Hydration of nitrosylruthenium bis(alkynyl) complexes with hydrotris(pyrazolyl)borate: Insertion/hydration and double hydration products

被引：27
作者：
Arikawa, Y [1 ]
Nishimura, Y [1 ]
Ikeda, K [1 ]
Onishi, M [1 ]
机构：
[1] Nagasaki Univ, Fac Engn, Dept Appl Chem, Nagasaki 8528521, Japan
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 12期
关键词：
D O I：
10.1021/ja039365k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hydration of nitrosylruthenium bis(alkynyl) complex TpRu(C≡CPh)2(NO) (1) (Tp = BH(pyrazol-1-yl)3) was carried out in the presence of HBF4·Et2O in distilled MeOH and afforded the metallacycle TpRu{CH=C(Ph)C(O)CH(Ph)}(NO) (2) (39%) and the bis(ketonyl) TpRu(CH2C(O)Ph)2(NO) (3) (37%). While double hydration of 1 gave 3, 2 was produced through a combination of insertion and hydration processes. On the other hand, a similar reaction performed in THF instead of MeOH afforded 2 (52%), the acyl-ketonyl complex TpRu(C(O)CH2Ph)(CH2C(O)Ph)(NO) (4) (8.9%), and trace amounts of 3 and TpRu(C≡CPh)(CH2C(O)Ph)(NO) (5). Moreover, the 1/HBF4·Et2O/H2O reaction system in distilled MeOH at 0 °C gave rise to 5 exclusively (79%). Treatment of THF solution of isolated 5 with water in the presence of protic acid furnished 3 and 4, revealing that 5 is the intermediate in their formation. Copyright © 2004 American Chemical Society.
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页码：3706 / 3707
页数：2
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