Process to make 2,3-dihalopropanols
    1.
    发明授权
    Process to make 2,3-dihalopropanols 失效
    制备2,3-二卤丙醇的方法

    公开(公告)号:US5744655A

    公开(公告)日:1998-04-28

    申请号:US667526

    申请日:1996-06-19

    摘要: A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly useful as Step (3) in a process to make epihalohydrin by: (1) reacting a 3-carbon hydrocarbon with an oxidizing agent to form acrolein; (2) reacting acrolein with a molecular halogen to form 2,3-dihalopropanal; (3) reducing 2,3-dihalopropanal to form 2,3-dihalopropanol; and (4) cyclizing 2,3-dihalopropanol to make epihalohydrin. The process produces epihalohydrin using only about one mole of halogen per mole of epihalohydrin. It also uses substantially less water than existing processes.

    摘要翻译: 在含过渡金属的催化剂存在下,在形成2,3-二卤丙醇的条件下,通过2,3-二卤代丙醛与氢化剂反应制备2,3-二卤丙醇。 在通过以下步骤制备表卤代醇的方法中,作为步骤(3)特别有用:(1)使3-碳烃与氧化剂反应形成丙烯醛; (2)使丙烯醛与分子卤素反应形成2,3-二卤代丙醛; (3)还原2,3-二卤丙醛以形成2,3-二卤丙醇; 和(4)环化2,3-二卤丙醇以制备表卤代醇。 该方法使用每摩尔表卤代醇仅使用约1摩尔卤素产生表卤代醇。 它还使用比现有工艺少得多的水。

    Process for making 2,3-dihalopropanols
    2.
    发明授权
    Process for making 2,3-dihalopropanols 失效
    制备2,3-二卤代丙醇的方法

    公开(公告)号:US6008419A

    公开(公告)日:1999-12-28

    申请号:US994208

    申请日:1997-12-19

    摘要: A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with molecular hydrogen in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly useful, for example, as Step (3) in a process to make epihalohydrin which may be generally prepared by:(1) reacting a 3-carbon hydrocarbon with an oxidizing agent to form acrolein;(2) reacting acrolein with a molecular halogen to form 2,3-dihalopropanal;(3) reducing 2,3-dihalopropanal with molecular hydrogen to form 2,3-dihalopropanol; and(4) cyclizing 2,3-dihalopropanol to make epihalohydrin.The process produces epihalohydrin using only about one mole of halogen per mole of epihalohydrin. It also uses substantially less water than existing processes.

    摘要翻译: 在含过渡金属的催化剂的存在下,在形成2,3-二卤代丙醇的条件下,通过2,3-二卤代丙醛与分子氢反应制备2,3-二卤丙醇。 该反应特别有用,例如作为制备表卤代醇的方法中的步骤(3),其通常可通过以下制备:(1)使3-碳烃与氧化剂反应形成丙烯醛; (2)使丙烯醛与分子卤素反应形成2,3-二卤代丙醛; (3)用分子氢还原2,3-二卤代丙醛,形成2,3-二卤代丙醇; 和(4)环化2,3-二卤丙醇以制备表卤代醇。 该方法使用每摩尔表卤代醇仅使用约1摩尔卤素产生表卤代醇。 它还使用比现有工艺少得多的水。

    Process for preparing hydroxyalkylbenzocyclobutenes
    3.
    发明授权
    Process for preparing hydroxyalkylbenzocyclobutenes 失效
    制备羟烷基苯并环丁烯的方法

