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公开(公告)号:US5410089A
公开(公告)日:1995-04-25
申请号:US54814
申请日:1993-04-29
申请人: Eugen Gehrer , Wolfgang Harder , Herbert Vogel , Bernhard Knuth , Klaus Ebel , Carsten Groening
发明人: Eugen Gehrer , Wolfgang Harder , Herbert Vogel , Bernhard Knuth , Klaus Ebel , Carsten Groening
CPC分类号: C07C45/00
摘要: A process for preparing dihydroxyacetone by condensation, catalyzed by a thiazolium ylide, of formaldehyde, wherein the reaction is carried out in a system composed of an aqueous phase and at least one organic liquid phase.
摘要翻译: 一种通过由噻唑鎓内鎓盐催化的甲醛缩合制备二羟基丙酮的方法,其中反应在由水相和至少一种有机液相组成的体系中进行。
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公开(公告)号:US5585496A
公开(公告)日:1996-12-17
申请号:US570557
申请日:1995-12-11
申请人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
发明人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
IPC分类号: B01J31/02 , C07B61/00 , C07C45/75 , C07C47/19 , C07C49/17 , C07D249/08 , C07D249/10 , C07D249/12 , C07D249/14 , C07D471/06
CPC分类号: C07C45/75
摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7 R.sup.8, an acyl group--COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.10 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 alkylene group, or a C.sub.7 -C.sub.14 aralkylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.
摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R 8,酰基-C COR 9或酯gr 其中R 5,R 6,R 7,R 8和R 9分别代表上述R 1的基团,R 10是C 1 -C 10烷基或任意取代的芳基或芳烷基,或者R 3和R 4一起形成 C3-C5亚烷基或C3-C5亚烯基或C6-C14亚烷基,或C7-C14亚芳基或C8-C14芳亚烷基桥连元件,A相当于具有一个或多个负电荷用于电中和的阴离子 的三唑鎓阳离子的电荷。
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公开(公告)号:US5508422A
公开(公告)日:1996-04-16
申请号:US286221
申请日:1994-08-05
申请人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
发明人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
IPC分类号: B01J31/02 , C07B61/00 , C07C45/75 , C07C47/19 , C07C49/17 , C07D249/08 , C07D249/10 , C07D249/12 , C07D249/14 , C07D471/06
CPC分类号: C07C45/75
摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7 R.sup.8, an acyl group --COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.30 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 arylene group, or a C.sub.7 -C.sub.14 aralkenylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.
摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R 8,酰基-COR 9或酯g 其中R 5,R 6,R 7,R 8和R 9为R 1,R 10为C 1 -C 30烷基或任选取代的芳基或芳烷基的基团,或者R 3和R 4一起形成 C 3 -C 5亚烷基或C 3 -C 5亚烯基或C 6 -C 14亚芳基或C 7 -C 14亚链烯基或C 8 -C 14亚烯基亚烷基桥连体,A相当于具有一个或多个负电荷的阴离子,用于电中和 三唑鎓阳离子的电荷。
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公开(公告)号:US5386062A
公开(公告)日:1995-01-31
申请号:US117314
申请日:1993-09-07
申请人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
发明人: Joaquim H. Teles , Johann-Peter Melder , Eugen Gehrer , Wolfgang Harder , Klaus Ebel , Carsten Groening , Regina Meyer
IPC分类号: B01J31/02 , C07B61/00 , C07C45/75 , C07C47/19 , C07C49/17 , C07D249/08 , C07D249/10 , C07D249/12 , C07D249/14 , C07C45/72
CPC分类号: C07C45/75
摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7R R.sup.8, an acyl group --COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.30 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 arylene group, or a C.sub.7 -C.sub.14 aralkylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.
摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R R 8,酰基-COR 9或酯 基团-COOR 10,其中R 5,R 6,R 7,R 8和R 9代表如上对R 1所述的基团,R 10是C 1 -C 30烷基或任选取代的芳基或芳烷基,或者R 3和R 4一起形成 C 3 -C 5亚烷基或C 3 -C 5亚烯基或C 6 -C 14亚芳基或C 7 -C 14亚烷基或C 8 -C 14亚烯基亚烷基桥连基团,A相当于具有一个或多个负电荷的阴离子,用于电中和电荷 三唑鎓阳离子。
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公开(公告)号:US5298668A
公开(公告)日:1994-03-29
申请号:US37884
申请日:1993-03-26
IPC分类号: B01J31/02 , C07B61/00 , C07C45/75 , C07C47/19 , C07D233/88 , C07D249/14 , C07D277/42 , C07C45/72
CPC分类号: C07D249/14 , C07C45/75
摘要: Arycolaldehyde, glyceraldehyde, C.sub.4 - and C.sub.5 -sugars or mixtures thereof are prepared in a self-condensation of formaldehyde by reacting formaldehyde or a formaldehyde donor in the presence of a mesoionic catalyst of the formula ##STR1## wherein X is nitrogen or CR.sup.3, Y is sulfur or selenium or NR.sup.4, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be identical or different and each can represent an aliphatic, aryl, aralkyl or heteroaryl group which is unsubstituted or which bears substituents which have only a negligible effect on the catalytic activity of said mesoionic catalyst, with the proviso that R.sup.2 together with R.sup.4 can form a C.sub.2 -C.sub.5 -alkylene or alkenylene bridge or a C.sub.6 -C.sub.14 -arylene bridge, and wherein R.sup.5 is hydrogen, the hydroxymethyl group -CH.sub.2 OH or the hydroxymethylhydroxymethyl group --CH(OH)(CH.sub.2 OH).
摘要翻译: 甲醛,甘油醛,C4-和C5-糖或其混合物在甲醛自缩合下通过甲醛或甲醛供体在式(*化学结构*)I的介质催化剂存在下反应制备,其中X是氮 或CR 3,Y是硫或硒或NR 4,并且R 1,R 2,R 3和R 4可以相同或不同,并且各自可以表示未被取代或具有仅具有可忽略的影响的取代基的脂族,芳基,芳烷基或杂芳基 关于所述介电催化剂的催化活性,条件是R 2与R 4一起可以形成C 2 -C 5亚烷基或亚烯基桥或C 6 -C 14亚芳基桥,并且其中R 5是氢,羟甲基-CH 2 OH或 羟甲基羟甲基-CH(OH)(CH2OH)。
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公开(公告)号:US5994562A
公开(公告)日:1999-11-30
申请号:US229996
申请日:1999-01-14
IPC分类号: B01J29/06 , B01J29/08 , B01J29/40 , B01J29/86 , C07B61/00 , C07C231/12 , C07C233/02 , C07D207/26 , C07D207/267 , C07D207/12 , C07C233/18 , C07C235/08
CPC分类号: C07D207/267 , B01J29/061
摘要: In a process for preparing N-alkenylcarboxamides by dehydration of N-(2-hydroxyalkyl)carboxamides and/or diethers thereof in the presence of a catalyst, molecular sieves, in particular zeolites, are used as catalyst.
摘要翻译: 在催化剂存在下,通过N-(2-羟基烷基)甲酰胺和/或其醚脱水制备N-链烯基酰胺的方法中,使用分子筛,特别是沸石作为催化剂。
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公开(公告)号:US5306847A
公开(公告)日:1994-04-26
申请号:US981318
申请日:1992-11-25
申请人: Eugen Gehrer , Wolfgang Harder
发明人: Eugen Gehrer , Wolfgang Harder
IPC分类号: B01J23/88 , C07B61/00 , C07C29/136 , C07C29/60 , C07C31/20 , C07C29/132 , C07C31/18
CPC分类号: C07C29/60
摘要: A process for the manufacture of 1,2-propylene glycol, wherein dihydroxyacetone is hydrogenolytically converted to 1,2-propylene glycol in a single stage using a catalyst.
摘要翻译: 制备1,2-丙二醇的方法,其中使用催化剂在一个阶段中将二羟基丙酮氢解转化为1,2-丙二醇。
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公开(公告)号:US5866733A
公开(公告)日:1999-02-02
申请号:US679666
申请日:1996-07-12
申请人: Eugen Gehrer , Klemens Massonne , Wolfgang Harder
发明人: Eugen Gehrer , Klemens Massonne , Wolfgang Harder
CPC分类号: C07C2/66 , C07C2529/08 , C07C2529/18 , C07C2529/70 , Y02P20/52 , Y02P20/544
摘要: Diarylethanes of the formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.8 -alkyl, are prepared by reacting benzene with a styrene of the formula III ##STR2## where R.sup.1 has the abovementioned meanings, by a process in which the reaction is carried out batchwise or continuously in the liquid or supercritical phase at from 150.degree. to 350.degree. C. and from 5 to 200 bar in the presence of a strongly acidic large-pore zeolite.
