Process for producing organic esters by reacting a carboxylic acid and a
dialkyl ether
    5.
    发明授权
    Process for producing organic esters by reacting a carboxylic acid and a dialkyl ether 失效
    通过羧酸和二烷基醚反应生产有机酯的方法

    公开(公告)号:US5214200A

    公开(公告)日:1993-05-25

    申请号:US869606

    申请日:1992-04-15

    申请人: Francis J. Waller

    发明人: Francis J. Waller

    IPC分类号: C07C67/24

    CPC分类号: C07C67/24

    摘要: The present invention is a process for producing organic esters wherein a dialkyl ether and a carboxylic acid are reacted in the presence of a catalyst consisting essentially of an iodide of a Group IA element under reaction conditions sufficient to form a reaction mixture comprising the desired organic ester and an alcohol and recovering the ester from the reaction product mixture. For example, methyl acetate can be prepared by reacting dimethyl ether and acetic acid in the presence of a hydrogen iodide or lithium iodide catalyst under conditions sufficient to form methyl acetate and methanol. While typical processes produce an azeotropic mixture of the desired organic ester and water, the claimed process utilizes a combination or reactants and catalysts wherein water is not produced in appreciable amounts. Therefore, the organic ester product can be separated conveniently thereby avoiding a cumbersome azeotropic distillation step as required in prior art processes.

    摘要翻译: 本发明是一种生产有机酯的方法,其中二烷基醚和羧酸在基本上由基本上由IA族元素的碘化物组成的催化剂的存在下反应,反应条件足以形成包含所需有机酯的反应混合物 和醇并从反应产物混合物中回收酯。 例如,可以在足以形成乙酸甲酯和甲醇的条件下,在碘化氢或碘化锂催化剂的存在下,使二甲醚和乙酸反应来制备乙酸甲酯。 虽然典型的方法产生期望的有机酯和水的共沸混合物,但是要求保护的方法利用组合或反应物和催化剂,其中水不以可观的量产生。 因此,有机酯产物可以方便地分离,从而避免了现有技术方法中所需的繁琐的共沸蒸馏步骤。

    Acid catalyzed formation of carbamates from olefins
    8.
    发明授权
    Acid catalyzed formation of carbamates from olefins 失效
    酸催化由烯烃形成氨基甲酸酯

    公开(公告)号:US4987248A

    公开(公告)日:1991-01-22

    申请号:US388401

    申请日:1989-08-02

    申请人: Francis J. Waller

    发明人: Francis J. Waller

    IPC分类号: C07C269/00

    CPC分类号: C07C269/00

    摘要: An improved for preparing N-substituted carbamate comprising reaction of a selected olefin or alcohol with a carbamate in the presence of a catalyst comprising a blend of a perfluorinated sulfonic acid polymer and a perfluorinated polymer diluent in a substantially nonpolar reaction mixture.

    摘要翻译: 改进的用于制备N-取代氨基甲酸酯的方法,包括在基本上非极性反应混合物中,在包含全氟化磺酸聚合物和全氟化聚合物稀释剂的共混物的催化剂存在下,选择的烯烃或醇与氨基甲酸酯的反应。

    Toluic acid
    9.
    发明授权
    Toluic acid 失效
    甲苯酸

    公开(公告)号:US4463103A

    公开(公告)日:1984-07-31

    申请号:US543348

    申请日:1983-10-19

    申请人: Francis J. Waller

    发明人: Francis J. Waller

    摘要: Process for oxidatively carbonylating toluene to toluic acid, at least 50 mol % of the toluic acid being the p-isomer, said process comprising contacting and reacting, at 110.degree.-250.degree. C., at a pressure of at least 500 psi (3.45 MPa), toluene, carbon monoxide, oxygen and the catalyst ingredients consisting essentially of(a) a compound of rhodium or iridium;(b) a sulfur oxy-acid or a Group Ia or IIa metal salt of a sulfur oxy-acid;(c) a sulfur oxy-acid or sulfur oxy-acid mixture having a Hammett acidity value (-H.sub.o) of greater than 7.0; and(d) a cupric salt of a sulfur oxy-acid;said catalyst ingredients containing 0.3-30 mol % of (a) and 70-99.7 mol % of (b+c+d), with the molar ratios (b/a) and (c/a) each being at least 2 and the molar ratio (d/a) being at least 0.5, and recovering toluic acid.

    摘要翻译: 将甲苯氧化羰基化为甲苯酸的方法,至少50摩尔%的甲苯甲酸为对异构体,所述方法包括在110-250℃下,在至少500psi(3.45 MPa),甲苯,一氧化碳,氧气和催化剂成分,主要由(a)铑或铱化合物组成; (b)硫氧基酸的硫氧基或Ia或IIa族金属盐; (c)哈米特酸值(-Ho)大于7.0的硫氧基酸或硫氧基酸混合物; 和(d)硫氧基酸的铜盐; 所述催化剂成分含有0.3-30摩尔%的(a)和70-99.7摩尔%的(b + c + d),摩尔比(b / a)和(c / a)各自为至少2, 摩尔比(d / a)至少为0.5,并回收甲苯甲酸。