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公开(公告)号:US5783711A
公开(公告)日:1998-07-21
申请号:US750121
申请日:1997-02-20
IPC分类号: C07D307/12 , B01J23/34 , C07D309/06 , C07D315/00 , C07D307/02
CPC分类号: B01J23/34 , C07D309/06
摘要: Preparation of heterocyclic aldehydes I ##STR1## (A, B=optionally substituted methylene groups; m, n=1 to 5; m+n>2), by hydrogenation of carboxylic acids IIa ##STR2## or one of their esters IIb derived from a C.sub.1 -C.sub.10 alcohol, at a temperature of from 200.degree. to 450.degree. C. over a catalyst. The end products are suitable as intermediates for herbicides of the cyclohexanone class.
摘要翻译: PCT No.PCT / EP95 / 02071 Sec。 371日期1997年2月20日 102(e)日期1997年2月20日PCT提交1995年5月31日PCT公布。 WO95 / 33741 PCT出版物 日期1995年12月14日杂环醛的制备(I)(A,B =任选取代的亚甲基; + E,不同m + EE,+ E,不n + EE = 1〜5; + E, m + EE ++ E,uns n + EE> 2),通过羧酸IIa(IIa)或其衍生自C1-C10醇的酯IIb中的一种在200°至450°的温度下氢化 在催化剂上。 最终产品适合作为环己酮类除草剂的中间体。
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公开(公告)号:US5763676A
公开(公告)日:1998-06-09
申请号:US793055
申请日:1997-02-14
IPC分类号: B01J23/10 , C07B61/00 , C07C45/41 , C07C47/542 , C07C47/575 , C07C67/313 , C07C221/00 , C07C223/06 , C07C253/30 , C07C255/56
CPC分类号: C07C45/41 , B01J23/10 , C07C67/313
摘要: Aromatic aldehydes are prepared by catalytically reacting aromatic carboxylic acids or their esters with hydrogen in the gas phase at from 200.degree. to 450.degree. C. and from 0.1 to 20 bar in the presence of a zirconium dioxide/lanthanide catalyst having a high BET surface area of from 20 to 150 m.sup.2 /g, preferably from 40 to 150 m.sup.2 /g. The proportions by weight of the catalytically active mass range from 80 to 99.9% by weight of zirconium dioxide and from 0.01 to 20 %by weight of one or more lanthanide elements. This catalyst provides very high conversion rates of 94 to 100% together with a correspondingly high selectivity for the aldehyde product.
摘要翻译: PCT No.PCT / EP95 / 03167 Sec。 371日期1997年2月14日 102(e)1997年2月14日PCT PCT 1995年8月10日PCT公布。 公开号WO96 / 05161 日期1996年2月22日芳族醛通过在二氧化锆/镧系元素催化剂存在下,在200〜450℃和0.1-20巴的气相中使芳香族羧酸或其酯与氢气进行催化反应来制备, 高BET表面积为20至150m2 / g,优选为40至150m2 / g。 催化活性物质的重量比范围为80-99.9重量%的二氧化锆和0.01至20重量%的一种或多种镧系元素。 该催化剂提供94至100%的非常高的转化率以及醛产物相应的高选择性。
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3.
公开(公告)号:US5508465A
公开(公告)日:1996-04-16
申请号:US373420
申请日:1995-01-17
IPC分类号: B01J23/755 , C07B61/00 , C07C253/30 , C07C255/24
CPC分类号: C07C253/30
摘要: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures in the presence of a catalyst in the gas phase by a process which comprises carrying out the hydrogenation with a catalyst based on at least one metal selected from the group consisting of nickel, cobalt, ruthenium and rhodium and with the proviso that the catalyst is not a powder.
摘要翻译: 脂肪族α,ω-氨基腈通过脂肪族α,ω-二腈在升高的温度下在催化剂存在下在气相中的部分氢化制备,所述方法包括使用基于至少一种金属的催化剂进行氢化 来自镍,钴,钌和铑组成的组,条件是催化剂不是粉末。
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公开(公告)号:US5679869A
公开(公告)日:1997-10-21
申请号:US567749
申请日:1995-12-05
IPC分类号: B01J23/10 , B01J23/06 , C07B61/00 , C07C45/41 , C07C47/02 , C07C47/105 , C07C47/14 , C07C47/19 , C07C47/198 , C07C47/228 , C07C47/28
摘要: A process for preparing aldehydes of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -alkylphenyl, C.sub.7 -C.sub.12 -phenylalkyl and R.sup.1 and R.sup.2 are joined together to form a 3-, 4-, 5-, 6- or 7-membered cycloaliphatic ring, R.sup.1 and R.sup.3 are each C.sub.1 -C.sub.4 -alkoxy, phenoxy, methylamino, dimethylamino or halogen, and R.sup.1 is additionally hydroxyl or amino comprises reacting a carboxylic acid or ester of the general formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are each as defined above, and R.sup.4 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, aryl, C.sub.7 -C.sub.12 -alkylphenyl or C.sub.7 -C.sub.12 -phenylalkyl, with hydrogen in the gas phase at temperatures from 200.degree. to 450.degree. C. and pressures from 0.1 to 20 bar in the presence of a catalyst whose catalytically active mass comprises from 60 to 99.9% by weight of zirconium oxide and from 0.1 to 40% by weight of one or more elements of the lanthanides.
