Process for halogenating cyclobutenoarenes

C - Chemistry – Metallurgy – 07 – C

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260/653.1

C07C 17/12 (2006.01) C07C 25/22 (2006.01)

Patent

CA 1321212

T 4144 A B S T R A C T PROCESS FOR HALOGENATING CYCLOBUTENOARENES The invention relates to a process for preparing a cyclobutenohaloarene comprising the steps of: (a) providing a reaction mixture comprising an organic phase and an aqueous phase, the organic phase comprising a cyclobuteno- arene; (b) contacting in the organic phase the cyclobutenoarene and a halogen source under reaction conditions effective for producing a reaction product comprising the cyclobuteno- halonrene and hydrogen halide and for permitting migration of the byproduct hydrogen halide into the aqueous phase; and (c) recovering the cyclobutenohaloarene from the organic phase. ML3.T4144FF

600779

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