Process for the dehalogenation of naphthalene derivatives

Details Process for the dehalogenation of naphthalene derivatives Process for the dehalogenation of naphthalene derivatives

1992-10-16

1993-12-07

Cintins, Marianne M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549347, 549374, 549450, 549452, 549451, 568592, C07D31712, C07D31732, C07C 4124, C07C 4122

Patent

active

052684911

ABSTRACT:
A process for the selective dehalogenation in position 5 of the naphthalenic nucleus of compounds of formula ##STR1## (wherein X, X.sub.1 and R have the meanings reported in the description) by treatment with a dehalogenating agent selected among hydrogen sulfide, aliphatic thiols or mixtures thereof in an inert anhydrous solvent at acid pH.

REFERENCES:
Manabu Nobe, et al., Journal of Organic Chemistry "Hard Acid and Soft Nucleophile Systems. 8..sup.1 Reductive Dehalogenation of O-And P-Halophenols and Their Derivatives" vol. 49, No. 19, 1984, pp. 3641-3643.
The Hydrogenolysis of Organic Halides, A. R. Pinder, Georg Thieme Verlag--Stuttgart--New York, (1980) pp. 425-452.

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