Preparation of N-substituted pyrazoles
    1.
    发明授权
    Preparation of N-substituted pyrazoles 失效
    N-取代吡唑的制备

    公开(公告)号:US5468871A

    公开(公告)日:1995-11-21

    申请号:US334613

    申请日:1994-11-07

    摘要: N-substituted-pyrazoles of the formula ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.12 -alkyl or C.sub.7 -C.sub.20 -alkyl, and R.sup.2, R.sup.3 and R.sup.4 independently denote hydrogen, C.sub.1 -C.sub.12 -alkyl, phenyl, C.sub.7 -C.sub.20 -alkylphenyl and C.sub.7 -C.sub.20 -phenylalkyl, are prepared by reacting a pyrazole of the formula ##STR2## wherein R.sup.2, R.sup.3 and R.sup.4 have the meanings above, with an alcohol or ether of the formulaR.sup.1 --O--R.sup.5 III,wherein R.sup.5 is hydrogen or R.sup.1, at a temperature of from 200.degree. to 550.degree. C. and a pressure of from 0.001 to 50 bar in the presence of a heterogeneous catalyst, preferably one which contains acid centers such as the oxides of aluminum, silicon, titanium and/or zirconium, optionally doped with phosphoric acid.

    摘要翻译: 其中R 1是C 1 -C 12 - 烷基或C 7 -C 20 - 烷基,R 2,R 3和R 4独立地表示氢,C 1 -C 12 - 烷基,苯基,C 7 -C 20 - 烷基苯基 和C 7 -C 20 - 苯基烷基,其通式如下:其中R2,R3和R4具有上述含义的吡唑与式R1-O-R5III的醇或醚反应制备,其中R 5是氢或 R1在200〜550℃的温度和0.001〜50巴的压力下,在非均相催化剂存在下,优选含有酸中心的铝,硅,钛和/或氧化物的氧化物 锆,任选掺杂有磷酸。

    Addition products of triazolium salts
    3.
    发明授权
    Addition products of triazolium salts 失效
    三唑鎓盐的加成产物

    公开(公告)号:US5508422A

    公开(公告)日:1996-04-16

    申请号:US286221

    申请日:1994-08-05

    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。

    Catalytic preparation of condensation products of formaldehyde
    4.
    发明授权
    Catalytic preparation of condensation products of formaldehyde 失效
    催化制备甲醛缩合产物

    公开(公告)号:US5386062A

    公开(公告)日:1995-01-31

    申请号:US117314

    申请日:1993-09-07

    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。

    Catalytic preparation of condensation products of formaldehyde
    5.
    发明授权
    Catalytic preparation of condensation products of formaldehyde 失效
    催化制备甲醛缩合产物

    公开(公告)号:US5585496A

    公开(公告)日:1996-12-17

    申请号:US570557

    申请日:1995-12-11

    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。

    Method for producing hydroxymethyl diphenyloxiranes and corresponding 1-azolylmethyl-1,2-diphenyloxiranes
    6.
    发明授权
    Method for producing hydroxymethyl diphenyloxiranes and corresponding 1-azolylmethyl-1,2-diphenyloxiranes 失效
    羟甲基二苯基环氧乙烷和相应的1-吡唑基甲基-1,2-二苯基环氧乙烷的制备方法

    公开(公告)号:US08604071B2

    公开(公告)日:2013-12-10

    申请号:US13147648

    申请日:2010-02-04

    摘要: The present invention relates to a method for producing 1-hydroxymethyl-1,2-diphenyloxiranes from 2,3-diphenylpropenals by means of epoxidation and reduction. The formation of objectionable by-products can be suppressed in that the reduction is started before the 2,3-5 diphenylpropenal is completely converted. The hydroxymethyl diphenyloxiranes represent valuable intermediate products for producing 1-azolylmethyl-1,2-diphenyloxiranes, wherein the latter can be easily produced from said intermediate products by introducing the azolyl group.

    摘要翻译: 本发明涉及通过环氧化和还原从2,3-二苯基丙烷生产1-羟甲基-1,2-二苯基环氧乙烷的方法。 可以抑制令人反感的副产物的形成,因为在2,3,5-二苯基丙烷完全转化之前还原开始。 羟甲基二苯基环氧乙烷代表产生1-噻唑基甲基-1,2-二苯基环氧乙烷的有价值的中间产物,其中后者可以通过引入唑基来容易地从所述中间产物产生。