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, R2 is an alkylene group having 1 to 22 carbon atoms, Y is oxygen, sulphur or a group of the formula NR″, in which R″ represents hydrogen or a radical having 1 to 6 carbon atoms, and R3 is an unsaturated radical having 8 carbon atoms and at least two double bonds. 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.
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.
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, R2 is an alkylene group having 1 to 22 carbon atoms, Y is oxygen, sulphur or a group of the formula NR″, in which R″ represents hydrogen or a radical having 1 to 6 carbon atoms, and R3 is an unsaturated radical having 8 carbon atoms and at least two double bonds.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.
摘要:
The present invention relates to an aqueous dispersion comprising at least one alkyd resin and at least one polymer comprising repeating units derived from monomers A of formula (I) in which R is hydrogen or a methyl group, X1 and X2 independently are oxygen or a group of the formula NR′, in which R′ is hydrogen or a radical having 1 to 6 carbon atoms, with the proviso that at least one of the groups X1 and X2 is a group of the formula NR′ in which R′ is hydrogen or a radical having 1 to 6 carbon atoms, and Z is a linking group, and R1 is an unsaturated radical having 9 to 25 carbon atoms.
摘要:
The invention relates to a process for preparing metal complexes containing carbene ligands by reacting metal compounds with ligand precursors II and/or III and to the use of the thus obtained metal complexes as catalysts.
摘要:
The present invention relates to novel nitrogen-containing monodentate phosphane ligands of formula (I) and to their use in catalytic reactions, especially in the improvement of haloaromatic compounds.
摘要:
Diphosphine of formula I R1R2P—H2C—Ar—CH2PR1R2 (I) are prepared by a process that comprises a) reacting a dimethyl compound of formula II H3C—Ar—CH3 (II) with a base and an N-substituted aminophosphorous halide to form bis(aminophosphinomethyl) compound of the formula III R3R4P—H2C—Ar—CH2—PR3R4 (III) b) reacting the compound of formula III with HCl to form bis(dichlorophosphinomethyl) compound of formula IV Cl2P—H2C—Ar—CH2—PCl2 (IV) and c) reacting the compound of formula IV with an organometallic reagent to give the product compound of formula I, wherein groups R1 and R2 are each, independently of one another, a substituted or unsubstituted aromatic, heteroaromatic or aliphatic hydrocarbon group and may have a covalent bond connecting them and Ar is a substituted or unsubstituted aromatic or heteroaromatic hydrocarbon group an R3 and R4 are each, independently of one another, an N-substituted alkylamino or arylamino group.
摘要:
The invention relates to a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures in which such olefins are present with nucleophiles (II) using a metal-carbene complex as catalyst.
摘要:
The present invention relates to the preparation of α-hydroxy ketones of the general formula I. In particular, the invention relates to novel imidazolinium carboxylate adducts and to a novel process for using catalytic amounts of imidazolium and imidazolinium carboxylate adducts in the acyloin reaction of aldehydes to prepare hydroxy ketones of the general formula I, where R and R′ are the same or different and are each H or a straight-chain or branched and optionally substituted C1-C12-alkyl radical, and R″═H3CSCH2CH2, t-butyl, n-butyl, sec-butyl, n-propyl, i-propyl, an optionally heteroatom-substituted C6-C18-aryl, heteroaryl, C6-C18-arylalkyl, especially phenylmethyl, where phenyl may again be heteroatom-substituted, or heteroalkyl.
摘要:
The present invention relates to the preparation of α-hydroxy ketones of the general formula I. In particular, the invention relates to novel imidazolinium carboxylate adducts and to a novel process for using catalytic amounts of imidazolium and imidazolinium carboxylate adducts in the acyloin reaction of aldehydes to prepare hydroxy ketones of the general formula I, where R and R′ are the same or different and are each H or a straight-chain or branched and optionally substituted C1-C12-alkyl radical, and R″═H3CSCH2CH2, t-butyl, n-butyl, sec-butyl, n-propyl, i-propyl, an optionally heteroatom-substituted C6-C18-aryl, heteroaryl, C6-C18-arylalkyl, especially phenylmethyl, where phenyl may again be heteroatom-substituted, or heteroalkyl.