Hydrogen Abstraction from Transition Metal Hydrides by Gold Alkoxides Giving Gold-Containing Heterodinuclear Complexes
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Gold(I) alkoxides, Au(OR)L (L = PPh<SUB>3</SUB>, PCy<SUB>3</SUB>; R = CH(CF<SUB>3</SUB>)<SUB>2</SUB>, CH<SUB>2</SUB>CF<SUB>3</SUB>, Ph) smoothly abstract a hydrogen from transition metal hydrides (MH = CoH(CO)<SUB>4</SUB>, MoHCp(CO)<SUB>3</SUB>, WHCp(CO)<SUB>3</SUB>, MnH(CO)<SUB>5</SUB>, WHCp(CO)<SUB>2</SUB>(PPh<SUB>3</SUB>)) to give corresponding dinuclear complexes LAu-M with liberation of equimolar amount of ROH. Similar reactions of gold(III) alkoxides, <I>cis</I>-AuMe<SUB>2</SUB>-(OR)L also give dinuclear intermediates LMe<SUB>2</SUB>Au-M, from which preferential reductive elimination of ethane takes place when M is more electron withdrawing.
- Chemistry Letters
Chemistry Letters 1997(10), 981-982, 1997-10
The Chemical Society of Japan