Process for the preparation of compounds containing a triazole and tetrahydrofuran group, and new compounds capable of being employed for the preparation of the said compounds
US4883882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1987 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Aug 24, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of compounds containing a triazole and tetrahydrofuran group, and new compounds capable of being employed for the preparation of the said compounds. The invention relates to a process for the preparation of 2-(1-triazolyl)methyl-2-(m-, p-dichlorophenyl)-5-OR.sub.1 -tetrahydrofuran compounds, R.sub.1 being a lower alkyl radical, substituted if desired, by means of the following stages: PA0 (a) isomerization of the compound of formula: PA1 (m-, p-diCl)Ph--C(OH)(CH.sub.2 Cl)--CH.dbd.CH--CH.sub.2 --OR.sub.1 PA0 (b) grafting of a traizole ring onto the compound obtained, of formula: PA1 (m-, p-diCl)Ph--C(OH)(CH.sub.2 Cl)--CH.dbd.CH--CH.sub.2 --OR.sub.1 PA0 (c) cyclization of the compound obtained in (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.