Nucleophile promoted degradation of catecholborane: consequences for transition metal-catalyzed hydroborations

SA Westcott, HP Blom, TB Marder, RT Baker…

文献索引：Westcott, Stephen A.; Blom, Henk P.; Marder, Todd B.; Baker, R. Thomas; Calabrese, Joseph C. Inorganic Chemistry, 1993 , vol. 32, p. 2175 - 2182

全文：HTML全文

被引用次数: 106

摘要

Reactions of tertiary phosphines or phosphinorhodium complexa with catecholborane (HB (cat)) give boron-substituent redistribution products. While sterically compact phosphines (PMe3, PEt3, PMe2Ph) react with 1 equiv of HBcat to give [(PR3) 2BH2]+[B (cat)~]-, bulkier phosphines (PPh3, PPri3, PCy3) afford phosphine-boranes H3B-PR3 and tris (catecholato) diboron, B2 (cat) 3. Reactions of HB (cat) with coordinatively saturated [RhH (DPPP) 2]( ...