The present application relates to a process for preparing a dicarboxylic acid or dicarboxylic ester according to general formula (IV) R1OOC-(CH2)m-CH2CH2-(CH2)y-COOR4 (IV), comprising the steps of subjecting alkenoic acid or alkenoate of formula (II) R1OOC-(CH2)m-CH=CH-(CH2)x-H (II) to a metathesis reaction in the presence of a metathesis catalyst to form a longer-chain alkenoic acid or alkenoate of formula (III) R1OOC-(CH2)m-CH=CH-(CH2)y-H (III) where x
本申请涉及一种根据通式(IV)R1OOC-(CH2)m-CH2CH2-(CH2)y-COOR4(IV)制备二羧酸或二羧酸酯的方法,包括以下步骤:将通式(II)R1OOC-(CH2)m-CH=CH-(CH2)x-H(II)的烯酸或烯酸酯在存在烯烃交换催化剂的情况下进行交换反应,形成通式(III)R1OOC-(CH2)m-CH=CH-(CH2)y-H(III)的长链烯酸或烯酸酯,其中x
[EN] PHOSPHORUS COMPOUNDS AND METHODS THEREOF<br/>[FR] COMPOSÉS PHOSPHORÉS ET LEURS PROCÉDÉS
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2022132048A1
公开(公告)日:2022-06-23
The disclosure concerns phosphorus compounds of formula (I), (II) and (III) and methods of synthesising these compounds. The phosphorus compound can be a cyclic phosphorus compound. The method comprises reacting a compound having two Michael acceptor groups with a hypophosphite ester, acid, salt or solvate thereof and an optional organosilicon compound. The diene can be a cyclodiene.
该披露涉及公式(I)、(II)和(III)的磷化合物及其合成方法。该磷化合物可以是环状磷化合物。该方法包括将具有两个迈克尔受体基团的化合物与次磷酸酯、酸、盐或其溶剂化物以及可选的有机硅化合物反应。二烯可以是环二烯。
[EN] A CATALYST FOR THE CARBONYLATION OF ALKENES<br/>[FR] CATALYSEUR POUR LA CARBONYLATION D'ALCÈNES
申请人:AGENCY SCIENCE TECH & RES
公开号:WO2017135897A1
公开(公告)日:2017-08-10
The present application relates to a metal complex of Formula (I) and a catalyst composition for the carbonylation of alkenes comprising the metal complex, wherein the metal is a group 10 element such as palladium, platinum or nickel, and the complex comprises a bidentate phosphine ligand. The present invention also relates to a process for the preparation of a dicarboxylic acid or ester thereof from an alkenoic acid or ester thereof, or a process for the preparation of a carboxylic acid or ester thereof from an alkene or alkenoic acid with high selectivity and activity using said metal complex or catalyst composition. The present application also relates to a method of preparing Nylon 6-6 comprising the step of copolymerising adipic acid with hexamethylenediamine.
该申请涉及一种公式(I)的金属配合物和用于烯烃羰基化的催化剂组合物,其中金属是第10族元素,如钯、铂或镍,配合物包括双膦配体。本发明还涉及一种从烯酸或其酯制备二羧酸或其酯的方法,或者一种使用所述金属配合物或催化剂组合物从烯烃或烯酸制备羧酸或其酯的高选择性和活性方法。本申请还涉及一种制备尼龙6-6的方法,其中包括将己二酸与己二胺共聚的步骤。
查看更多