摘要翻译: 通过使苯与具有上述含义的式III的苯乙烯(III)反应,通过方法制备式I(I)的R 1是氢或C 1 -C 8 - 烷基的二芳基乙烷 其中在强酸性大孔沸石存在下,在150℃至350℃和5至200巴的液相或超临界相中分批或连续进行反应。
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公开(公告)号:US5118883A
公开(公告)日:1992-06-02
申请号:US728166
申请日:1991-07-10
申请人: Eugen Gehrer , Wolfgang Harder
发明人: Eugen Gehrer , Wolfgang Harder
IPC分类号: B01J23/46 , B01J23/70 , B01J25/02 , B01J27/18 , C07B61/00 , C07C29/00 , C07C29/38 , C07C31/20
摘要: A process is described for the preparation of propylene glycol and ethylene glycol from formaldehyde, the first step involving conversion of the formaldehyde into a mixture of polyhydroxyl compounds in a conventional manner in an alkaline medium by self-condensation and the second step involving catalytic hydrogenolysis of this mixture with a hydrogen consumption of at least 0.5 mol of hydrogen per mol of formaldehyde employed for forming the polyhydroxyl compounds.
摘要翻译: 描述了从甲醛制备丙二醇和乙二醇的方法,第一步涉及通过自缩合在常规方法中将甲醛转化为多羟基化合物的混合物,第二步涉及催化氢解 该混合物具有每摩尔用于形成多羟基化合物的甲醛至少0.5摩尔氢的氢消耗。
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公开(公告)号:US6046130A
公开(公告)日:2000-04-04
申请号:US55673
申请日:1998-04-07
IPC分类号: B01J23/04 , B01J23/00 , B01J23/02 , B01J23/78 , B01J23/80 , B01J23/835 , B01J23/86 , B01J27/045 , B01J27/051 , B01J27/08 , C07B61/00 , C07C2/66 , C07C2/72 , C07C15/02 , B01J23/40 , B01J23/58 , B01J23/72
CPC分类号: B01J23/02 , B01J23/005 , C07C2/72 , C07C2523/04 , C07C2527/02 , C07C2527/057 , C07C2527/06 , Y10S502/524
摘要: The catalyst comprising at least one alkali metal on a spinel or inverse spinel as carrier may be doped with at least one compound of an alkali metal and/or alkaline earth metal, where the alkali metal/carrier ratio by weight is from 0.01 to 5 and, when a dopant is present, the dopant/carrier ratio by weight is from 0.01 to 5.The spinel therein has formula (I) and the inverse spinel has formula (II)AB.sub.2 X.sub.4 (I)B(AB)X.sub.4 (II)whereA is divalent metal,B is tri- or tetravalent metal,X is O, S, Se, halogen, pseudohalogen,the charges being balanced, and A preferably being selected from Mg, Cr, Fe, Zn, Mn, Co, Ni, Cu, Cd, Sn and mixtures thereof, and B being selected from Al, Ga, In, Fe, V, Cr, Ti, Pb, Mn, Co, Rh, Ni, Si and mixtures thereof, and X being O.
摘要翻译: 包含在尖晶石或反尖晶石上的至少一种碱金属作为载体的催化剂可以掺杂有至少一种碱金属和/或碱土金属的化合物,其中碱金属/载体的重量比为0.01-5,和 当掺杂剂存在时,掺杂剂/载体的重量比为0.01至5.其中尖晶石具有式(I),并且反尖晶石具有式(II)AB2X4(I)B(AB)X4(II)其中 A是二价金属,B是三价或四价金属,X是O,S,Se,卤素,假卤素,电荷平衡,A优选选自Mg,Cr,Fe,Zn,Mn,Co,Ni, Cu,Cd,Sn及其混合物,B选自Al,Ga,In,Fe,V,Cr,Ti,Pb,Mn,Co,Rh,Ni,Si及其混合物,X为O.
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