Chromium amido

Cyclodiphospho(III)azane-bridged bis(amido) complexes, with Zr(IV) and Hf(IV), 4, 793 Cyclodisilazanes, preparation, 3, 444 Cycloetherification, with alkynes, 10, 673 Cycloheptadienyl complexes, with chromium carbonyls,... 

Density functional theory studies arene chromium tricarbonyls, 5, 255 beryllium monocyclopentadienyls, 2, 75 chromium carbonyls, 5, 228 in computational chemistry, 1, 663 Cp-amido titanium complexes, 4, 464—465 diiron carbonyl complexes, 6, 222 manganese carbonyls, 5, 763 molybdenum hexacarbonyl, 5, 392 and multiconfiguration techniques, 1, 649 neutral, cationic, anionic chromium carbonyls, 5, 203-204 nickel rj2-alkene complexes, 8, 134—135 palladium NHC complexes, 8, 234 Deoxygenative coupling, carbonyls to olefins, 11, 40 (+)-4,5-Deoxyneodolabelline, via ring-closing diene metathesis, 11, 219... 

Indanes, chromium tricarbonyl complexes, 5, 246 Indazoles, in copper-catalyzed lead reactions, 9, 409 Indenes, chromium tricarbonyl complexes, 5, 246 Indenide derivatives, alkali compounds, 2, 13 Indenones, via imine carbonylation, 10, 136 Indenyl-alkoxo complexes, with Ti(IV), 4, 500 Indenyl-amido complexes, with Ti(IV), 4, 454 Indenyl-amido dimethyl complexes, with Ti(IV), 4, 442 Indenyl bridges, in [Pg.126]

D. TRIS [ BIS(TRIMETHYLSILYL)AMIDO ] CHROMIUM(III) (Tris(l, 1,1,3,3,3-hexamethylsilazanato)chromium(III))... 

Amido-substituted methylenecyclopropanes can be used in [2 + 2] photocycloadditions with chromium-alkoxycarbene complexes. (5)-3-(2-Methylenecyclopropyl)-4-phenyloxazolidin-2-one (14) was prepared from pentacarbonyl[A-phenylglycinyl(cyclopropyl)carbene]chro-mium(O) by ring closure with sodium hydride and diphenyl carbonate. Photolysis of a variety of chromium-alkoxycarbene complexes 15 in the presence of two equivalents of optically active enecarbamate under carbon monoxide produced optically active cyclobutanones. The cis- and trani-products, 16 and 17, were formed with a high degree of asymmetric induction at the position a to the oxygen. ... 

The lower reactivity of chromium(lll) complexes in a D b pathway could arise due to lower acidity of the amino protons and/or a lower lability of the amido species. Studies of the kinetics of proton exchange have only recently begun, but initial results indicate that values of k, (equation 3.1) can be up to 10 times smaller than those for the analogous Co(III) complexes, although the ratio varies from complex to complex. 

Researchers at Sasol described chromium catalysts containing amido bisphosphine PNP or amido bis-thioether SNS pincer ligands for ethylene trimerization. ... 

CsHaaClaCOjNaOi 5 HjO, /n-Peroxo-/i-hydroxo-bis[bis(ethylenediamine)-cobalt(III)] perchlorate monohydrate, 46B, 953 CsHa aCr2NeOi uSi, H2O, A,A-/i-Hydroxo-/i-sulfatobis[bis(ethylenediam-ine)chromium(III)] dithionate hydrate, 45B, 1026 C8H3ftBr3Co2NgOi,S, DL /i-Amido-/i-sulfato-bis(bis(ethylenediamine)co-balt(III)) tribromide, 37B, 486... 

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