[EN] SYNTHESIS OF CHIRAL SUBSTITUTED BENZENES AND RELATED AROMATIC COMPOUNDS CONTAINING 1,2 DIOLS PROTECTED AS DIACETAL GROUPS<br/>[FR] SYNTHÈSE DE BENZÈNES SUBSTITUÉS CHIRAUX ET COMPOSÉS AROMATIQUES CORRESPONDANTS CONTENANT DES DIOLS 1,2 PROTÉGÉS EN TANT QUE GROUPES DIACÉTAL
申请人:AVRA LAB PVT LTD
公开号:WO2012114347A1
公开(公告)日:2012-08-30
Disclosed herein is a compound of formula (A), its salts, enantiomers, and diastereomers thereof; wherein, Rl and R2 can be (C1-C6) alkyl groups, a phenyl group, a (C5-C7) cycloalkyl groups; X and Y individually selected from H, -N02, -NH2, -OH, -halo, -CHO, -COOH, - COOR, boronic acid-potassium bifluoride boronate salts, boronate esters, aryl, substituted aryl, alkyl or aryl carbamoyl, substituted alkyl or aryl carbamoyl; phosphines(R3R3P) and phosphine oxide of the formula R3R3P=0, where R3 represents an aryl group that can be substituted by one or more (C1-C5) alkyl group, a (C5-C7) cycloalkyl group, (Cl- C4) alkoxy group or di (C1-C4) alkyl amino groups, cyclic hetero aryl group preferably, a 5 membered ring or a halogen.(The R3 groups are normally identical and preferably phenyl groups); wherein both X and Y can be substituted in ortho, para or meta position of the phenyl ring w.r.t the diacetal/ ketal functional group in compound A. The invention also discloses process for preparation of the same.
本文披露了一种具有化学式(A)的化合物及其盐、对映体和非对映体;其中,R1和R2可以是(C1-C6)烷基基团,苯基,(C5-C7)环烷基基团;X和Y分别选自H,-N02,-NH2,-OH,-卤素,-CHO,-COOH,-COOR,硼酸钾氟硼酸盐,硼酸酯,芳基,取代芳基,烷基或芳基氨甲酰,取代烷基或芳基氨甲酰;磷化物(R3R3P)和化学式为R3R3P=0的氧化磷,其中R3代表一个芳基,可以被一个或多个(C1-C5)烷基基团,(C5-C7)环烷基基团,(Cl-C4)烷氧基团或二(C1-C4)烷基氨基团取代,最好是环杂芳基团,首选为5元环或卤素。(R3基团通常相同,最好是苯基);其中X和Y均可以在与化合物A中的二缩醛/缩酮官能团相对应的苯环的邻位,对位或间位被取代。本发明还披露了其制备方法。