Method of preparing 4-dichlorophenyl-1-tetralones
US5019655A · kind A · utility
4Cited by
2References
12Claims
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Inventor
Key dates
| Filing date | Jun 8, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Jun 8, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/755
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Method of preparing 4-disubstituted phenyl-1-tetralones of formula ##STR1## in which X represents halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy and Y, situated in position 2' or 3', represents halogen or C.sub.1 -C.sub.4 alkyl, this method being characterized in that it comprises the reaction, in the presence of an acid agent, of .alpha.-naphthol of formula (II) with a phenyl compound of formula (III): ##STR2## where X represents halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, and Y is situated in the ortho or meta position with respect to X and represents halogen or C.sub.1 -C.sub.4 alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.