The chlorination of the N-acetyl derivatives of the fourteen possible nitronaphthylamines has been studied under a variety of conditons. Both substitution and addition processes occur; the latter have not been investigated in any detail. The reactivity and mode of substitution of the N-acetylnitronaphthylamines are compared to the behaviour of the parent naphthylamines, and also to other corresponding
Linear crystalline alpha-alkylpolybenzyls and process for preparing them
申请人:EXXON RESEARCH AND ENGINEERING COMPANY
公开号:EP0017455A1
公开(公告)日:1980-10-15
Linear polybenzyls of high molecular weight and high crystallinity suitable for use in films or moulding compositions are obtained by polymerizing aralkyl halides in the presence of a Friedel-Crafts catalyst complexed with a nitroarene or a nitroalkane complexing agent in a halogenated solvent. The complex catalyst allows the polymerization to be run at higher rates. The polymerizable a-alkyl-benzyl halides which can be readily employed are represented by the following structural formula:
wherein R1 is a C1-C4 alkyl group, R2 and R3 are the same or different and are each selected from the group consisting of I hydrogen and C1-C4 alkyl groups, and X is halogen.