Lasing dyes derived from ter-and quaterphenyl

Details Lasing dyes derived from ter-and quaterphenyl Lasing dyes derived from ter-and quaterphenyl

1975-04-28

1978-03-14

Wyman, Daniel E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260580, 260619B, C07C 8750, C07C 3912

Patent

active

040790827

ABSTRACT:
Methods for preparing ##STR1## wherein n is 3 or 4 and R is H, CH.sub.3 or C.sub.2 H.sub.5. The methods involve forming ##STR2## by reacting p-terphenyl or quaterphenyl with acetic acid and fuming nitric acid, forming ##STR3## by refluxing the dinitro derivative with stannous chloride, hydorchloric acid and acetic acid and forming the dialkylamino derivative by refluxing the diamino derivatives with a suitable trialkyl phosphate. Also, ##STR4## derivatives may be prepared by refluxing the diamino derivatives with sodium nitrite and hydrochloric acid to form ##STR5## AND REACTING THIS INTERMEDIATE WITH A MIXTURE OF ACETIC ACID AND EITHER WATER OR ALCOHOL. The compounds are useful as lasing dyes.

REFERENCES:
patent: 3342865 (1967-09-01), Oberster
Pavlopoulos et al., "Journal of the American Chemical Society", 96:21, pp. 568 to 6579, (1974).
Colonge et al., "Bull. Soc. Chim. Fr.", vol. 11, pp. 4370-4374, (1967).
Mason et al., "J. Chem. Soc.", pp. 1379-1385, (1940).
Amos et al., "Aust. J. Chem.", vol. 22(7), pp. 1555-1556, (1969).
Price et al., "J. Am. Chem. Soc.", vol. 66, pp. 632-634, (1944).
Scheinbaum, "J. Chem. Soc. PT D", vol. 21, p. 1235, (1969).

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