摘要翻译: 制备通式I(I)的醛的方法,其中R1,R2和R3各自为氢,C1-C6烷基,C3-C8-环烷基,芳基,C7-C12-烷基苯基,C7-C12- 苯基烷基和R 1和R 2连接在一起形成3-,4-,5-,6-或7-元环脂族环,R 1和R 3各自为C 1 -C 4 - 烷氧基,苯氧基,甲基氨基,二甲基氨基或卤素,R 1 另外羟基或氨基包括使通式II(II)的羧酸或酯与其中R 1,R 2和R 3各自如上所定义,R 4是氢,C 1 -C 6烷基,C 3 -C 8 - 环烷基,芳基,C 7 -C 12 - 烷基苯基或C 7 -C 12 - 苯基烷基,在气相中的氢气在200-450℃的温度和0.1至20巴的压力下,在催化剂存在下,其催化活性质量包含 60至99.9重量%的氧化锆和0.1至40重量%的一种或多种镧系元素。
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公开(公告)号:US6140545A
公开(公告)日:2000-10-31
申请号:US251462
申请日:1999-02-17
IPC分类号: C07C29/149 , C07C37/08
CPC分类号: C07C29/149 , C07C2101/14
摘要: In a process for preparing alcohols by gas phase hydrogenation of carboxylic acids or esters thereof at elevated temperature and elevated pressure in the presence of catalysts consisting of or comprising, as hydrogenating components, oxides of main group VI and/or subgroup IV, the hydrogenation is carried outa) at from 250.degree. C. to 400.degree. C. and from 5 bar to 100 bar in the presence ofb) primary or secondary alcohols, the molar hydrogen/alcohol ratio being at most 800.
摘要翻译: 在通过在升高的温度和升高的压力下,在由主要VI族和/或第IV族的氧化物组成或包含氢化组分的催化剂存在下,在羧酸或其酯的气相氢化制备醇的方法中,氢化是 在b)伯醇或仲醇的存在下,在250℃至400℃和5巴至100巴下进行a),氢/醇摩尔比为至多800。
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6.
公开(公告)号:US6147208A
公开(公告)日:2000-11-14
申请号:US91130
申请日:1998-06-16
申请人: Gunther Achhammer , Peter Bassler , Rolf Fischer , Eberhard Fuchs , Hermann Luyken , Werner Schnurr , Guido Voit , Lutz Hilprecht
发明人: Gunther Achhammer , Peter Bassler , Rolf Fischer , Eberhard Fuchs , Hermann Luyken , Werner Schnurr , Guido Voit , Lutz Hilprecht
IPC分类号: C07C209/48 , C07C209/86 , C07C211/12 , C07D201/08 , C07D201/02
CPC分类号: C07D201/08 , C07C209/48 , Y02P20/52
摘要: Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile.
摘要翻译: PCT No.PCT / EP96 / 05521 Sec。 371日期:1998年6月16日 102(e)日期1998年6月16日PCT 1996年12月11日PCT公布。 公开号WO97 / 23454 日期1997年7月3日由己二腈起始制备己内酰胺和六亚甲基二胺。
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公开(公告)号:US5801268A
公开(公告)日:1998-09-01
申请号:US846240
申请日:1997-04-28
申请人: Klemens Flick , Johann-Peter Melder , Werner Schnurr , Klaus Ebel , Tom Witzel , Wolfgang Harder , Alwin Rehfinger , Rolf Fischer
发明人: Klemens Flick , Johann-Peter Melder , Werner Schnurr , Klaus Ebel , Tom Witzel , Wolfgang Harder , Alwin Rehfinger , Rolf Fischer
IPC分类号: B01J23/76 , B01J23/78 , B01J23/889 , B01J37/02 , C07C253/30 , C07C255/24 , C07C255/03
CPC分类号: B01J23/76 , B01J23/78 , B01J23/8892 , B01J23/8898 , B01J37/0201 , C07C253/30
摘要: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal, with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.
