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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: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: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:US06531629B1
公开(公告)日:2003-03-11
申请号:US09831362
申请日:2001-05-15
申请人: Matthias Eiermann , Christian Tragut , Klaus Ebel
发明人: Matthias Eiermann , Christian Tragut , Klaus Ebel
IPC分类号: C07C30316
CPC分类号: C07C303/16 , C07C309/04
摘要: The invention relates to a process for the prepartaion of alkanesulfonic acids, comprising the following steps: (a) oxidation of alkylmercaptans and/or dialkyl disulfides and/or dialkyl polysulfides having from three to nine sulfur atoms with nitric acid to form alkanesulfonic acids, water, nitrogen oxides and other byproducts, (b) regeneration of the nitrogen oxides obtained from step (a) with oxygen to give nitric acid and recycling of the nitric acid to step (a), where steps (a) and (b) are carried out in reaction chambers separate from one another.
摘要翻译: 本发明涉及一种预聚烷基磺酸的方法,包括以下步骤:(a)用硝酸将具有3-9个硫原子的烷基硫醇和/或二烷基二硫化物和/或二烷基多硫化物氧化形成烷烃磺酸,水 ,氮氧化物和其它副产物,(b)用氧气再生由步骤(a)获得的氮氧化物,得到硝酸并将硝酸再循环至步骤(a),其中步骤(a)和(b) 在反应室中彼此分离。
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公开(公告)号:US06362381B1
公开(公告)日:2002-03-26
申请号:US09946639
申请日:2001-09-06
申请人: Matthias Eiermann , Klaus Ebel
发明人: Matthias Eiermann , Klaus Ebel
IPC分类号: C07C20500
CPC分类号: C07B43/02 , C07C201/08 , C07C205/06
摘要: Aromatic hydrocarbons are nitrated by a process in which the aromatic hydrocarbon is reacted in the liquid phase with an oxide of nitrogen selected from NO, N2O3, NO2 and N2O4 and with an oxygen-containing gas stream in the presence of a heterogeneous oxidic catalyst, wherein at least 0.1 mol %, based on the aromatic hydrocarbon, of water is present at the beginning of the reaction.
摘要翻译: 通过芳烃在液相中与选自NO,N 2 O 3,NO 2和N 2 O 4的氮氧化物和含有异质氧化催化剂的含氧气流反应的方法进行硝化,其中 在反应开始时,存在至少0.1mol%的基于芳烃的水。
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公开(公告)号:US5866732A
公开(公告)日:1999-02-02
申请号:US916351
申请日:1997-08-22
申请人: Matthias Eiermann , Klaus Ebel
发明人: Matthias Eiermann , Klaus Ebel
CPC分类号: C07C17/08
摘要: Alkyl bromides are prepared from mixtures comprising aqueous hydrobromic acid and olefins in a process in which there is concentration of the aqueous hydrobromic acid present during the reaction.
摘要翻译: 在反应过程中存在浓度的氢溴酸水溶液的方法中,烷基溴化物由包含氢溴酸水溶液和烯烃的混合物制备。
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公开(公告)号:US6011182A
公开(公告)日:2000-01-04
申请号:US241300
申请日:1999-02-01
申请人: Matthias Eiermann , Klaus Ebel , Jorg Botzem
发明人: Matthias Eiermann , Klaus Ebel , Jorg Botzem
IPC分类号: B01J27/182 , C07B61/00 , C07C45/52 , C07C45/65 , C07C45/66 , C07C45/67 , C07C45/82 , C07C49/587 , C07C49/603 , C07C45/48
CPC分类号: C07C45/673 , C07C45/66
摘要: The present invention relates to a process for preparing 2-cyclo-alkenones of the formula I ##STR1## which comprises subjecting a 2-alkoxycycloalkanone and/or a 2-hydroxyalkanone ketal, in which n is an integer from 0 to 20, m is 0, 1, 2 or 3 and R is alkyl, alkylaryl, aryl, arylalkyl, alkenyl or alkynyl, to an elimination reaction in the gas phase on an acidic heterogeneous catalyst.
摘要翻译: 本发明涉及制备式I的2-环烯酮的方法,其包括使2-烷氧基环烷酮和/或2-羟基烷酮缩酮化合物,其中n为0至20的整数,m为0,1 ,2或3,R是烷基,烷基芳基,芳基,芳基烷基,烯基或炔基,用于酸性多相催化剂上的气相中的消除反应。
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