Novel tetrazaporphins

Details Novel tetrazaporphins Novel tetrazaporphins

1973-05-09

1977-12-06

Raymond, Richard L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260250BC, 260296P, C07D20900

Patent

active

040616541

ABSTRACT:
Ordered tetrazaporphins prepared from the reaction of an aminoiminosubstituted pyrroline with a trihalosubstituted pyrroline in the presence of an acid acceptor and a hydrogen donor.
These compounds are useful as intermediates in the preparation of dyes and pigments, as well as dye developers for photographic processes.

REFERENCES:
patent: 2683643 (1954-07-01), Baumann et al.
patent: 2701252 (1955-02-01), Vollmann et al.
patent: 2739151 (1956-03-01), Rosch et al.
Moser et al., Phthalocyanine Compounds, pp. 107-108, 274-275 (1963).

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