Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom
申请人:Rai Kumar Vinod
公开号:US20050288517A1
公开(公告)日:2005-12-29
Disclosed herein is a method for producing a 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine. The method comprises forming a reaction mixture comprising at least one substituted or unsubstituted phenolphthalein compound, at least one substituted or unsubstituted primary hydrocarbyl amine, and an acid catalyst; and heating the reaction mixture to form 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine. An adduct of the 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine is formed either by using an excess of the primary hydrocarbyl amine in the first heating step, or by isolating crude 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine after the heating step and then reacting with a further amount of the primary hydrocarbyl amine. The 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine has a formula:
where R
1
is selected from the group consisting of a hydrogen and a hydrocarbyl group, and R
2
is selected from the group consisting of a hydrogen, a hydrocarbyl group, and a halogen.
本文公开了一种制备2-烃基-3,3-双(4-羟基芳基)邻苯二酰亚胺的方法。该方法包括形成一个反应混合物,其中包括至少一种取代或未取代的苯酞化合物、至少一种取代或未取代的一次烃基胺和酸催化剂;并加热反应混合物以形成2-烃基-3,3-双(4-羟基芳基)邻苯二酰亚胺。2-烃基-3,3-双(4-羟基芳基)邻苯二酰亚胺的加合物可通过在第一次加热步骤中使用过量的一次烃基胺来形成,或者通过在加热步骤后分离粗糙的2-烃基-3,3-双(4-羟基芳基)邻苯二酰亚胺然后与进一步的一次烃基胺反应来形成。2-烃基-3,3-双(4-羟基芳基)邻苯二酰亚胺具有以下化学式:其中R1选自氢和烃基团组成的群,R2选自氢、烃基团和卤素组成的群。