摘要:
Disclosed are an oxychlorination catalyst comprising a carrier material, and a palladium compound, a copper compound and a vanadium compound which are supported on the carrier material; an oxychlorination catalyst comprising a carrier material, and a palladium compound, a copper compound, a vanadium compound and an alkaline earth metal compound which are supported on the carrier material; processes for preparing these catalysts; and a method for oxychlorination of an olefin or an aromatic hydrocarbon using one of these catalysts.
摘要:
A process for preparing a dimer of a lower .alpha.-olefin in the presence of Catalyst (A) containing a nickel compound, a trialkylaluminum, a halogenated phenol, a phosphorus compound and a sulfur compound, Catalyst (B) containing a nickel compound, a trialkylaluminum, a fluorinated isopropyl alcohol, a phosphorus compound, a sulfonic acid and water, or Catalyst (C) containing a nickel compound, a trialkylaluminum, a halogenated phenol, a phosphorus compound, a sulfonic acid and water, by which method, the dimer of the lower .alpha.-olefin is prepared in a high yield and high selectivity.
摘要:
There is disclosed an optically active salicylideneaminoalcohol compound of formula (1): wherein R1 represents an alkyl group or the like, R2 represents an aryl group and the like, and when X1 represents a nitro, X2 is a hydrogen atom, when X1 represents a chlorine atom, X2 is a chlorine atom, and when X1 is a hydrogen atom, X2 is a fluorine atom; and the carbon atom denoted by “*” is an asymmetric carbon atom having either an S or R configuration, and a chiral copper complex produced from the optically active salicylidenaminoalcohol compound and a copper compound.
摘要:
Disclosed is an asymmetric copper catalyst composition comprising, as components, (a) an optically active bisoxazoline compound of formula (1): wherein R1 and R2 are different and each represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, R3 and R4 each represents a hydrogen atom, an alkyl group, a cycloalkyl group, or a phenyl or aralkyl group which may be substituted, or R3 and R4 may be bonded to each other to form a C3-5 cyclic alkylene group, R5 represents a hydrogen atom or a C1-6 alkyl group, or the two R5 groups may be bonded to each other to represent a C3-5 cyclic alkylene group, (b) a monovalent or divalent copper compound, and (c) a strong acid or a Lewis acid or a mixture thereof, and a process for producing an optically active cyclopropanecarboxylate using the same.
摘要:
There is disclosed an optically active salicylideneaminoalcohol compound of formula (1): wherein R1 represents an alkyl group or the like, R2 represents an aryl group and the like, and when X1 represents a nitro, X2 is a hydrogen atom, when X1 represents a chlorine atom, X2 is a chlorine atom, and when X1 is a hydrogen atom, X2 is a fluorine atom; and the carbon atom denoted by “*” is an asymmetric carbon atom having either an S or R configuration, and a chiral copper complex produced from the optically active salicylidenaminoalcohol compound and a copper compound.
摘要:
There are provided a process for producing an alkenyl-substituted aromatic hydrocarbon by alkenylation of an alkyl-substituted aromatic hydrocarbon having a hydrogen atom at the &agr;-position of a side chain thereof with a conjugated diene, using a catalyst obtained by the action of an alkali metal compound and an alkali metal or an alkali metal hydroxide on an metal oxide selected from alumina or hydrotalcite by heating in a specific temperature range; and a process for producing an alkenyl-substituted aromatic hydrocarbon, characterized in that the reaction is carried out in the presence of an alkylaminopyridine of formula (1): wherein R1 is hydrogen or C1-C6 lower alkyl, and R1 is C1-C6 lower alkyl, using as a catalyst, Na metal, K metal, or an alloy thereof, or a catalyst carrying any of them on an inorganic compound support, or a catalyst obtained by the action of an alkali metal compound and alkali metal or an alkali metal hydride on a metal oxide selected from alumina, alkaline earth metal oxides, hydrotalcite, silica-alumina, or zeolite by heating in a temperature range of 70° C. to 700° C.
摘要:
There is disclosed a method for producing 2,3-dimethylbutene-1 and 2,3-dimethylbutene-2, which is characterized by the steps of (a) dimerizing propylene in a propylene-dimerization step using a nickel complex catalyst as described below as a propylene-dimerization catalyst having propylene-dimerization activity and DMB-1 selectivity, (b) rectifying the resulting reaction solution to obtain 2,3-dimethylbutene-1 as a distillate and a distillation residue containing 2,3-dimethylbutene-1 in a 2,3-dimethylbutene-1 distillation step, (c) allowing the distillation residue to contact with sulfuric acid, sulfonic acid or hetetopolyacid to isomerize 2,3-dimethylbutene-1 in said distillation residue into 2,3-dimethylbutene-2 in an isomerization step, and (d) rectifying the resulting isomerization reaction solution to obtain 2,3-dimethylbutene-2 in a 2,3-dimethylbutene-2 distillation step, wherein said nickel complex catalyst containing (A) at least one nickel compound and the like, (B) a trialkylaluminum, (C) a trivalent phosphorus compound, (D) a fluorinated isopropanol or a halogenated phenol (E) at least one sulfur compound selected from a sulfonic acid and a dialkylsulfuric acid.
摘要:
There is provided a process for producing an alkenyl-substituted pyridine derivative using, a solid base catalyst which is obtained by heating a metal oxide selected from the group consisting of alumina, an alkaline earth metal oxide and a hydrotalcite withan alkali metal,an alkali compound and an alkali metal oran alkali compound and an alkali metal hydride under an inert gas atmosphere at a temperature within the range of 100-700.degree. C.
摘要:
There is disclosed chiral copper complex catalyst composition, which is obtained by contacting an optically active N-salicylideneaminoalcohol compound of formula (1): with a mono-valent or di-valent copper compound in an inert solvent, wherein R1 and R2 represent an alkyl group and the like, X1 and X2 represent a hydrogen atom, a halogen atom, a nitro group, an alkyl group, an alkoxy group, a cyano group or the like, and the amount of the mono-valent or di-valent copper compound is less than 1 mole per 1 mole of the optically active N-salicylideneaminoalcohol compound of formula (1), and a process for producing an optically active cylopropane-carboxylic acid ester using the same.
摘要:
Amines are produced in high yield by the process which comprises allowing a cyclic ketone to react with ammonia in the presence of active carbon to produce imino derivatives and then, allowing the imino derivatives to react with hydrogen in the presence of a hydrogenating catalyst.