Phosphines carbamoyl complexes

The reactions between ReBr(CO)5 or Re(CH2SiMe3)(CO)5 and amines RNH2 (R = Et, allyl, Pr ) affords the carbamoyl complexes Re(CONHR)(NH2R)(CO)4. These react with EtCOCl to form the cationic amine complexes [Re(CO)5(NH2R)]. The chelated iminoacyl Mn C(=NTol)C(CH2C6H4Cl)Nrol (CO)4 reacts with phosphines and phosphites to give substitution products rather than an pendant iminoacyl complex. ... 

Extraction processes (TRUEX, PUREX, Talspeak, DIAMEX, PARC, etc.) generally involve complexation of transplutonium elements by alkyl phosphines, phosphine oxides, phosphoric acids, carbamoyl phosphonates, diamides, and thiophosphinates in aqueous/organic extractions, within derivatized solid supports, or on coated particles. There are excellent reviews of the processes and significant complexes by Mathur et al. and selected chapters in The Chemistry of the Actinide and Transactinide Elements to be published in 2003. " Work on the separation for nuclear waste management in the United States, France, and Russia have been reviewed. " ... 

JV-carbamoyl-substituted heterocyclic carbene/Pd(II) complexes in the presence of PPh3 and Cul are reported to mediate the cross-coupling of aryl iodides with terminal alkynes at very mild temperature [67]. The system is compatible with aryl bromides however, the temperature then required is 80 °C. In all reactions, the addition of 1 mol% of phosphine increased the yield of product. The role of the phosphine ligand is not completely understood but may facilitate the initial generation of a Pd(0) species. 

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