3-Methylene flavanones and 3-methylene chromanones
US4241069A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1979 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Sep 4, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds which are 3-methylene flavanones and 3-methylene chromanones having activity against microorganisms are disclosed. The compounds are represented by the general structural formula: ##STR1## wherein: R.sup.1 is a member selected from the group consisting of hydrogen, Br, CH.sub.3 and OCH.sub.3 ; R.sup.2 is selected from the group consisting of hydrogen and ##STR2## wherein R.sup.4 is a member selected from the group consisting of hydrogen, Br, Cl, CH.sub.3, OCH.sub.3, NO.sub.2, N(CH.sub.3).sub.3 and CN; R.sup.5 is selected from the group consisting of hydrogen and Cl, with the proviso that when R.sup.5 is Cl, R.sup.4 is hydrogen or Cl; and R.sup.3 is selected from the group consisting of hydrogen, phenyl, 2-thienyl, 4-pyridyl and naphthyl, with the proviso that when R.sup.3 is naphthyl, R.sup.1 and R.sup.2 are hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.