Method for making o- and p- haloalkyl styrenes

Details Method for making o- and p- haloalkyl styrenes Method for making o- and p- haloalkyl styrenes

1975-08-04

1977-08-30

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260651HA, 260613D, C07C 2514

Patent

active

040455017

ABSTRACT:
A method for making o- and p- halomethyl styrenes which comprises reacting an ethyl benzene, paraformaldehyde and hydrogen halide, treating the reaction product with a halogen, and dehydrohalogenating the resulting o- and p- halomethyl (1-haloethyl) benzenes at an elevated temperature using as dehydrohalogenating agent an amine acceptor of the generic formula: ##STR1## WHEREIN R is an alkyl group of 1 to 6 carbon atoms, n is an integer having a value of from 1 to 5, and at least one alkyl group is attached to a carbon atom adjacent to the nitrogen atom and when n is more than 1, the alkyl groups may be the same or different groups, and recovering a mixture of o- and p- halomethyl styrenes.

REFERENCES:
patent: 2780604 (1957-02-01), Clark et al.
patent: 3067182 (1962-12-01), Jones

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