Method of preparing polynuclear, halogenated, aromatic benzyl et

Details Method of preparing polynuclear, halogenated, aromatic benzyl et Method of preparing polynuclear, halogenated, aromatic benzyl et

1975-09-04

1977-08-02

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260613R, 8116R, 252 89, C07C 4104

Patent

active

040395871

ABSTRACT:
An aromatic polynuclear, halogenated, aromatic benzyl ether of the formula ##STR1## WHEREIN W is a chlorine or bromine atom or a methyl radical or the radical --CH.sub.2.Z, said radical W being disposed in the ortho, meta or para position with respect to the CH.sub.2.Z radical, Hal represents a chlorine or bromine atom, n is 0 to 4 and Z represents a phenoxy radical of the general formula ##STR2## wherein X is a chlorine or bromine atom, R is a hydrogen atom or an alkyl radical having 1 to 4 carbon atoms, a is 2 to 5 and b is (5-i a); a process for producing such polynuclear halogenated benzyl ether by contacting a benzyl halide of the general formula ##STR3## wherein Hal and n have the previously assigned significance, X is a chlorine or bromine atom, Y is the same as CH.sub.2 X or is a hydrogen or chlorine atom or a methyl radical and is disposed in the ortho, meta or para position with respect to the radical --CH.sub.2 X, and a phenolate of a halogen phenol which halogen phenol has the formula ##STR4## WHEREIN X, R, a and b have the previously assigned significance, in a glycol monoalkyl ether reaction medium until the ether is formed and thereafter isolating the ether.

REFERENCES:
patent: 2109514 (1938-03-01), Van Duzee et al.
patent: 2121723 (1938-06-01), Bass et al.
patent: 2121724 (1938-06-01), Bass et al.
patent: 3450772 (1969-06-01), Bridger et al.
patent: 3654364 (1972-04-01), Meckel et al.
Powanol -- Glycol Ether Solvents (1957), p. 3.

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