摘要:
Process for the telomerization of dienesThe present invention relates to a process for the telomerization of dienes, according to which the diene is reacted with a compound containing an active hydrogen atom in the presence of a palladium compound, a water-soluble phosphine ligand and a base, the water-soluble ligand being a bidentate ligand having the following formula I ##STR1## in which R is identical or different and is phenyl, C.sub.1 -C.sub.12 -alkyl or C.sub.3 -C.sub.10 -cycloalkyl, which may be unsubstituted or substituted by one or more radicals R',R' is identical or different and is SO.sub.3.sup.- M.sup.+, --NMe.sub.3.sup.+ or --COO.sup.- M.sup.+,n is an integer from 1 to 6, in each case based on a naphthyl backbone, andM is H, Na, K, Cs or R".sub.4 N.sup.+ where R" is identical or different and is H, C.sub.1 -C.sub.12 -alkyl or C.sub.1 -C.sub.10 -cycloalkyl.
摘要:
Disclosed and claimed are oxidation reactions involving, as a catalyst, a bis- and/or tris-(.mu.-oxo)-dimanganese complex salt of the formula I[LMn(.mu.-O).sub.a (.mu.-OAc).sub.b MnL].sup.x A.sub.y (I)Ac is a C.sub.2 -C.sub.8 -acyl group,a is 1, 2 or 3,b is 0 when a is 2 or 3 or b is 2 when a is 1,x indicates the number of positive charges and is 2 or 3,A is a singly or doubly negatively charged anion,y is the number of anions A required to balance the positive charges andL is a ligand, such as N,N-bis(2-pyridylmethyl)-N-methylamine or N,N,N',N'-tetrakis(2-pyridyl(methyl)-N-methylamine or N.sub.1 N.sub.1 N.sub.1, N.sup.1 -tetrakis(2-pyridylmethyl)-1,2-ethylenediamine.
摘要:
Bleach systems comprising bis- and tris(.mu.-oxo)dimanganese complex salts as catalystBis- and tris(.mu.-oxo)dimanganese complex salts of the formula�LMn(.mu.-O).sub.a (.mu.-OAc).sub.b MnL!.sup.x A.sub.yas catalysts for oxidizing organic compounds, in which formulaAc is a C.sub.2 -C.sub.8 -acyl group,a is 1, 2 or 3,b is 0 if a is 2 or 3 or is 2 if a is 1,x denotes the number of positive charges and is 2 or 3,A is an anion,y is the equivalent amount of anion A required to compensate the positive charges, andL is a ligand, preferably N,N'-bis(2-pyridylmethyl)-N-methylamine or N,N,N',N'-tetrakis(2-pyridylmethyl)-1,2-ethylenediamineare employed as catalysts in bleach systems for textile material.
摘要:
The invention relates to a process for preparing aromatic acetylenes of the formula (I): Ar--C.tbd.C--R.sup.8a, where Ar is: ##STR1## by reacting haloaromatics or aryl sulfonates of the formula (II): Ar--X, with monosubstituted acetylenes of the formula (III): Ar--C.tbd.C--R.sup.8a, where Ar is defined above and X is bromine, chlorine or OSO.sub.2 R, in the presence of a palladium compound catalyst of the formula (IV): ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 are, independently of one another, hydrogen (C.sub.1 -C.sub.4)-alkyl, (C.sub.1 -C.sub.4)-alkoxy, fluorine, NH.sub.2, NH-alkyl-(C.sub.1 -C.sub.4), N(alkyl).sub.2 -(C.sub.1 -C.sub.4), CO.sub.2 -alkyl-(C.sub.1 -C.sub.4), OCO-alkyl-(C.sub.1 -C.sub.4), or phenyl, or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, R.sup.3 and R.sup.4, R.sup.5 and R.sup.6, together form an aliphatic or aromatic ring, and R.sup.7, R.sup.8 are (C.sub.1 -C.sub.8)-alkyl, (C.sub.3 -C.sub.12)-cycloalkyl, substituted or unsubstituted aryl, and Y is an anion of an inorganic or organic acid.
摘要:
The chiral manganese-triazonone complex of the general formula (I) is disclosed: �Mn.sub.u (L).sub.V (OR).sub.W (.mu.-O).sub.X (.mu.OAc).sub.y !X.sub.z(I) The complex is useful industrially to prepare chiral compounds.
摘要:
The present invention relates to a process for preparing aromatic amines by reacting an aromatic nitro compound with carbon monoxide in a solvent mixture comprising water and a water-insoluble organic solvent by means of a catalyst comprising palladium and a water-soluble phosphine under a pressure of from 5 to 300 bar and at a temperature of from 50 to 200.degree. C., and separating the aqueous phase and the organic phase.
摘要:
The present invention relates to a process for deuteration of amines in the alpha and/or beta position of the N-atom by using a deuterium source and a Ruthenium(II) based catalyst.
摘要:
The invention provides a process for preparing esters from formates and olefinically unsaturated compounds with catalysts based on palladium compounds. In addition, the invention discloses a polyphasic reaction mixture and nonyl methyl ester mixtures prepared by the process according to the invention.
摘要:
The invention relates to a method for hydroformylation of unsaturated compounds such as olefins and alkynes using mixtures of synthesis gas (CO/H2), in which either the unsaturated compounds and a catalyst are heated to a reaction temperature of 60 to 200° C. and the synthesis gas is then added, or the unsaturated compounds and the catalyst are brought into contact with pure CO at normal temperature in a preformation step, then are heated to reaction temperature and on reaching the reaction temperature the CO is replaced by the synthesis gas. The pressure is 1 to 200 bar and the CO:H2 ratio in the synthesis gas is in the range from 1:1 to 50:1. The iridium catalyst used comprises a phosphorus-containing ligand in the iridium:ligand ratio in the range from 1:1 to 1:100. With high catalyst activities and low catalyst use, very high turnover frequencies are achieved.
摘要翻译:本发明涉及使用合成气(CO / H 2)的混合物加氢甲酰化不饱和化合物如烯烃和炔烃的方法,其中将不饱和化合物和催化剂加热至60至200℃的反应温度, 然后加入合成气,或者使未饱和化合物和催化剂在预成型步骤中在常温下与纯的CO接触,然后加热至反应温度,达到反应温度,CO被合成气代替。 压力为1〜200巴,合成气中的CO:H 2比在1:1〜50:1的范围内。 使用的铱催化剂包含铱:配体比例为1:1至1:100的含磷配体。 具有高催化剂活性和低催化剂用途,实现了非常高的周转频率。
摘要:
The present invention relates to a (meth)acrylate monomer of the general formula (I) in which R1 is hydrogen or a methyl group, X is oxygen or a group of the formula NR′ in which R′ is hydrogen or a radical having 1 to 6 carbon atoms, and R2 is a radical having 3 to 31 carbon atoms and at least one aldehyde group.The present invention further relates to a process for preparing the monomers set out above, to polymers obtainable from this monomer mixture, and to coating materials which comprise the stated polymers.