Substituted hydroquinone derivatives

Details Substituted hydroquinone derivatives Substituted hydroquinone derivatives

1995-06-05

1997-12-02

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546184, 546196, 546245, 558186, 558187, 558199, 568 9, 568 14, 568 16, 568 17, 568644, 568650, 568655, C07D21132

Patent

active

056938071

ABSTRACT:
The invention relates to substituted hydroquinone derivatives of the general formula I ##STR1## wherein R.sub.4 is lower alkyl and either R.sub.1 is hydroxy, halogen, a group of the formula --P(=O)(R.sub.5)R.sub.6 (Ia), a group of the formula --P.sup.+ (R.sub.7)(R.sub.8)R.sub.9 X.sup.- (Ib) or a group of the formula --Si(R.sub.7)(R.sub.8)R.sub.9 (Ic), M is methylene, R.sub.2 is hydrogen or a group of the formula ##STR2## and R.sub.3 is hydrogen or halogen, or .sub.1 is hydroxy or lower alkoxy, M is carbonyl, R.sub.2 is hydrogen and R.sub.3 is halogen, each of R.sub.5 and R.sub.6, independently of the other, is lower alkyl, lower alkoxy Or N,N-di-lower alkylamino, or is benzyl, benzyloxy, phenyl or phenoxy, each of which is unsubstituted or mono- or di-substituted at the phenyl ring, to a process for the preparation of those compounds and to the use of those compounds, and to a process in which those compounds are used.

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