Method for the hydrolysis of azetidinothiazoline compounds
US4130557A · kind A · utility
5Cited by
1References
5Claims
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Assignee
Inventors
Key dates
| Filing date | Jan 29, 1976 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Jan 29, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S204/912
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing compounds having the formula: ##STR1## WHEREIN R is phenoxymethyl or benzyl; R.sub.2 is 1-methoxyethylidene, 1-hydroxyethylidene, or 1,1-dimethoxyethylidene; and PA1 R.sub.3 is trichloroethyl, diphenylmethyl, p-nitrobenzyl, trityl, phenyl, naphthyl, or trimethylstannyl; PA1 Which comprises treating a compound of the following formula: ##STR2## where R, R.sub.2 and R.sub.3 are as defined above, WITH AgClO.sub.4, AgBF.sub.4, AgIO.sub.4, AgPF.sub.6, CF.sub.3 COOAg, CH.sub.3 SO.sub.3 Ag, CF.sub.3 SO.sub.3 Ag, CH.sub.3 COOAg, or AgNO.sub.3 in aqueous dioxane, aqueous tetrahydrofuran or mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.