ORGANOHALOGEN COMPOUND HAVING CONJUGATED DOUBLE BOND, PROCESS FOR PREPARING ACETATE COMPOUND AND ALCOHOL COMPOUND THEREOF, AND COMPOUND USED TO SYNTHESIZE THE ORGANOHALOGEN COMPOUND

    公开(公告)号:EP4365159A1

    公开(公告)日:2024-05-08

    申请号:EP23205510.3

    申请日:2023-10-24

    摘要: The present invention relates to a process for preparing an organohalogen compound of the following general formula (5), wherein R2 represents a linear, branched, or aromatic monovalent hydrocarbon group having 1 to 10 carbon atoms, n is the number of methylene groups of 1 to 10, and X2 represents a halogen atom, the process comprising: obtaining a reaction product mixture by subjecting a (ω-halo-2-alkenyl)triphenylphosphonium halide compound of the following general formula (1), wherein n is as defined for the general formula (5) above, X1 and X2 represent, independently of each other, a halogen atom, and Ph represents a phenyl group, to a phosphorus ylide preparation reaction with an alkali metal alkoxide of the following general formula (3), wherein R1 represents a linear or branched alkyl group having 1 to 6 carbon atoms, and M represents an alkali metal atom, in the presence of a lithium halide of the following general formula (2), wherein X3 represents a halogen atom, and then subjecting the aforesaid reaction product mixture to a Wittig reaction with an aldehyde compound of the following general formula (4), wherein R2 is as defined for the general formula (5) above, to form the organohalogen compound of the general formula (5) above.

    TRANSVINYLIERUNG ALS ERSTE STUFE EINER KOPPELPRODUKTION VON VINYLESTERN UND ESSIGSÄURE- ODER PROPIONSÄUREFOLGEPRODUKTEN
    6.
    发明公开
    TRANSVINYLIERUNG ALS ERSTE STUFE EINER KOPPELPRODUKTION VON VINYLESTERN UND ESSIGSÄURE- ODER PROPIONSÄUREFOLGEPRODUKTEN 有权
    转载请注明出处:EINER KOPPELPRODUKTION VON VINYLESTERN UNDESSIGSÄURE-ODERPROPIONSÄUREFOLGEPRODUKTEN

    公开(公告)号:EP2812306A1

    公开(公告)日:2014-12-17

    申请号:EP13700621.9

    申请日:2013-01-18

    申请人: OXEA GmbH

    摘要: The invention relates to a method for the coupling production of acetic acid or propionic acid reaction products and a vinyl ester of formula R-C(O)O-CH = CH2
    by a transvinylation reaction of a carboxylic acid of formula R-C(O)OH with a transvinylation reagent of formula R
    1 -C(O)O-CH = CH
    2 wherein R represents an aliphatic, cycloaliphatic or aromatic radical and R
    1 is methyl or ethyl and the transvinylation reaction is continuously carried out without removing a reaction partner in the presence of a transition metal catalyst containing at least one transition metal selected from the group comprising ruthenium, osmium, rhodium, iridium, palladium and platinum, the obtained reaction mixture being separated from its components, the vinyl ester of formula R-C(O)O-CH = CH2 and the carboxylic acid of formula R
    1 -C(O)-OH being separated and the thus obtained carboxylic acid R
    1 -C(O)-OH being converted into a derivative of formula R
    1 -C(O)-X, R
    1 -CH
    2 -OH or R
    6 -C(O)-OH.

    摘要翻译: 通过式R-C(O)OH的羧酸与式R1-C(O)的转乙烯化试剂的反式化反应共同制备式R-C(O)O-CH = CH 2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,而不会在过渡金属存在下撤离反应物 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是取代或未取代的具有1至10个碳原子的烃基,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至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是部分或全部卤素取代的 R1激进。