55978-89-7Relevant articles and documents
Preparation of RuCH2PMe2(PMe3)3Cl, Ru(CH2PMe2)2(PMe3)2, and Rh2(CH2PMe2)2(PMe3) 4 and their reactions with hydrogen
Mainz, Vera V.,Andersen, Richard A.
, p. 675 - 678 (1984)
The cis-Ru(O2CMe)Cl(PMe3)4, prepared by phosphine exchange on Ru(O2CMe)Cl(PPh3)3, reacts with 1 or 2 molar equiv of LiN(SiMe3)2 to give the metallacycle Ru(CH2PMe2)Cl(PMe3)3. The metallacycle reacts with hydrogen to give cis-RuHCl(PMe3)4. The cis-Ru(O2CMe)2(PMe3)4, prepared by phosphine exchange on Ru(O2CMe)2(PPh3)2, reacts with 2 molar equiv of LiN(SiMe3)2 to give the spirocycle Ru(CH2PMe2)2(PMe3)2. The spirocycle reacts with hydrogen to give cis-RuH2(PMe3)4. The cation [Rh(PMe3)4][O2CMe], prepared by phosphine exchange on Rh(O2CMe)(PPh3)3, reacts with LiN(SiMe3)2 to give the dimeric Rh2(CH2PMe2)2(PMe3) 4. The latter reacts with hydrogen to give fac-RhH3(PMe3)3. Thus, LiN(SiMe3)2 acts as a strong base rather than a nucleophile in these reactions.