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    Phosphine ligand promoted synthesis of tetraaryloxyalkane
    2.
    发明授权
    Phosphine ligand promoted synthesis of tetraaryloxyalkane 有权
    膦配体促进四芳氧基烷烃的合成

    公开(公告)号：US5973183A

    公开(公告)日：1999-10-26

    申请号：US134408

    申请日：1998-08-14

    申请人： Deborah Ann Haitko ,  Marsha Mottel Grade ,  Kathryn Lynn Longley ,  Robert Edgar Colborn

    发明人： Deborah Ann Haitko ,  Marsha Mottel Grade ,  Kathryn Lynn Longley ,  Robert Edgar Colborn

    IPC分类号： C07B61/00 ,  C07C41/60 ,  C07C43/32 ,  C07C68/00 ,  C07C69/96 ,  C07C329/04

    CPC分类号： C07C68/00 ,  C07C41/60

    摘要： Addition of phosphine ligands can produce high yields of tetraphenoxymethane, TPM, and diphenylcarbonate, DPC, in short reaction times and improved reaction rates by a copper-induced condensation of phenol and carbon disulfide, CS.sub.2. Either aromatic or aliphatic substituted phosphine ligands can be employed. The copper(I) oxide utilization is significantly improved in reactions containing phosphine ligands, such that yields exceeding 100% tetraphenoxymethane are observed. Some of the sulfur-containing byproduct is transferred to the phosphine in the form of phosphine sulfide.

    摘要翻译： 膦配体的添加可以在短的反应时间内产生高产率的四苯氧基甲烷，TPM和二苯基碳酸酯DPC，并且通过苯酚和二硫化碳CS2的铜诱导缩合来改善反应速率。 可以使用芳族或脂族取代的膦配体。 在含有膦配体的反应中，氧化铜（I）利用率显着提高，从而观察到产率超过100％的四苯氧基甲烷。 一些含硫​​副产物以硫化磷的形式转移到磷化氢。

    Method for removing impurities from oxidation products
    4.
    发明授权
    Method for removing impurities from oxidation products 有权
    从氧化产物中除去杂质的方法

    公开(公告)号：US06670487B1

    公开(公告)日：2003-12-30

    申请号：US10354402

    申请日：2003-01-30

    申请人： Robert Edgar Colborn ,  Farid Fouad Khouri

    发明人： Robert Edgar Colborn ,  Farid Fouad Khouri

    IPC分类号： C07D30789

    CPC分类号： C07C51/48 ,  C07C51/573 ,  C07C63/16 ,  C07C63/72 ,  C07C63/68

    摘要： Disclosed is a method for removing impurities from products derived from oxidation of an ortho-dialkylaromatic compound which comprises at least one step selected from the group consisting of extraction of an aqueous solution comprising aromatic dicarboxylic acid product with an organic solvent and extraction of an organic solution comprising aromatic anhydride product with an aqueous bicarbonate solution for a time period insufficient to allow hydrolysis of anhydride to acid.

    摘要翻译： 公开了一种从邻二烃基芳族化合物的氧化衍生的产物中除去杂质的方法，该方法包括至少一种选自以下的步骤：将芳族二羧酸产物与有机溶剂的水溶液萃取和萃取有机溶液 包括芳族酸酐产物与碳酸氢盐水溶液一段时间不足以使酸酐水解成酸。

    Method for improving selectivity for dialkyldichlorosilane
    5.
    发明授权
    Method for improving selectivity for dialkyldichlorosilane 失效
    提高二烷基二氯硅烷选择性的方法

    公开(公告)号：US06407276B1

    公开(公告)日：2002-06-18

    申请号：US09820025

    申请日：2001-03-29

    申请人： Larry Neil Lewis ,  Robert Edgar Colborn ,  John Matthew Bablin

    发明人： Larry Neil Lewis ,  Robert Edgar Colborn ,  John Matthew Bablin

    IPC分类号： C07F716

    CPC分类号： C07F7/16

    摘要： A method for forming a dialkyldichlorosilane, comprising reacting elemental silicon with an alkyl chloride using copper as a catalyst together with promoters zinc, tin, and a special promoter. The special promoter is silver, a silver compound, gold, a gold compound, or combinations thereof. The alkyl may be methyl such that the dialkyldichlorosilane is dimethyldichlorosilane and the alkyl chloride is methyl chloride. The reacting generates the dialkyldichlorosilane in accordance with a first selectivity for the dialkyldichlorosilane that exceeds a second selectivity for the dialkyldichlorosilane. The second selectivity is a selectivity for the dialkyldichlorosilane that would have existed had the special promoter been absent.

    摘要翻译： 一种形成二烷基二氯硅烷的方法，包括使用铜作为催化剂与促进剂锌，锡和特殊的促进剂一起使元素硅与烷基氯反应。 特殊促进剂是银，银化合物，金，金化合物或其组合。 烷基可以是甲基，使得二烷基二氯硅烷是二甲基二氯硅烷，并且烷基氯是甲基氯。 该反应根据对二烷基二氯硅烷的第二选择性的二烷基二氯硅烷的第一选择性产生二烷基二氯硅烷。 第二选择性是对于二烷基二氯硅烷的选择性，如果没有特殊促进剂，那么它将存在。