摘要翻译: 脂肪族α,ω-氨基腈通过脂肪族α,ω-二腈在升高的温度和超大气压下,在溶剂和催化剂存在下通过包括使用(a)含有基于化合物的催化剂 在选自镍,钴,铁,钌和铑的金属上,和(b)含有基于(a)0.01至25重量%的基于选自以下的金属的促进剂: 钯,铂,铱,锇,铜,银,金,铬,钼,钨,锰,铼,锌,镉,铅,铝,锡,磷,砷,锑,铋和稀土金属和(c) 基于(a),基于碱金属或碱土金属的化合物为0至5重量%,条件是组分(a)不以铁或铁为基准,并且所选择的金属之一 来自由钴,钌和铑组成的组 母体(b)是基于选自钛,锰,铬和钼的金属的促进剂,进一步的条件是当仅基于钌或铑或钌和铑或镍和铑的化合物为 作为组分(a)选择,可以不用启动子(b)。
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公开(公告)号:US5412120A
公开(公告)日:1995-05-02
申请号:US158361
申请日:1993-11-29
IPC分类号: C07C67/475 , C07D309/08 , C07D315/00
CPC分类号: C07C67/475 , C07D309/08
摘要: A process for preparing monocarboxylic esters of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.8 -cyclo-alkyl acyl, aryl or C.sub.7 -C.sub.20 -aralkyl or together --(CH.sub.2).sub.n --X--(CH.sub.2).sub.m --,X is methylene, oxygen, sulfur, NH or NR.sup.3,R.sup.3 is C.sub.1 -C.sub.12 -alkyl, andn and m are each from 0 to 8, comprises reacting geminal dicarboxylic esters of the general formula II ##STR2## where R.sup.1 to R.sup.3 are each as defined above, at from 150.degree. to 400.degree. C. in the presence of catalysts.
摘要翻译: 一种制备通式I的单羧酸的方法,其中R 1和R 2各自为氢,C 1 -C 12 - 烷基,C 3 -C 8 - 环烷基酰基,芳基或C 7 -C 20 - 芳烷基或一起 - (CH 2 )nX-(CH 2)m - ,X是亚甲基,氧,硫,NH或NR 3,R 3是C 1 -C 12烷基,n和m各自为0至8,包括使通式II的偕二羧酸酯 其中R 1至R 3各自如上所定义,在150℃至400℃下,在催化剂存在下。
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9.
公开(公告)号:US5466831A
公开(公告)日:1995-11-14
申请号:US99232
申请日:1993-07-29
IPC分类号: C07D307/33 , C07D307/12
CPC分类号: C07D307/33
摘要: A process for the preparation of 3-(2'-acyloxyethyl)-dihydro-2(3H)furanones of the general formula I ##STR1## in which R.sup.1 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl, in which a 3-(2'-oxyethyl)-dihydro-2(3H)furanone of the general formula II ##STR2## in which R.sup.2 denotes C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.12 aralkyl, or C.sub.7 -C.sub.12 alkylaryl is caused to react with a carboxylic acid, a carboxylic anhydride, and/or an acyl halide in the presence of an acid catalyst at temperatures of from 50.degree. to 250.degree. C. and pressures of from 0.1 to 100 bar.
摘要翻译: 制备通式I,C5-C8环烷基,芳基,C7-C12芳烷基或C7-C12烷基芳基的3-(2'-酰氧基乙基) - 二氢-2(3H)呋喃酮的方法,其中3 - (2'-氧乙基) - 二氢-2(3H)呋喃酮,其中R 2表示C 1 -C 12烷基,C 5 -C 8环烷基,芳基,C 7 -C 12芳烷基或C 7 -C 12芳烷基, C12烷基芳基在酸催化剂存在下,在50-250℃,压力为0.1-100巴的条件下,与羧酸,羧酸酐和/或酰卤反应。
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10.
公开(公告)号:US5371246A
公开(公告)日:1994-12-06
申请号:US110219
申请日:1993-08-23
IPC分类号: B01J21/04 , C07B61/00 , C07D309/08 , C07D309/06
CPC分类号: C07D309/08
摘要: A process for the preparation of tetrahydropyran-4-carboxylic acid and esters thereof of the general formula I ##STR1## in which R.sup.1 denotes hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.8 cycloalkyl, or aryl by the reaction of a dihydro-2(3H)furanone of the general formula II ##STR2## in which R.sup.2 denotes hydrogen, C.sub.1 -C.sub.6 alkyl, or --CO--R.sup.3 andR.sup.3 denotes hydrogen or C.sub.1 -C.sub.6 alkyl, with water or an alcohol of the general formula IIIR.sup.1 --OH (III),in whichR.sup.1 has the aforementioned meaning,at temperatures ranging from 200.degree. to 350.degree. C. in the presence of a heterogenous acid catalyst, in which use is made of a fixed heterogenous acid catalyst.
摘要翻译: 制备通式I的四氢吡喃-4-羧酸及其酯的方法,其中R 1表示氢,C 1 -C 6烷基,C 5 -C 8环烷基或芳基,其中二氢 -2(3H)呋喃酮,其中R 2表示氢,C 1 -C 6烷基或-CO-R 3,R 3表示氢或C 1 -C 6烷基,其中R 2表示氢或C 1 -C 6烷基, 在异种酸催化剂的存在下,在200〜350℃的温度范围内,通式III的R1-OH(Ⅲ),其中R 1具有上述含义,其中使用固定的异种酸催化剂。
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