公开(公告)号：JP2002322102A

公开(公告)日：2002-11-08

申请号：JP2001132079

申请日：2001-04-27

Applicant: DAICEL CHEM

Inventor： NISHIYAMA SATORU ,  TANAKA YASUTAKA

IPC: C07C29/14 ,  C07B61/00 ,  C07C33/02

Abstract: PROBLEM TO BE SOLVED: To obtain the unsaturated straight-chain alcohols from unsaturated straight-chain aldehydes having a plurality of unsaturated bonds at a high conversion rate and with a high selectivity. SOLUTION: In the presence of a catalyst containing at least one species of metals selected from the group III, IV, IX, XIII and XIV of the periodic table and a secondary alcohol the corresponding unsaturated alcohols are prepared by selectively reducing the formyl group of unsaturated aldehydes having a plurality of unsaturated bonds without reducing the unsaturated carbon - carbon bonds. As the unsaturated aldehydes, C5-12 alkadienals (2,4-hexadienal and the like) can be employed.

公开(公告)号：JP2000044529A

公开(公告)日：2000-02-15

申请号：JP23121598

申请日：1998-08-03

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA ,  MIHO TAKUYA ,  YANAGII TOYOKAZU

IPC: C07C263/00 ,  C07C265/14 ,  C08G18/75

Abstract: PROBLEM TO BE SOLVED: To obtain an alicyclic diisocyanate composition for extremely activating a urethanization reaction, capable of providing a polyurethane having improved weather resistance, corrosion resistance, etc., by including an alicyclic diisocyanate compound containing a Lewis acid having low reactivity with an isocyanate group as a main component. SOLUTION: This composition comprises an alicyclic diisocyanate compound of formula II (e.g. 3-isocyanatomethyl-5,5-dimethylcyclohexyl isocyanate) obtained by reacting a dialkyl carbonate prepared without using phosgene with an alicyclic diamine of formula I (Y1 is a bifunctional saturated hydrocarbon, preferably a 1-10C alkylene) containing a Lewis acid (preferably a dialkyltin compound) as a main component. The amount of the Lewis acid added to the compound of formula II is preferably 1×10-8 to 1×10-2 equivalent based on 1 equivalent of NCO group. Consequently a polyurethane having excellent physical properties can be supplied.

公开(公告)号：JPH08319275A

公开(公告)日：1996-12-03

申请号：JP14942195

申请日：1995-05-24

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA ,  SAITO MORIHITO

IPC: C07D213/09 ,  B01J29/06 ,  B01J29/40 ,  B01J35/08 ,  C07B61/00 ,  C07D213/10 ,  C07D213/12

Abstract: PURPOSE: To obtain the subject compound useful as a raw material for synthesizing medicines and agrochemicals in remarkably improved yield by using a zeolite having a specific density as a reaction catalyst. CONSTITUTION: An aliphatic aldehyde (e.g. acetaldehyde) and/or ketone (e.g. actone) is condensed with ammonia in a gas phase using a zeolite having 0.5-1.0g/ml, preferably 0.6-0.9g/ml density after molding into pellets and 5.0-9.0 control index as a catalyst. Furthermore, the catalyst is preferably obtained by mixing zeolite powder with alumina, silica, diatomaceous earth used as a binder and molding the mixture into cylindrical pellets by a tablet press while controlling molding pressure.

公开(公告)号：JPH0840969A

公开(公告)日：1996-02-13

申请号：JP18033694

申请日：1994-08-01

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA

IPC: B01J23/88 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

Abstract: PURPOSE:To obtain a catalyst for producing acrolein by vapor phase catalytic oxidation of propylene using molecular oxygen. CONSTITUTION:This method for producing a catalyst is to mix a composition (1) of the general formula (Mo)a(Bi)b(Fe)c(X)d(Z)f(O)g. [X is Ni or Co and Z i s W, Be, Mg, S, Ca, Sr, Ba, Te, Se, Ce, Ge, Mn, Zn, Cr, Ag, Sb, Pb, As, B, P, Nb, Cu, Cd, Sn, Al, Zr or Ti; (a), (b), (c, (d), (f) or (g) represents atom ratio of each element and (b) is 0.1-10, (c) is 0 20, (d) is 0-20 and (f) is 0-4 when (a) is 12 and (g) is a number of atom necessary for satisfying a valency of each componentl with a composition (2) of the general formula, (A)m(Mo)n(O)p [A is K, Rb, Cs or Tl and (m), (n) and (p) are each an atomic ratio of each element and (n) is 1-9 and (p) is 3n+1 when (m) is 2] under heating, evaporate and bake the mixed composition. This method for producing acrolein is to use the catalyst.

