Thiophene derivatives

Details Thiophene derivatives Thiophene derivatives

1992-04-08

1993-04-27

Siegel, Alan

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548179, 548217, 5483047, 549 61, 534753, 8662, 8690, 8691, 8692, C07D27760, C07D27762, C07D26352, C07D33338

Patent

active

052063755

ABSTRACT:
The novel compound of the general formula I ##STR1## where X is fluorine, chlorine, bromine, SO.sub.2 Y or unsubstituted or substituted hydroxyl or mercapto, Y is alkyl, alkenyl, cycloalkyl, aralkyl, aryl, chlorine or unsubstituted or substituted hydroxyl or amino, R is hydrogen, C.sub.1 -C.sub.4 -alkyl or a radical which can be introduced by electrophilic substitution or a radial of the formula --CH.dbd.T, in which T is a radical of a methyleneactive compound or of an amine, and R.sup.1 is hydrogen, acyl or unsubstituted or substituted alkyl, cycloalkyl or alkenyl, and R.sup.2 is hydrogen or unsubstituted or substituted alkyl or alkenyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure and R.sup.1 and R.sup.2 together form a radical of the formula ##STR2## are useful as diazo and/or coupling components or generally as dye intermediates, depending on their constitution.

REFERENCES:
patent: 4108867 (1978-08-01), Baird et al.
patent: 4111956 (1978-09-01), Baird et al.
Research Disclosure, Oct. 1980, ref. 19826, pp. 425-427, "Discharge/Resist Printing of Synthetic Textile Materials Using Thiophene-azo Disperse Dyestuffs in the Presence of Alkali".
Chemical Abstracts, Band 104, Nr. 3, 20. Jan. 1986, Seite 476, Nr. 1950f, Columbus, Ohio, US; & JP-A-60 161 978 (Mitsui Toatsu Chemicals Inc.) 23-08-1985, Zusammenfassung.

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