Recovery process

Details Recovery process Recovery process

1987-03-03

1989-04-25

Brust, Joseph Paul

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

Organic compounds

Nitriles

558376, 558425, 560100, C07C12162, C07C 6976

Patent

active

048249890

ABSTRACT:
A (trifluoromethyl)naphthalene which has been prepared by reacting a halonaphthalene with a trifluoroacetate salt in the presence of cuprous iodide and a dipolar aprotic solvent is recovered by (1) replacing the dipolar aprotic solvent in the final reaction mixture with an alkane containing 6-12 carbons, (2) heating the resultant slurry to a temperature sufficient to dissolve the organic ingredients, (3) allowing the inorganic ingredients of the slurry to settle, (4) decanting the organic layer, and (5) cooling to precipitate the (trifluoromethyl)naphthalene.

REFERENCES:
patent: 4439617 (1984-03-01), Sestans et al.
patent: 4590010 (1986-05-01), Ramachandran et al.
Matsui, et al., "Chem. Letters", (1981), pp. 1719-1720, Chemistry Society of Japan.

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