Ammonium rhodate

C4H8Cl2N02Rh, Rhodate, dicarbonyIdichloro-, dimethyl ammonium, DMF solution, 34 122... 

Cl2MnN509CigH27, Manganese(ll), aqua(l,4-bis(2-pyridylmethyl)-1,4,7-triazacyclono-nane)-, perchlorate, 34 137 Cl2N02RhC4H8, Rhodate, dicarbonyldichloro-, dimethyl ammonium, DMF solution, 34 122... 

As amine concentration was increased, hydrogenation rates increased, passing through a maximum at 1-2M. This concentration dependence is readily understood in terms of a shift in Equilibrium 3 to favor the inactive ammonium carbonyl rhodate (I). In this equilibrium the concentration of active hydrogenation catalyst (II) passes through a maximum as the [amine] is increased. With stronger bases this maximum occurs at progressively lower concentration. 

The precipitated ammonium chlor-platinate is repeatedly washed with a saturated solution of ammonium chloride, and subsequently with dilute hydrochloric acid. It still contains small quantities of rhodium, however, as ammonium chlor-rhodate. The salt is mixed with potassium hydrogen sulphate to which a small quantity of ammonium... 

N2S3H8, Ammonium pentasulfide, 20 12 N3, Azido, platinum chain complexes, 21 149 N3RI1S15H12, Rhodate(III), tris(pentasulfido)-, triammonium, 21 15... 

Arylation reactions of aromatic ketimines were developed, and in many cases the products of the reaction were isolated after subsequent hydrolysis. Therefore, these arylations constitute an indirect method for the preparation of arylated aromatic ketones, the direct functionalizations of which are often more difficult. Thus, direct arylation of imine 42 with sodium tetraphenylborate catalyzed by [RhCl(cod)]2 afforded a mixture of mono- and diarylated benzophenone imines (44 and 45) (Scheme 9.16) [53]. The formation of the corresponding amine 46 clearly indicated that 42 also acted as a hydride acceptor in this transformation. Most likely, the reaction occurs via initial coordination by the benzophenone imine to a phenylrho-dium intermediate followed by orfho-rhodation to afford the five-membered rhoda-cyde intermediate 47 (Scheme 9.16). Subsequent reductive elimination generates the monophenylated product 44 and a rhodium hydride, which then reduces imine 42 in the presence of ammonium chloride as proton donor to regenerate the catalytically active speties. 

O4M02P2C14HK, Molybdenum(I), tetracar-bonylbis(ri -cyclopentadienylX i-V V-diphosphorus)di-, 27 224 O4NP2RI1C40H3, Rhodate(l -), tetracarbonyl-, i-nitrido-bis(triphenylphos-phorusXl+), 28 213 04NReC,jH3j, Perrenate, tetrabutyl-ammonium, 26 391... 

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