共 73 条
Ruthenium-catalyzed allylic substitution of cyclic allyl carbonates with nucleophiles. Stereoselectivity and scope of the reaction
被引:93
作者:
Morisaki, Y
[1
]
Kondo, T
[1
]
Mitsudo, TA
[1
]
机构:
[1] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Sakyo Ku, Kyoto 6068501, Japan
关键词:
D O I:
10.1021/om990533k
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
CpRuCl(cod)/NH4PF6 (Cp = cyclopentadienyl, cod = 1,5-cyclooctadiene) is an effective catalyst system for the allylic substitution of cyclic allyl carbonates with nucleophiles. This catalyst system enables the first investigation of the stereochemical course of the ruthenium-catalyzed allylic substitution reaction, in which the reaction proceeds with an overall retention of configuration. The stoichiometric reaction of trans-5-(methoxycarbonyl)cyclohex-2-enyl chloride with Cp*RuCl(cod) (Cp* = pentamethylcyclopentadienyl) gave the unexpected complex Cp*Ru(eta(6)-C6H5CO2Me)(+) by the rapid dehydrohalogenation/dehydrogenation of the desired Cp*RuCl2-(eta(3)-C6H8CO2Me) complex.
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页码:4742 / 4746
页数:5
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