Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1990-05-29
1991-02-19
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
544359, 546191, 548379, 548518, 558387, 562430, C07D40112, C07D40312, C07D41312, C07D23106
Patent
active
049945700
ABSTRACT:
Indicators for the detection of thio groups are disclosed together with processes for the preparation of such indicators. The indicators of the invention contain compounds having the following general formula ##STR1##
REFERENCES:
patent: 3982018 (1976-09-01), Werner
patent: 4496491 (1985-01-01), Kopp et al.
Herdenreich et al, "Dinitro dithiobenzenesulfonic acid deriv. etc.", CA., vol. 109, 186826w (1988).
De Cat, A. et al, "2-Alkylthiazoles and 2-alkylselenazoles etc.", CA., vol. 76, 99646u (1972).
Heidenreich Holger
Wehling Klaus
Coe Roger N.
Miles Inc.
Raymond Richard L.
Treanor Susan P.
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