Preparation of N-hydroxyazoles

Details Preparation of N-hydroxyazoles Preparation of N-hydroxyazoles

1993-03-26

1994-07-26

Morris, Patricia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483351, 5483431, 5483731, C07D24908, C07D23356, C07D23112

Patent

active

053328302

ABSTRACT:
N-Hydroxyazoles of the general formula I ##STR1## where A is ##STR2## and R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, C.sub.1 -C.sub.4 -alkyl or halogen, are prepared by a process in which an azole of the general formula II ##STR3## where A, R.sup.1, R.sup.2 and R.sup.3 have the abovementioned meanings, is reacted with hydrogen peroxide or an alkyl peroxide in the presence of a zeolite catalyst at from -20.degree. to 150.degree. C. and from 0.1 to 150 bar.

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patent: 4945166 (1990-07-01), Baus et al.
patent: 4945167 (1990-07-01), Baus et al.
patent: 4957937 (1990-09-01), Schuetz et al.
patent: 5049678 (1991-09-01), Baus et al.
patent: 5112985 (1992-05-01), Baus et al.

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