Preparation of pyrazoles

Details Preparation of pyrazoles Preparation of pyrazoles

1981-07-15

1984-01-03

Raymond, Richard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548375, 548378, C07D23112

Patent

active

044243642

ABSTRACT:
A process for the preparation of pyrazoles by reacting a pyrazoline with sulfur or selenium in a solvent.

REFERENCES:
patent: 3896143 (1975-07-01), Kathawala
patent: 3952010 (1976-04-01), Garber et al.
patent: 4014896 (1977-03-01), Garber et al.
patent: 4239901 (1980-12-01), Rainer
Neuere Methoden Der Praparativen Organischen Chemie, 2nd Edition, Part 1, (1944), Spriner Verlag, pp. 72-73.
Grandberg et al., Zhurnal Obshchei Kihimii 1958, vol. 28 (11), pp. 3071-3075.
Pershin et al., Doklady Akademii Nauk S.S.S.R. (U.S.S.R.) 1958, vol. 123 (1), pp. 200-203.
Wiley, Ed., Pyrazoles, Pyrazolines, Pyrazolidines, Indazoles and Condensed Rings (Interscience, New York, 1967), p. 215.

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