Preparation of N-thienyl-chloroacetamides and tetrahydro-thien-3-ylidenimines
US4806656A · kind A · utility
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4Claims
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Inventor
Key dates
| Filing date | Aug 5, 1985 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Aug 5, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D333/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides compounds of formula I ##STR1## wherein R is C.sub.1-4 alkoxy-C.sub.2-4 alkyl of which the C.sub.1-4 alkoxy group is separated by at least 2 C-atoms from the N-atom to which R is bound, PA0 each of R.sub.2 and R.sub.4 independently is CH.sub.3 or C.sub.2 H.sub.5 and PA0 R.sub.5 is H or CH.sub.3, the preparation of such compounds and the use of such compounds for the preparation of N-(thien-3-yl)-chloroacetamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.