BENZOXAZINE INTERMEDIATE AND PREPARATION METHOD THEREOF

摘要

The present invention relates to a benzoxazine intermediate and a preparation method thereof. The structural formula of the benzoxazine intermediate is shown by formula (1), R1 in formula represents o, C═O, S, SO2, alicyclic hydrocarbon with 3 to 30 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof; R2 is alicyclic hydrocarbon with 3 to 20 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof. The benzoxazine intermediate of the present invention contains a naphthalene ring structure segment, has desirable heat resistance performance and flame retarding performance, and can be widely applied in composite materials.

主权项

1. A benzoxazine intermediate having the structural formula (I)wherein R1 is selected from the group consisting of O, C═O, S, SO2, alicyclic hydrocarbon with 3 to 20 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof, R2 is selected from the group consisting of alicyclic hydrocarbon with 3 to 20 carbon atoms and derivatives thereof, aliphatic hydrocarbon with 1 to 20 carbon atoms and derivatives thereof, or unsaturated aliphatic hydrocarbon with 2 to 20 carbon atoms and derivatives thereof.