Process of preparing pyrazolo 1,5-b! 1,2,4! triazoles

Details Process of preparing pyrazolo 1,5-b! 1,2,4! triazoles Process of preparing pyrazolo 1,5-b! 1,2,4! triazoles

1993-10-28

1996-04-23

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483717, C07D48704

Patent

active

055104924

ABSTRACT:
A process of preparing an N-(4-chloropyrazolyl) amidoxime comprises reacting a compound of the formula ##STR1## with a compound of the formula ##STR2## to obtain compounds of formulae (IIIA) and/or (IIIB) ##STR3## and converting the compounds of formulae (IIIA) and/or (IIIB) to an amidoxime of formula (II) ##STR4## wherein R and R' independently represent hydrogen or a substituent.

REFERENCES:
patent: 4540654 (1985-09-01), Sato et al.
patent: 4621046 (1986-11-01), Sato et al.
patent: 4705863 (1987-11-01), Sato et al.
patent: 4921968 (1990-05-01), Yokoyama et al.
patent: 5262542 (1993-11-01), Tang et al.

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