摘要:
Transition metal complexes with quino[7,8-h]quinolines and cyclopentadieno[1,2-h:4,3-h′]diquinolines as proton sponge ligands and a process for their preparation. These complexes are suitable as catalysts, e.g. the palladium complexes for a Heck reaction, as well as for amination and C—H activation reactions. The platinum and palladium complexes are potentially good cytostatic agents.
摘要:
The invention is directed to manganese-containing polyoxometallates of the formula (1)(Q).sub.q (Mn.sub.p A.sub.a X.sub.x Y.sub.y M.sub.m O.sub.d Z.sub.z (H.sub.2 O).sub.b)cH.sub.2 O (1)where Q is one or more cations selected from the group consisting of H, Li, K, Na, Rb, Cs, Ca, Mg, Sr, Ba, Al, PR.sup.1 R.sup.2 R.sup.3 R.sup.4 and NR.sup.1 R.sup.2 R.sup.3 R.sup.4 where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 =H or C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or aryl;Mn is manganese;A is a heterometal and is one or more transition metals from transition groups II to VIII apart from Zn, in particular Ru, V, Ti, Zr, Cr, Fe, Co, Cu, Sn, Ni, Re or Os;X is one or more elements selected from the group consisting of Ga, B, P, Si, Ge, As, F, Cl, Br and I;Y is Sb, S, Te, Se and Bi;M is one or more transition metals selected from the group consisting of Mo, W, Nb, Ta and V;Z is one or more anions selected from the group consisting of OH.sup.-, F.sup.-, Cl.sup.-, Br.sup.-, I.sup.-, N.sub.3.sup.-, NO.sub.3.sup.-, ClO.sub.4.sup.-, NCS--, SCN--, PF.sub.6.sup.-, RSO.sub.3.sup.-, RSO.sub.4.sup.-, CF.sub.3 SO.sub.3.sup.-, BR.sub.4.sup.-, BF.sub.4.sup.-, OAc.sup.-, where R=H, C.sub.1 -C.sub.20 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl or aryl. The indexes q, p, a, x, y, m, d, z and the numbers b and c are defined in the specification. The oxidation catalyst according to the invention is particularly effective in activating peroxidic compounds and oxygen.
摘要:
Described are complexes of the transition metals manganese, iron, cobalt, ruthenium, molybdenum, titanium, vanadium and/or copper containing one or more ligands of general formula (I) ou (II)in which R is a direct bond or an optionally amin-group-substituted alkylene group with 1 to 4 C-atoms, A is a condensed or non-condensed ring system containing at least one nitrogen atom, B is hydrogen, an OH-group or the same as A, and X is a phenyl ring optionally substituted with and/or C.sub.1-4 alkyl or an optionally hydroxy-substituted C.sub.1-4 alkylene group. The complexes are suitable for use as activators or peroxy compounds in oxidative washing, cleaning and disinfectant solutions, washing and cleaning agents preferably containing 0.0025 to 0.25% by wt. of such activator complexes. ##STR1##
摘要:
The selective epoxidation of cis double bonds of macrocyclic aliphatic hydrocarbons having 8 to 20 ring carbon atoms occurs by a catalytic process. The macrocyclic aliphatic hydrocarbons may optionally contain one or more side chains and in which at least one further trans double bond is simultaneously present. The used catalyst system consists of a cationic phase-transfer catalyst and an anionic polyoxometallate which is a polytungstate or a polymolybdate. Additionally, it comprises one or more elements selected from germanium, tin, lead, arsenic, antimony, bismuth, selenium, tellurium and polonium, and optionally one or more transition metals from group 4 to 12 of the Periodic Table.
摘要:
Bleach composition comprising one or more bleaching agents and one or more polyoxometallates of the formula(Q).sub.q (A.sub.a X.sub.x M.sub.m O.sub.y Z.sub.z (H.sub.2 O).sub.b.cH.sub.2 Oas bleaching catalyst, the symbols Q, A, X, M, Z, q, a, x, m, y, z, b and c being as defined in the description.