Process for the manufacture of bis-benzoxazolyl-stilbene compoun

Details Process for the manufacture of bis-benzoxazolyl-stilbene compoun Process for the manufacture of bis-benzoxazolyl-stilbene compoun

1980-02-14

1981-08-04

Demers, Arthur P.

Harness for working animal

548217, C07D41310

Patent

active

042823552

ABSTRACT:
Process for the manufacture of bis-benzoxazolyl-stilbene compounds which comprises the chlorination in an inert organic solvent of benzoxazolyl-stilbene carboxylic acid, addition of a solution of an aminophenol in an aprotic, dipolar solvent to the acid chloride thus obtained and subsequent cyclization in the presence of an acid catalyst of the acyl compound obtained.

REFERENCES:
patent: 3455837 (1969-07-01), Maede r et al.
patent: 3786064 (1974-01-01), Harnisch
patent: 3850914 (1974-11-01), Luthi
patent: 3860584 (1975-01-01), Meyer
patent: 3926963 (1975-12-01), Meyer
patent: 3926964 (1975-12-01), Liechtl
Weiss et al., J. Am. Chem. Soc. 80(1958) pp. 4657-4658.

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