Cadmium complexes amides

Cadmium complexes acety(acetone, 2, 372 alcohols, 5, 964 amides, 5,944 amine oxides, 5,964 amines, 5,933 amino acids, 5, 938... 

The involvement of zinc in nicotinamide-based hydride-transfer reactions has led to numerous studies of Group IIB complexes of pyridine carboxylic acid derivatives. Cadmium complexes of 2-pyridinecarboxylic acid, 5 3-pyridinecarboxylic add497 and 3-pyridinecarboxamide498 have been reported. The crystal structure of [Cd(HC02)2L2(H20)2] (L = 3-pyridinecarboxamide) has also been described the metal is in an octahedral environment in which the amide acts as a monodentate N donor.498... 

Cadmium, 925-1022 acute poisoning, 1000 chronic poisoning, 1000 metallothioneins, 1021 poisoning therapy, 1001 toxicology, 999 Cadmium complexes alcohols, 964 amides, 944 amine oxides, 964 amines, 933 amino acids, 938... 

In methylthiourea complexes with metals such as platinum, palladium, copper, zinc, and cadmium the amide band appears in a range from 1565 to 1580 cm S which is shifted from its normal position at 1550 cm in methylthiourea In thiourea complexes of platinum, palladium, zinc, and nickel the band appears between 1625 and 1615 cm compared to 1610 cm in thiourea [ ]. In boron halide complexes of acetamides the band appears in the 1555-1525 cm range [ ]. In trifluoroacetamides the band appears in almost the same positions as in the corresponding acetamides, near 1580 cm ... 

Formation of the 1 1 complexes with zinc and cadmium has been studied in aqueous solution, and the complexes are more stable than the corresponding 1 1 adducts with bipy 245). Ternary mercury(II)-hydroxo-terpy complexes are active catalysts for hydrolysis of esters and amides 477). 

Zinc-modified cyanoborohydride, prepared from anhydrous zinc chloride and sodium cyanoborohy-dride in the ratio 1 2 in ether, selectively reduced aldehydes and ketones but not acids, anhydrides, esters and tertiary amides. In methanol the reactivity paralleled the unmodified reagent. Zinc and cadmium borohydrides form solid complexes with DMF, which may prove to be convenient sources of the reducing agents.Aromatic and a,p-unsaturated ketones were reduced much more slowly than saturated ketones, so chemoselective reduction should be possible. 

A series of cadmium amides C(R Si)2H32Cd and their complexes (R Me) with... 

N-acetyl-L-cysteine and N-acetyl-D-penicillamine are the simplest ligands containing the thiolate and amide donor functions in the same molecule. For understanding the coordination chemistry of L-cysteine and its peptide derivatives, it is important to take into account that the thiol group can form a five-membered chelate with the amide-N and a six-membered one with the carboxylate-O donor atoms. All studies rule out a cadmium(ll)-induced amide coordination in these complexes, therefore the formation of the (S,0) chelate is the governing factor during complex formation with N-acetyl-L-cysteine. The equilibrium data have... 

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