公开(公告)号：JPH07324057A

公开(公告)日：1995-12-12

申请号：JP11644394

申请日：1994-05-30

Applicant: DAICEL CHEM

Inventor： TATSUMI HIROYUKI ,  TANAKA YASUTAKA

IPC: B01J23/42 ,  B01J23/755 ,  B01J23/86 ,  B01J25/02 ,  C07B61/00 ,  C07C209/16 ,  C07C209/26 ,  C07C211/05

Abstract: PURPOSE:To provide the method for producing the ethylamine, capable of reducing the load of drainage and improving the rate of employment by using by- produced ethanol as a raw material, and capable of effectively utilizing excessive ethanol or a solution containing the excessive ethanol, when the excessive ethanol or the solution is subjected to a combustion treatment, etc., on the dependence of conditions. CONSTITUTION:In the method for producing the ethylamine from acetaldehyde as a raw material, a solution system (a prereactor system) for aminating only ethanol is set to the front of a main solution system for aminating the acetaldehyde. The ethanol, ammonia in an amount not exceeding the whole molar number of the fed ethyl groups, preferably 1/3 to 10 times the molar number of the raw material ethanol, more preferably 1/2 to 3 times, and hydrogen gas in an amount not exceeding the molar number of the raw material acetaldehyde, more preferably 0.5-1 times the molar number of the raw material acetaldehyde, are charged in the prereactor system to aminate the ethanol. The reaction gas is subsequently introduced into a reactor for aminating the acetaldehyde or into the arbitrary site of a gas circulation system.

公开(公告)号：JPH01287062A

公开(公告)日：1989-11-17

申请号：JP20289

申请日：1989-01-04

Applicant: DAICEL CHEM

Inventor： YOKOTA SHIGERU ,  TANAKA YASUTAKA ,  MIYAKE HIROTO

IPC: B01J31/28 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96

Abstract: PURPOSE:To selectively obtain the subject compound industrially useful as polymers, etc., in a short time, by reacting an alcohol with carbon monoxide and oxygen in the presence of a specific bivalent copper salt and alkaline earth metal salt. CONSTITUTION:An alcohol (e.g. methanol or ethanol) is reacted with carbon monoxide and oxygen in the presence of a bivalent copper salt (e.g. cupric acetate or cupric chloride) which is a weak acid salt and/or halide and an alkaline earth metal salt (e.g., chloride or acetate of beryllium, magnesium or calcium) which is a weak acid salt and/or halide as a catalyst to afford the aimed carbonic acid ester. A halide of a platinum group compound (e.g. ruthenium, rhodium or palladium), etc. preferably palladium salt may be used as the above-mentioned catalyst component. Since the ratio of dissolved copper is high and the catalyst is homogeneously dissolved in a reaction solution to enhance the reaction rate, the above-mentioned method is advantageous.

公开(公告)号：JPH01125359A

公开(公告)日：1989-05-17

申请号：JP28444287

申请日：1987-11-11

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA ,  KOJIMA HIDETAKA

IPC: C07C263/04 ,  C07C67/00 ,  C07C241/00 ,  C07C265/00

Abstract: PURPOSE:To obtain the title compound, which is used as a starting substance for urethane or the like, through continuous operations for a long period of time without accumulation of undesired polymers by the pyrolysis of carbamate ester in the presence of a phosphite triester. CONSTITUTION:Isocyanate is produced by pyrolysis of a carbamate of the formula: R(NHCOOR')n (R, R' are aliphatic or alicyclic; n is 1-4) such as methyl carbamate in the presence of a phosphite triester such as triethyl phosphite or tributyl phosphite. The pyrolysis is carried out at 100-350 deg.C, preferably 180-300 deg.C. The amount of the phosphite triester is at a molar ratio 1/1,000-1/100 based on the starting substance.

