名称:
功能性膦XV。含C 5 H 8(PR 2)2和 2),Ph(3),NC 5 H 10(4)和OPh(5)。混合配体化合物[RuCl2 {1,2-C5H8(PR2)2}(Ph2PCH2CR2'NH2)] [R'= H:R = Me(6),Ph(7),OPh(8); R'=我:R = Ph(上9)]是由双(2-甲基烯丙基)前体的反应中获得2,3和5在丙酮中用HCl的甲醇溶液,接着加入在DMF中所需的氨基膦。的(P ∩ P)2 -和(P ∩ Ñ)2-chelated络合物将[RuCl 2 {1,2-C 5 H ^ 8(PME 2)2 } 2 ](1)和将[RuCl 2(PH 2 PCH 2 CME 2 NH 2)2 ](10)源于的RuCl 3 ·在还原条件下为3H 2 O和1,2-C 5 H 8(PMe 2)2或Ph 2 PCH 2 CMe 2 NH 2。1的晶体结构,3,4,6,7,9,和
摘要:
Treatment of [Ru(eta(4) -C8H12){eta(3)-(CH2)(2)CMe}(2)] with C-2 chiral cyclopentane-1,2-diyl-bis(phosphines) trans-1,2-C5H8(PR2)(2) in hexane afforded the chelate complexes [Ru {eta3-(CH2)(2)CMe}(2){1,2-C5H8(PR2)(2)}], where R = Me (2), Ph (3), NC5H10 (4), and OPh (5). The mixed-ligand compounds [RuCl2{1, 2-C5H8 (PR2)(2)}(Ph2PCH2CR2'NH2)] [R' = H: R = Me (6), Ph (7), OPh (8); R' = Me: R = Ph (9)] were obtained by reactions of the bis(2-methylallyl) precursors 2, 3, and 5 with methanolic HCl in acetone, followed by the addition of the required aminophosphine in DMF. The (Pboolean ANDP)(2)- and (Pboolean ANDN)(2)-chelated complexes [RuCl2{1,2-C5H8(PMe2)(2)}(2)] (1) and [RuCl2(Ph2PCH2CMe2NH2)(2)] (10) resulted from RuCl3 . 3H(2)O and 1,2-C5H8(PMe2)(2) or Ph2PCH2CMe2NH2 under reducing conditions. The crystal structures of 1, 3, 4, 6, 7, 9, and 10 were determined by single-crystal X-ray diffraction. Complexes 7, 9, and 10, activated by KOBu-t, i-PrOH, were used as catalysts for the transfer hydrogenation of acetophenone with i-PrOH as the hydrogen source. Base modified complex 10 also turned out to be an active catalyst for the direct hydrogenation of the ketone by H-2, under pressure. (C) 2004 Published by Elsevier B.V.