35793-35-2Relevant academic research and scientific papers
Synthesis method of p-chloromethyl styrene
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, (2019/11/25)
The invention relates to a synthesis method of an organic intermediate, in particular, a synthesis method of p-chloromethyl styrene. According to the synthesis method, a phase-transfer catalytic method is adopted; p-chloromethyl-alpha-bromoethylbenzene and potassium hydroxide are taken as the raw materials; toluene is taken as the solvent; and a phase-transfer catalysis is added to synthesize p-chloromethyl styrene. The synthesis method has the advantages that the reactions are mild, the energy consumption is low, no high pressure or high temperature is needed during the reaction process, thereactants do not react with the solvent or the phase-transfer catalyst, the yield is increased, the side reactions are reduced, and a high quality product is obtained.
Method for making o- and p- haloalkyl styrenes
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, (2008/06/13)
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.