    公开(公告)号:US5349095A

    公开(公告)日:1994-09-20

    申请号:US982213

    申请日:1992-11-25

    摘要: A process for preparing a substituted or unsubstituted 3- or 4-hydroxyalkylbenzocyclobutene compound comprises reducing a corresponding 3- or 4-formyl or ketobenzocyclobutene compound with a hydride at a temperature below that at which dimerization or oligomerization of the formyl- or ketobenzocycloutene compound or the thus-produced hydroxyalkylbenzocyclobutene compound is a significant side reaction, for a time sufficient to convert the formyl- or ketobenzocyclobutene compound to the hydroxyalkylbenzocyclobutene compound. In a two-step process, formylbenzocyclobutenes are prepared from bromobenzocyclobutenes in 90% yield or from benzocyclobutenes in a 70% yield, and then converted to hydroxymethylbenzocyclobutenes for an overall yield of about 85% from a bromobenzocyclobutene or of about 65% from a benzocyclobutene. In a two-step process, ketobenzocyclobutenes from bromobenzocyclobutene Grignard reagents and an N-alkanoyl- or N-aroyl-2-methylaziridine are converted to hydroxyalkylbenzocyclobutenes in high yields.

    摘要翻译: 取代或未取代的3-或4-羟基烷基苯并环丁烯化合物的方法包括在低于甲酰基或酮基苯并环丁烯化合物的二聚或低聚的温度下用氢化物还原相应的3-或4-甲酰基或酮基苯并环丁烯化合物或 因此产生的羟烷基苯并环丁烯化合物是足够将甲酰基或酮基苯并环丁烯化合物转化为羟烷基苯并环丁烯化合物的显着副反应。 在两步法中,甲酰基苯并环丁烯由90%产率的溴代苯并环丁烯或70%产率的苯并环丁烯制备,然后从溴代苯并环丁烯转化为羟甲基苯并环丁烯,总产率为约85%,或从苯并环丁烯转化为约65%。 在两步法中,来自溴苯并环丁烯格氏试剂和N-烷酰基或N-芳酰基-2-甲基氮丙啶的酮基苯并环丁烯以高产率转化为羟基烷基苯并环丁烯。

    Bisbenzocyclobutene compounds with hydrophobic substituents, a method
for making same
    5.
    发明授权
    Bisbenzocyclobutene compounds with hydrophobic substituents, a method for making same 失效
    具有疏水取代基的双苯并环丁烯化合物,其制备方法

    公开(公告)号:US5354929A

    公开(公告)日:1994-10-11

    申请号:US128611

    申请日:1993-09-28

    IPC分类号: C07C13/44 C07C13/00

    CPC分类号: C07C13/44 C07C2102/06

    摘要: The invention is a bis-BCB compound of the structure: ##STR1## a method for making same and polymers made therefrom. The novel compounds of this invention are useful in preparing polymers that can form thin film coatings for multichip midules (MCMs) and integrated circuits (ICs). These compounds can be isolated as liquids at room temperature, and can form polymers that are hydrophobic and have low dielectrical and dissipative properties.

    摘要翻译: 本发明是一种双-BCB化合物,其结构如下:< IMAGE>其制备方法和由其制备的聚合物。 本发明的新型化合物可用于制备可形成多芯片(MCM)和集成电路(IC)的薄膜涂层的聚合物。 这些化合物可以在室温下作为液体分离,并且可以形成疏水性且具有低介电性和耗散性的聚合物。

    Process for preparing ester of hydroxymethylbenzocyclobutenes
    6.
    发明授权
    Process for preparing ester of hydroxymethylbenzocyclobutenes 失效
    制备羟甲基苯并环丁烯酯的方法

    公开(公告)号:US5264613A

    公开(公告)日:1993-11-23

    申请号:US861700

    申请日:1992-04-10

    摘要: A process for preparing carboxylic acid esters of of the formulaX--(COOCH.sub.2 A).sub.nwherein A is the residue of a substituted or unsubstituted 3- or 4-benzocyclobutene compound, X is an n-valent organic bridging group, and n is 2,3, or 4, comprises reacting a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound with a compound of the formula X--(COY).sub.n, wherein X is an n-valent organic bridging group and Y is Cl or Br. Esters of inorganic acids of the formulaX'(OCH.sub.2 A).sub.nwherein X' is a residue of an inorganic acid halide, n is 2 or 3, and A is the residue of a substituted or unsubstituted 3- or 4-benzocyclobutene compound, are prepared by reacting an inorganic halide of the formula X'Y.sub.n, wherein Y is Br or Cl, with a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound. Biscarbonates of the formula X"[OC(.dbd.O)CH.sub.2 A].sub.2 wherein X" is the residue of a diphenol are prepared by reaction between a bis(halocarbonyl) compound of the formula X"[OC(.dbd.O)Y].sub.2, wherein Y is Cl or Br, and a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound. The resulting esters are useful for making resins.

