol containing t-C4H9OK with a substrate/catalyst ratio of 2000-20000. Use of a BINAP/chiral diamine Ru complex effects asymmetric hydrogenation of various ortho-substituted benzophenones and benzoylferrocene to chiral diarylmethanols with consistently high ee.
[EN] SILICON-BASED CROSS COUPLING AGENTS AND METHODS OF THEIR USE<br/>[FR] AGENTS DE COUPLAGE CROISÉ À BASE DE SILICIUM ET LEURS PROCÉDÉS D'UTILISATION
申请人:UNIV PENNSYLVANIA
公开号:WO2016011231A1
公开(公告)日:2016-01-21
Compositions and methods using silicon-based cross-coupling agents in the formation of carbon-carbon and carbon-nitrogen bonds are described.