申请人:PPG - SIPSY
公开号:EP1547997A1
公开(公告)日:2005-06-29
A process for the production of ene-amide derivatives represented by the formula (I)
wherein R1 and R2 and R3 are independently a hydrogen atom, an alkyl, a cycloalkyl, a cycloalkylalkyl, an alkylaryl, an aryl, a heterocycle, a cyano, an acyl, an alkoxy, an aryloxy, a carboxyl, a carbamoyl, -CONR5R6 (in which R5 and R6 are independently an alkyl, arylalkyl or aryl group) or -COOR5 group (in which R5 is an alkyl, alkylaryl or aryl group), said alkyl, cycloalkyl, cycloalkylalkyl, alkylaryl and aryl groups being substituted or not with a functional group or with R5; or R1 and R2 taken together, may form a ring (which terms includes mono-, di- and higher polycyclic ring systems); R3 has the same meanings as R1 or R3 is a hydroxyl, imidazolyl, N-acylimidazolyl, indolyl, N-acylindolyl group or one of the groups, - COR5, -OR5, -OCOR5, -NR5R6, -NHCOR5, -N(COR5)2, wherein R5 and R6 are independently an alkyl, alkylaryl or aryl group; R4 is a hydrogen atom, an alkyl, an aryl, an alkylaryl, said groups are substituted or not with a halogen atom as Cl, Br, or F; Y is a hydrogen atom or R4CO group; X is an oxygen atom or a leaving group and m is an integer 1 or 2; when m is 1 then X is a leaving group; when m is 2 then X is a oxygen atom, which comprise : a hydrogenation/isomerization reaction in presence of a heterogeneous catalyst, of an oxime derivatives of formula (II)
wherein R1, R2 and R3 are as defined above with an acyl derivative of formula (III) (R4CO)mX wherein R4, m and X are as defined above.
一种生产以化学式(I)表示的烯酰胺衍生物的方法,其中R1、R2和R3分别是氢原子、烷基、环烷基、环烷基烷基、烷基芳基、芳基、杂环、氰基、酰基、烷氧基、芳氧基、羧基、氨基甲酰基、-CONR5R6(其中R5和R6分别是烷基、芳基烷基或芳基)或-COOR5基团(其中R5是烷基、烷基芳基或芳基),所述烷基、环烷基、环烷基烷基、烷基芳基和芳基基团被取代或未取代具有功能基团或R5;或者R1和R2一起,可以形成一个环(该术语包括单环、双环和更高的多环系统);R3具有与R1相同的含义,或者R3是一个羟基、咪唑基、N-酰基咪唑基、吲哚基、N-酰基吲哚基或以下基团之一,-COR5、-OR5、-OCOR5、-NR5R6、-NHCOR5、-N(COR5)2,其中R5和R6分别是烷基、烷基芳基或芳基;R4是氢原子、烷基、芳基、烷基芳基,所述基团被取代或未取代具有卤素原子如Cl、Br或F;Y是氢原子或R4CO基团;X是氧原子或一个离去基团,m是整数1或2;当m为1时,X是一个离去基团;当m为2时,X是一个氧原子,包括:在异质催化剂存在下,对具有上述定义的氧肟衍生物的羟化/异构化反应,其中R1、R2和R3如上所定义,与具有上述定义的酰衍生物(III)(R4CO)mX的氧肟衍生物(II)进行反应。