Palladium, organo-, derivatives

Many organo-derivatives of the Group Vb elements have been prepared. The substituted phosphines, arsines, and stibines (for example, CH3PH2, (CH3)2AsH, and (CH3)sSb) are, like their parent hydrides (p. 253), easily flammable, toxic, and only weakly basic toward H4. However, the fully substituted arsines and phosphines form surprisingly stable adducts with salts of univalent gold, divalent platinum and palladium,... 

II) chloride, heterogenized montmorillonite(silylamine)palla-dium(II) chloride 44, 19 Palladium compds., organo-1,2-addition to ethylene derivs., heterosubst. (review) 42,832s44 Palladium complexes bis(acetonitrile)dichloropalla-dium(II) 23, 757s43 43, 809, 847, 891 44, 888... 

Palladium-catalysed carbocyclization of aldehyde-linked allenes, such as (134), carried out in the presence of the prolinol derivative (136) [Ar = 3,5-(CF3)2QH3] as co-catalyst, has been developed as an example of cooperative organo/metal-catalysed reactions. The reaction apparently proceeds via the corresponding enamine, initially generated from the carbonyl group of (134) and catalyst (136), and gives the cyclopentanes (135) with <82% ee ( )... 

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