Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound in a high yield by the reaction of an alkyne with a carbonyl compound and an amine in the presence of a heterogeneous catalyst. SOLUTION: This compound, a hydroxyalkyl-substituted aminoalkyne of formula IV [e.g. 3-(di-2-hydroxyethylamino)propyne], is obtained by reaction of an alkyne of formula I (R1 is H, an alkyl, hydroxyalkyl, etc.) with a carbonyl compound of formula II (R2 and R3 are each H, an alkyl, aryl, alkoxy, etc..) and an amine of formula III (R4 and R5 are each H, an alkyl, hydroxyalkyl, etc., or joined together with a bound N atom to form a five- or six-membered ring) in the presence of a heterogeneous catalyst such as an acetylated copper catalyst carried on a bismuth-doped silicate support. By virtue of this method, the objective desired aminoalkyne can be obtained in high yield without the need of any special means for pH adjustment.
Abstract:
PROBLEM TO BE SOLVED: To enable the reaction of organic substances in far much higher reaction yield or almost quantitatively with a low metal-content catalyst, by using a specific carrier-supported ruthenium catalyst. SOLUTION: In the presence of (A) a catalyst that is prepared by depositing (A1 ) ruthenium only or together with (A2 ) another metal in groups IB, VIIB or VIIIB on a carrier (A3 ) where the average pore size and BET specific surface area are >=50nm and /g, respectively, the content of A1 is 0.01-30wt.% based on the whole catalyst weight and the surface area ratio of A1 /A3 of
Abstract:
PROBLEM TO BE SOLVED: To enable the obtaining of a process by which a high yield or a quantitative conversion rate can be achieved by reacting an organic compound in the presence of a catalyst containing a specific metal supported on a specified support. SOLUTION: An organic compound is reacted in the presence of a catalyst comprising (B) ruthenium alone or together with at least one group Ib, IIb or VIIIb as an active metal in an amount of 0.01-30wt.%, based on the total weight of the catalyst applied to (A) a support in which 50-90% of the pore volume of the support comprises mesepores having a pore diameter within the range of 2-50nm and the sum of the pores volumes is 100%. The reaction is preferably hydrogenation, dehydrogenation, hydrogenolysis, etc., especially preferably the hydrogenation. The organic compound is low molecular weight monomers and polymeric organic compounds, etc., which can be catalytically reacted. Thereby, the reaction can be carried out at a high space velocity and an ultrahigh turnover number for a long on-stream time, and a high yield and a high purity of a hydrogenation product can be expected.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for reacting an organic compound by which the reaction of the organic compound is performed in extremely high yield or nearly complete conversion by using a specific catalyst. SOLUTION: All organic compound of a monomer and a polymer, especially an organic compound having a treatable group by hydrogen such as C-C double bond and C-C triple bond are reacted in the presence of a uniform ruthenium compound or a mixture of two or more kinds thereof deposited on a carrier in situ in the method for reacting an organic compound. The reaction is preferably hydrogenation, dehydrogenation, hydrogenolysis, amination hydrogenation or dehalogenation. The catalyst is the supported catalyst obtained by subjecting a solution of the ruthenium compound or two or more kinds thereof to pass through in the carrier or on the carrier to form the uniform ruthenium compound or mixture of two or more compound thereof deposited on the carrier. The smallest amount of a byproduct or a degrading product is formed during the hydrogenation and the reaction is performed without separation, after- treatment and recycle of the catalyst in the method.
Abstract:
PROBLEM TO BE SOLVED: To provide a continuous distillation method having excellent economic efficiency, guaranteeing safety of high level in the case of isolating α- ethynylcarbinol on an industrial scale. SOLUTION: α-Ethynylcarbinol is isolated from a liquid reaction mixture obtained by adding acetylene to an α,β-unsaturated carbonyl compound by a continuous distillation comprising introducing a feed stream to the central part of a distillation column, azeotropically distilling away most of water together with a solvent at the top of the column and taking out α- ethynylcarbinol of the objective product at a part below the feeding part to the column.
