Synthesis and protonation of [RuH(NBD)(2,6-(Ph2PCH2)2C6H3)]

被引：11

作者：

Liu, SH

Ng, SM

Wen, TB

Zhou, ZY ^{[1
]}

Lin, ZY

Lau, CP

Jia, GC

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China

来源：

ORGANOMETALLICS | 2002年 / 21卷 / 20期

关键词：

D O I：

10.1021/om020521q

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of [RuCl(PPh3)(PCP)] (PCP = 2,6-(Ph2PCH2)(2)C6H3) With norbornadiene (NBD,) in the presence of CuCl produces [RuCl(NBD)(PCP)]. Reaction of [RuCl(NBD)(PCP)1 with TlOTf gives [Ru(OTf)(NBD)(PCP)], which reacts with NaBH4 to produce [RuH(NBD)(PCP)]. Protonation of [RuH(NBD)(PCP)l with acetic acid in the presence of PPh3 gives norbornene and [Ru(OAc)(PPh3)(PCP)]. Protonation of [RuH(NBD)(PCP)] with HOTf gives norbornene and [Ru(OTf)(NBD)(PCP)]. Protonation of [RuH(NBD)(PCP)l with HOTf in the presence of MeCN gives norbornene, [Ru(MeCN)(NBD)(PCP)]OTf, and [Ru(MeCN)3(PCP)]OTf. In the protonation reactions, the NBD is likely hydrogenated through the dihydrogen intermediate [Ru(H-2)(NBD)(PCP)](+). A computational study shows that hydrogen transfer from the dihydrogen to the NBD ligand of [Ru(H-2)(NBD)(PCP)](+) proceeds through a stepwise mechanism.

引用

页码：4281 / 4292

页数：12

共 95 条

[1] Synthesis and characterization of RuH2(H2)2(PiPr3)2 and related chemistry.: Evidence for a bis(dihydrogen) structure [J].