Tertiary amides as solvents in anthrapyridone syntheses

Details Tertiary amides as solvents in anthrapyridone syntheses Tertiary amides as solvents in anthrapyridone syntheses

1981-09-29

1983-05-31

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C09B 514

Patent

active

043862063

ABSTRACT:
Anthrapyridones are prepared in high yields from 1-aminoanthraquinones or 1-alkylaminoanthraquinones and phenylacetyl halides when tertiary amides are employed as reaction media. The phenylacetyl halides can be generated in situ from phenylacetic acid and thionyl halide or phosgene.

REFERENCES:
patent: 3502665 (1970-03-01), Wetherill et al.
patent: 3598831 (1971-08-01), Pfister
patent: 3926996 (1975-12-01), Schuhmacher
patent: 4141895 (1979-02-01), Middleton
patent: 4182885 (1980-01-01), Bunes
patent: 4309543 (1982-01-01), Keeley
Eilingsfeld, et al., Angew. Chem., vol. 72, No. 22, pp. 836-837 (1960).
Kittala, "Dimethylformamide Chemical Uses", E. I. Du Pont de Nemours & Co., Wilmington, Del. (1967), pp. 42-56.

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