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    • 2. 发明申请
    • Transvinylation as a First Stage of Coupling Production of Vinyl Esters and Acetic Acid or Propionic Acid Reaction Products
    • 作为乙烯基酯和乙酸或丙酸反应产物的偶联生产的第一阶段的转乙烯化
    • US20140357881A1
    • 2014-12-04
    • US14372235
    • 2013-01-18
    • Oxea GmbH
    • Leif JohnenHeinz Strutz
    • C07C67/333
    • C07C67/333C07C29/149C07C51/02C07C51/09C07C51/363C07C67/055C07C67/08C07C67/10C07C67/54C07C69/01C07C69/24C07C69/78C07C53/16C07C53/19C07C69/15C07C31/08C07C31/10C07C53/40C07C53/42C07C53/12C07C53/122C07C53/08C07C69/14
    • Process for coproduction of a vinyl ester of the formula R—C(O)O—CH═CH by transvinylation reaction of a carboxylic acid of the formula R—C(O)OH with a transvinylating reagent of the formula R1—C(O)O CH═CH2, characterized in that (a) the transvinylation reaction is conducted continuously at a temperature of 90 to 160° C. and at a pressure of 0.5 to 15 MPa without withdrawal of a reactant in the presence of a transition meta/catalyst containing at least one transition metal selected from the group of ruthenium, osmium, rhodium, iridium, palladium and platinum; (b) the resulting reaction mixture is separated into its constituents and the vinyl ester of the formula R—C(O)O—CH═CH2 and the carboxylic acid of the formula R1—C(O)—OH are removed; and (c) the carboxylic acid obtained after step (b) is converted to a derivative of the formula R1—C(O)—X, R1—CH2—OH or R6—C(O)—OH in which X is vinyloxy, O—CH—CH2, halogen, alkoxy of the formula OR2 in which R2 is a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, amino of the formula NR3R4 in which R3 and R4 are each independently hydrogen or a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, or carboxyl of the formula O—C(O)—R5 in which R5 is hydrogen or a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, and R6 is the partly or fully halogen-substituted R1 radical.
    • 通过式R-C(O)OH的羧酸与式R1-C(O)的转乙烯化试剂的反缩合反应共同制备式R-C(O)O-CH = CH的乙烯基酯的方法 )O CH = CH 2,其特征在于:(a)在90至160℃的温度和0.5至15MPa的压力下连续进行转化反应,而不会在转移间/ 含有选自钌,锇,铑,铱,钯和铂中的至少一种过渡金属的催化剂; (b)将所得反应混合物分离成其组分,并且除去式R-C(O)O-CH = CH 2的乙烯基酯和式R 1 -C(O)-OH的羧酸; 和(c)将步骤(b)后获得的羧酸转化为其中X为乙烯氧基的式R 1 -C(O)-X,R 1 -CH 2 -OH或R 6 -C(O)-OH的衍生物, O-CH-CH 2,卤素,式OR 2的烷氧基,其中R 2是具有1至10个碳原子的取代或未取代的烃基,式NR 3 R 4的氨基,其中R 3和R 4各自独立地为氢或取代或未取代的烃基 具有1-10个碳原子的基团,或其中R 5是氢的式O-C(O)-R 5的羧基或具有1至10个碳原子的取代或未取代的烃基,R 6是部分或完全卤素取代的 R1激进。
    • 4. 发明授权
    • Method for separating a carboxylic acid in salified form bearing at least one halogen atom
    • 分离含有至少一个卤素原子的盐化形式的羧酸的方法
    • US08633336B2
    • 2014-01-21
    • US13003136
    • 2009-07-08
    • Olivier BuisineFrançois Metz
    • Olivier BuisineFrançois Metz
    • C07C53/21
    • C07C51/412C07C51/48C07C53/21C07C53/18C07C53/19C07C53/16
    • The subject of the present invention is a method for separating a carboxylic acid in salified form bearing at least one halogen atom at the α position of the carbonyl group from a medium comprising it. The method according to the invention, for separating a carboxylic acid in salified form bearing at least one halogen atom at the α position of the carbonyl group from an aqueous medium comprising it, is characterized by the fact that the latter is brought into contact with an onium salt leading to the formation of two phases: an organic phase comprising the salt resulting from the reaction of the salt of the carboxylic acid bearing at least one halogen atom at the α position of the carbonyl group and of the onium salt leading to the displacement of the cation from the carboxylic acid by the onium, an aqueous phase comprising the various salts, in particular the one resulting from the reaction of the cation of the carboxylic acid with the anion of the onium, and by the fact that the organic and aqueous phases are then separated and that the onium salt of the carboxylic acid is recovered from the organic phase.
    • 本发明的主题是在含有羰基的α位的至少一个卤原子的盐化形式的羧酸的分离方法。 根据本发明的方法,用于从含有它的水性介质中分离在羰基的α位上带有至少一个卤素原子的盐化形式的羧酸,其特征在于后者与 导致形成两相的有机相:包含由在羰基的α位上带有至少一个卤素原子的羧酸的盐与导致位移的鎓盐反应而产生的盐的有机相 的阳离子由羧酸由鎓形成,包含各种盐的水相,特别是由羧酸的阳离子与鎓的阴离子反应的水相,以及有机和水性 然后分离相,并从有机相中回收羧酸的鎓盐。