Acidic mixed oxide catalytic de-alkylation of tertiary-alkyl-ether-alkanols
US4254290A · kind A · utility
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Key dates
| Filing date | Dec 20, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
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 terephthalates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.