Method of preparing 4-dichlorophenyl-1-tetralones

Details Method of preparing 4-dichlorophenyl-1-tetralones Method of preparing 4-dichlorophenyl-1-tetralones

1989-06-08

1991-05-28

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4545

Patent

active

050196553

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.

REFERENCES:
patent: 4029731 (1977-06-01), Sarges
patent: 4045488 (1977-08-01), Sarges
Repinskaya et al., J. Org. Chem. U.S.S.R., vol. 18, pp. 754-760, (1984).
Koptyug et al., Chem. Abst., vol. 76, #140, 2865 (1972).

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