Zeolite-Y immobilized Metallo-ligand complexes: A novel heterogenous catalysts for selective oxidation
作者:Dinesh R. Godhani、Haresh D. Nakum、Digvijaysinh K. Parmar、Jignasu P. Mehta、Nisheeth C. Desai
DOI:10.1016/j.inoche.2016.08.017
日期:2016.10
(homogeneous) have offered high activity and selectivity over oxidation of cyclohexene. Moreover, the [Cu(L 1 )] and [Cu(L 1 )]-Y were employed as catalyst over various organic substrates at identical reaction condition. The immobilized catalyst [Cu(L 1 )]-Y is found to be moderate active over oxidation of cyclohexane (75.2%,), benzene (8.21%), phenol (14.5%), styrene (87.5), benzyl alcohol (21.5%)
New tetradentate Schiff bases, their oxovanadium(IV) complexes, and some complexes of bidentate Schiff bases with vanadium(III)
作者:Nosheen Choudhary、David L. Hughes、Uwe Kleinkes、Leslie F. Larkworthy、G.Jeffery Leigh、Michael Maiwald、Celine J. Marmion、J.Roger Sanders、Gallenius W. Smith、Claas Sudbrake
DOI:10.1016/s0277-5387(96)00436-6
日期:1997.1
Abstract New vanadyl(IV) complexes of tetradentate Schiff-base dianions containing one, two or three carbon atoms between the two iminato-nitrogen atoms are described. The compounds are either mononuclear or polymeric, as shown by the value of v(V=O), and depending upon the Schiff-base dianion. There is no evidence for electron delocalization along the polymeric chains. Some vanadium(III) complexes
Zn-induced allylation of chromone-3-carbaldehyde 1 produces 3-(1-hydroxy-3-butene-1-yl)chromone 2, which gives back 1 on treatment with formalin under acidic conditions, and reacts differently towards nitrogenous nucleophiles.