    摘要翻译: 一种制备式X-(COOCH 2 A)n的羧酸酯的方法,其中A是取代或未取代的3-或4-苯并环丁烯化合物的残基,X是n价有机桥基,n是2, 3或4包括使取代或未取代的3-或4-羟甲基苯并环丁烯化合物与式X-(COY)n的化合物反应,其中X为n价有机桥基,Y为Cl或Br。 式X'(OCH 2 A)n的无机酸的酯,其中X'为无机酰卤的残基,n为2或3,A为取代或未取代的3-或4-苯并环丁烯化合物的残基,为 通过使式X'Yn的无机卤化物(其中Y是Br或Cl)与取代或未取代的3-或4-羟甲基苯并环丁烯化合物反应制备。 式X“[OC(= O)CH 2 A] 2的双碳酸酯,其中X”是二酚的残基,通过式X“[OC(= O)Y ] 2,其中Y是Cl或Br,以及取代或未取代的3-或4-羟甲基苯并环丁烯化合物。 所得的酯可用于制备树脂。

    Process for nitrating benzocyclobutene compounds
    7.
    发明授权
    Process for nitrating benzocyclobutene compounds 失效
    硝化苯并环丁烯化合物的方法

    公开(公告)号:US5210339A

    公开(公告)日:1993-05-11

    申请号:US868812

    申请日:1992-04-15

    IPC分类号: C07C205/06 C07C205/42

    CPC分类号: C07C201/08 C07C2101/04

    摘要: An improved process for the nitration of a substituted or unsubstituted benzocyclobutene compound in a reaction mixture comprising a nitrating agent, an unhalogenated carboxylic acid anhydride, clay and a solvent to produce a corresponding nitrobenzocyclobutene compound, is that wherein:(a) the solvent has a density above that of the nitrating agent or an extractable precursor thereof;(b) the reaction mixture is heated at a temperature such that solvent is removed from the reaction mixture to a site outside the reaction mixture to extract nitrating agent or extractable precursor thereof; and(c) the thus-extracted nitrating agent or precursor thereof is fed into the reaction mixture to nitrate the benzocyclobutene compound.

    摘要翻译: 在包含硝化剂,未卤化羧酸酐,粘土和溶剂以产生相应的硝基苯并环丁烯化合物的反应混合物中硝化取代或未取代的苯并环丁烯化合物的改进方法是其中:(a)溶剂具有 浓度高于硝化剂或其可萃取的前体; (b)将反应混合物在使反应混合物中除去溶剂至反应混合物外的位置的温度下加热以提取硝化剂或其可萃取的前体; 和(c)将由此提取的硝化剂或其前体进料到反应混合物中以使苯并环丁烯化合物硝酸化。

    Process for preparing 3-chloromethylbenzo-cyclobutene
    8.
    发明授权
    Process for preparing 3-chloromethylbenzo-cyclobutene 失效
    3-氯甲基苯并环丁烯的制备方法

    公开(公告)号:US5099083A

    公开(公告)日:1992-03-24

    申请号:US655872

    申请日:1991-02-14

    IPC分类号: C07C17/32

    CPC分类号: C07C17/32 C07C2102/06

    摘要: 3-chloromethylbenzocyclobutene is prepared by reacting benzocyclobutene with chloromethyl methyl ether in the presence of stannic chloride at a temperature of about -120.degree. C. to about -40.degree. C. and neutralizing the resulting reaction mixture comprising 3-chloromethylbenzocyclobutene at a temperature of about -80.degree. C. to about -70.degree. C.