公开(公告)号：JPS63162653A

公开(公告)日：1988-07-06

申请号：JP30987486

申请日：1986-12-26

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA ,  KOJIMA HIDETAKA

IPC: B01J27/13 ,  B01J27/00 ,  B01J31/00 ,  B01J31/04 ,  B01J31/20 ,  C07B61/00 ,  C07C51/00 ,  C07C51/12 ,  C07C51/48 ,  C07C57/30 ,  C07C67/00

Abstract: PURPOSE:To obtain the titled substance as a drug efficiency and advantageously, by reacting an alpha-phenylethyl alcohol derivative with carbon monoxide in the presence of three substances of a rhodium compound, an iodine compound and a specific iodine salt to give a reaction product and separating the reaction product by using an extracting solvent such as water, etc. CONSTITUTION:An alpha-phenylethyl alcohol derivative shown by formula I (R is H, alkyl, alkenyl or aryl) is reacted with carbon monoxide in the presence of a rhodium catalyst, hydrogen iodide or an iodine compound producing hydrogen iodide under the reaction condition and a neutral or basic iodine salt in a solvent such as preferably 1,4-dioxane, etc., at 30-130 deg.C, especially 60-100 deg.C to give an alpha-phenylpropionic acid derivative shown by formula II. Then the reaction solution is incorporated with water or water and an oxygen-containing organic compound (e.g. about 0.8-0.5 water and about 0.4-0.2 acetic acid based on 1 reaction solution) as an extracting solvent and separated into two phases to give the aimed compound.

公开(公告)号：JP2010099635A

公开(公告)日：2010-05-06

申请号：JP2008275816

申请日：2008-10-27

Applicant: Daicel Chem Ind Ltd ,  ダイセル化学工業株式会社

Inventor： TANAKA YASUTAKA ,  YANAGII TOYOKAZU

IPC: B01J23/78 ,  B01J23/86 ,  B01J37/18 ,  C07B61/00 ,  C07C45/29 ,  C07C47/07

CPC classification number: Y02P20/52

Abstract: PROBLEM TO BE SOLVED: To produce aldehyde from alcohol at high selectivity. SOLUTION: A solid catalyst is for synthesizing aldehyde by dehydrogenation reaction of alcohol. It includes copper as an active species, and the surface acid content by ammonia temperature-programmed desorption method is ≤0.10 mmol/g. In the solid catalyst, copper and an alkali metal and/or an alkaline earth metal co-catalyst can be supported on top of a carrier. The solid catalyst can be a catalyst in which a reduction activation processing is given to a precursor where a copper compound which is capable of generating a metal copper by reduction and an alkali metal and/or an oxide of an alkaline earth metal are supported. In this invention, the solid catalyst and alcohol are contacted and dehydrogenated to generate a corresponding aldehyde. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：以高选择性从醇生产醛。 解决方案：固体催化剂用于通过醇的脱氢反应合成醛。 它包括铜作为活性物质，氨温度程序解吸法的表面酸含量≤0.10mmol / g。 在固体催化剂中，铜和碱金属和/或碱土金属助催化剂可以负载在载体的顶部。 固体催化剂可以是其中负载还原活化处理的催化剂，其中负载能够通过还原产生金属铜的铜化合物和碱金属和/或碱土金属的氧化物被负载。 在本发明中，使固体催化剂和醇接触并脱氢生成相应的醛。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2000044918A

公开(公告)日：2000-02-15

申请号：JP23121398

申请日：1998-08-03

Applicant: DAICEL CHEM

Inventor： TANAKA YASUTAKA ,  MIHO TAKUYA ,  YANAGII TOYOKAZU

IPC: C08G18/75 ,  C09J175/04

Abstract: PROBLEM TO BE SOLVED: To obtain an adhesive composition having improved weathering resistance, corrosion resistance, and heat resistance by using an alicyclic polyisocyanate compound prepared from a dialkyl carbonate prepared by using substantially no phosgene in the course of the process and an alicyclic polyamine. SOLUTION: The alicyclic polyisocyanate compound is represented by formula I. The alicyclic polyamine is represented by formula II. In formulae I and II, Y1 is a divalent saturated aliphatic hydrocarbon group. The alicyclic polyisocyanate compound is substantially free from a chlorine compound derived from phosgene and therefore exerts very little an adverse effect of a chlorine compound on properties. Dimethyl carbonate made from carbon monoxide and methanol is cheap and is desirable as the dialkyl carbonate. The alicyclic polyisocyanate compound which can be desirably used is exemplified by 3- isocyanatomethyl-5,5-dimethylcyclohexyl isocyanate.