Process for the preparation of thioindigo compounds

Details Process for the preparation of thioindigo compounds Process for the preparation of thioindigo compounds

1979-05-21

1981-04-07

Randolph, John D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C09B 710

Patent

active

042607787

ABSTRACT:
Process for the preparation of thioindigo compounds of the formula ##STR1## in which A and B designate identical or different optionally substituted benzene rings or benzene rings onto which further carbocyclic and heterocyclic rings are fused,
characterized in that compounds of the formula ##STR2## in which A and B have the meaning indicated above and

REFERENCES:
patent: 2158032 (1939-05-01), Lubs et al.
Kendall, General Chemistry, pp. 330 to 331, Revised Edition, copyrighted 1936 by D. Appleton-Century Co., Inc., (NY).

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