[EN] PREPARATION OF HETEROCYCLIC KETONES<br/>[FR] PREPARATION DE CETONES HETEROCYCLIQUES
申请人:BASELL POLYOLEFINE GMBH
公开号:WO2004056796A1
公开(公告)日:2004-07-08
The present invention relates to a process for preparing heterocyclic ketones of the formulae (I) and (la), by reacting a heterocyclic compound of the formula (II), with an α,ß-unsaturated carboxylic acid of the formula (III), or with its anhydride of the formula (IV), where R1 is hydrogen or a C1-C40 carbon-containing group, R2 is hydrogen or a C1-C40 carbon-containing group, or R1 and R2 together form a cyclic ring system, R3 is a C1-C40 carbon-containing group and X is an element of the 16th group of the Periodic Table or is a divalent nitrogen group -(N-R4)-, where R4 is an electron-withdrawing radical which is selected from the group consisting of perhalogenated C1-C40 carbon-containing radicals and C1-C40 organosulfonyl groups.
本发明涉及一种制备式(I)和(Ia)的杂环酮的方法,通过将式(II)的杂环化合物与式(III)的α,ß-不饱和羧酸或其式(IV)的酐反应而得,其中R1为氢或C1-C40碳基团,R2为氢或C1-C40碳基团,或R1和R2一起形成一个环状环系统,R3为C1-C40碳基团,X为周期表第16族元素或是一个二价氮基团-(N-R4)-,其中R4是从全氟化的C1-C40碳基团和C1-C40有机磺酰基组成的一组中选择的电子吸引基。