C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/653.5
C07C 25/02 (2006.01) C07C 17/12 (2006.01)
Patent
CA 1123861
ABSTRACT OF THE DISCLOSURE p-Chloroalkylbenzene is selectively produced by chlorinating an alkylbenzene in the presence of a phenoxthine compound having the formula Image wherein X1, X2, X3 and X4 are the same or different and respective- ly represent hydrogen atom; an electron attractive group or an electron donative group and a Lewis acid or its precursor as a catalyst. The process for producing p-chloroalkylbenzene can be repeatedly carried out by separating the resulting p-chloroalkyl- benzene and adding a hydrogen halide to the residual mixture containing the catalyst to activate the catalyst and chlorinating fresh alkylbenzene.
354382
Nakayama Yoshiki
Yamanashi Koji
Yazawa Chihiro
Ihara Chemical Industry Co. Ltd.
Marks & Clerk
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