Synthesis and application of new phenyl-functionalized zeolites as protection against radical bromination at the benzylic position

Article abstract of DOI:10.1055/s-1997-1070

New zeolites functionalized with phenyl group have been synthesized from phenyltriethoxysilane and/or tetraethylorthosilicate with dodecylamine as a template at room temperature. These zeolites have proved to have an ability to protect the benzylic position against radical bromination. 4-Chloromethylstyrene was brominated at the double bond selectively and the benzylic position was intact under irradiation with visible light in the presence of phenyl-functionalized zeolites, although without the zeolite, the both sites were brominated.