Abstract:
PROBLEM TO BE SOLVED: To provide a process for hydrogenating an aromatic compound, enabling to perfectly hydrogenate the aromatic compound in a high yield. SOLUTION: This process for hydrogenating an aromatic compound in which a least one hydroxyl group is bonded to an aromatic ring or an aromatic compound in which at least one amino group is bonded to an aromatic ring, in the presence of a catalyst comprising, as catalytically active component, at least one metal of transition group I, VII or VIII of the periodic table applied to a support, wherein the catalyst is obtainable by (a) dissolving the catalytically active compound or a precursor compound thereof in a solvent, (b) admixing the solution thus obtained with an organic polymer which is able to bind at least ten times its own weight of water, giving a swollen polymer, (c) subsequently mixing the swollen polymer with a catalyst support material and (d) shaping, drying and calcining the composition obtained in this way.
Abstract:
PROBLEM TO BE SOLVED: To provide the Raney metallic catalyst of a fixed bed having macropores, sufficient mechanical stability and high catalytic activity and released from the defects of the conventional technique such as the low macropore ratio or the presence of a considerable amt. of α-alumina and to produce the corresponding hydrogenated polymer with a high conversion rate in high yield. SOLUTION: The activated Raney metallic catalyst of a fixed bed formed not from a metal powder but from the alloy of aluminum and at least one kind of subgroup VIII metal contains >=80vol.% macropores, based on the total volume of the pores. This catalyst is used to hydrogenate a low-molecular-weight and highly polymerized org. compd.
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound under low pressure by using a catalyst containing metal compounds of a first and a second subgroup elements and gaseous C2 H2 , etc., when carrying out the reaction of an alkyd with a 1-oxa-3- azaheterocycloalkane. SOLUTION: An N-hydroxyalkyl substituted aminoalkyne expressed by formula II is manufactured by reacting a mixture of a compound expressed by the formula R -C≡C-H(R is H, an alkyl, etc.) and a compound expressed by formula I (R , R are each H, an alkyl, etc.; A is a 2-5 alkylene) in the presence of a catalyst containing a metal compound of a first subgroup elements under a heterogeneous catalytic system. A suitable catalyst contains a complex of copper acetylide and Bi compound, for example, (BiO)2 CO3 , etc., the preferable catalyst contains about 40-70wt.% of Cu and about 0.1-10% of Bi. The reaction is carried out in a reactor such as a tubular reactor, etc., provided with a stirrer, generally at 0-200 deg.C, preferably at 20-120 deg.C, especially preferably at 40-120 deg.C.
Abstract:
Verfahren zur Umsetzung einer organischen Verbindung in Gegenwart eines Katalysators, der als Aktivmetall Ruthenium alleine oder zusammen mit mindestens einem Metall der I., VII. oder VIII. Nebengruppe des Periodensystems, aufgebracht auf einem Träger, umfaßt, wobei der Träger einen mittleren Porendurchmesser von mindestens 50 nm und eine Oberfläche BET von höchstens 30 m 2 /g aufweist und die Menge des Aktivmetalls 0,01 bis 30 Gew.-%, bezogen auf das Gesamtgewicht des Katalysators, beträgt, wobei das Verhältnis der Oberflächen des Aktivmetalls und des Katalysatorträgers
Abstract:
Verfahren zur Umsetzung einer organischen Verbindung in Gegenwart eines Katalysators, der als Aktivmetall Ruthenium alleine oder zusammen mit mindestens einem Metall der I., VII. oder VIII. Nebengruppe des Periodensystems, aufgebracht auf einem Träger, umfaßt, wobei der Träger einen mittleren Porendurchmesser von mindestens 50 nm und eine Oberfläche BET von höchstens 30 m /g aufweist und die Menge des Aktivmetalls 0,01 bis 30 Gew.-%, bezogen auf das Gesamtgewicht des Katalysators, beträgt, wobei das Verhältnis der Oberflächen des Aktivmetalls und des Katalysatorträgers