Acidic mixed oxide catalytic de-alkylation of...

Details Acidic mixed oxide catalytic de-alkylation of... Acidic mixed oxide catalytic de-alkylation of...

C - Chemistry, Metallurgy

07

C

260/635.1

C07C 31/20 (2006.01) C07C 29/10 (2006.01) C07D 307/08 (2006.01)

Patent

CA 1153778

RD 12,308 ACIDIC MIXED OXIDE CATALYTIC DE-ALKYLATION OF TERTIARY-ALKYL-ETHER-ALKANOLS ABSTRACT OF THE DISCLOSURE A de-alkylation process which comprises contacting a t-alkylether-alkanol, e.g. 4-t-butylether-n- butan-1-ol, with an acidic solid mixed oxide, e.g. silica-alumina, catalyst which results in the formation of alkanediols, e.g. 1,4-butanediol, in the substantial absence of undesirable side reactions, e.g. the formation of tetrahydrofuran. The resulting alkanediols are useful in the preparation of polyesters, e.g. polybutylene tere- phthalates.

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