    摘要翻译: 在氯化锡存在下,在约-120℃至约-40℃的温度下,使苯并环丁烯与氯甲基甲基醚反应制备3-氯甲基苯并环丁烯,并将所得到的包含3-氯甲基苯并环丁烯的反应混合物在约 -80℃至约-70℃

    Substituted thiadiazoles, compositions containing them and their use as
antimicrobial and marine antifouling agents
    9.
    发明授权
    Substituted thiadiazoles, compositions containing them and their use as antimicrobial and marine antifouling agents 失效
    取代的噻二唑,含有它们的组合物及其作为抗微生物剂和海洋防污剂的用途

    公开(公告)号:US5491155A

    公开(公告)日:1996-02-13

    申请号:US360497

    申请日:1994-12-21

    摘要: Substituted thiadiazoles which correspond to the formula: ##STR1## wherein X and Y each independently represents --Br, --Cl, --OCH.sub.3, --SCN, --OCH.sub.2 SCN, --SCH.sub.2 SCN, --OCH.sub.2 CH.sub.2 SCN or --SCH.sub.2 CH.sub.2 SCN, provided that at least one of X or Y represents --SCN, --OCH.sub.2 SCN, --SCH.sub.2 SCN, --OCH.sub.2 CH.sub.2 SCN or --SCH.sub.2 CH.sub.2 SCN are disclosed.These compounds have been found to exhibit antimicrobial and marine antifouling activity in industrial and commercial applications and compositions containing these compounds are so employed.

    摘要翻译: 对应于下式的取代的噻二唑:其中X和Y各自独立地表示-Br,-Cl,-OCH 3,-SCN,-OCH 2 SCN,-SCH 2 SCN,-OCH 2 CH 2 SCN或-SCH 2 CH 2 SCN,条件是X或 Y表示-SCN,-OCH 2 SCN,-SCH 2 SCN,-OCH 2 CH 2 SCN或-SCH 2 CH 2 SCN。 已经发现这些化合物在工业和商业应用中表现出抗微生物和海洋防污性,并且使用含有这些化合物的组合物。

    Dimercapto-1,3-dithiolo-2-one or thione maleimides, compositions
containing them and their use as antimicrobial and marine antifouling
agents
    10.
    发明授权
    Dimercapto-1,3-dithiolo-2-one or thione maleimides, compositions containing them and their use as antimicrobial and marine antifouling agents 失效
    二巯基-1,3-二硫代-2-酮或硫酮马来酰亚胺,含有它们的组合物及其作为抗微生物剂和海洋防污剂的用途

    公开(公告)号:US5466707A

    公开(公告)日:1995-11-14

    申请号:US360490

    申请日:1994-12-21

    摘要: Various 4,5-dimercapto-1,3-dithiolo-2-one or thione maleimides corresponding to the formula ##STR1## wherein R represents --H, phenyl, benzyl, phenethyl, a C.sub.1 -C.sub.10 straight or branched chain alkyl radical, a C.sub.3 -C.sub.10 cycloalkyl radical, a C.sub.1 -C.sub.10 straight or branched chain alkoxy radical, a C.sub.3 -C.sub.10 cycloalkoxy, an ester of the formula --CH.sub.2 CH.sub.2 O--C(O)--R.sup.1, wherein R.sup.1 represents a C.sub.1 -C.sub.5 straight or branched chain alkyl radical or a C.sub.3 -C.sub.5 cycloalkyl radical and Z represents oxygen or sulfur are disclosed.These compounds have been found to exhibit antimicrobial and marine antifouling activity in industrial and commercial applications and compositions containing these compounds are so employed.

    摘要翻译: 对应于式“IMAGE”的各种4,5-二巯基-1,3-二硫代-2-酮或硫酮马来酰亚胺,其中R表示-H,苯基,苄基,苯乙基,C1-C10直链或支链烷基, C 3 -C 10环烷基,C 1 -C 10直链或支链烷氧基,C 3 -C 10环烷氧基,式-CH 2 CH 2 O-C(O)-R 1的酯,其中R 1表示C 1 -C 5直链或支链烷基 自由基或C3-C5环烷基,Z表示氧或硫。 已经发现这些化合物在工业和商业应用中表现出抗微生物和海洋防污性,并且使用含有这些化合物的组合物。