Preparation of 3(5)-phenyl-1-hydroxypyrazole 2-oxide and 4-methyl-3(5)-phenyl-1-hydroxypyrazole 2-oxide-Reference-Cited by-同舟云学术

Preparation of 3(5)-phenyl-1-hydroxypyrazole 2-oxide and 4-methyl-3(5)-phenyl-1-hydroxypyrazole 2-oxide

Published:1993-07 Issue:4 Volume:30 Page:1163-1166
ISSN:0022-152X
Container-title:Journal of Heterocyclic Chemistry
language:en
Short-container-title:

Author:

Hansen John F.,Luther Matthew L.

Publisher

Wiley

Subject

Organic Chemistry

Reference12 articles.

1. Nitrosation of .alpha.,.beta.-unsaturated oximes. V. Synthesis and chemistry of 1-hydroxypyrazole 2-oxides

2. Nitrosation of .alpha.,.beta.-unsaturated oximes. IV. Synthesis and structure of 3,4-diazacyclopentadienone derivatives

3. Isolation of a new 1-hydroxypyrazole 2-oxide via chelation

4. Preparation and oxidation of 1-hydroxypyrazoles and 1-hydroxypyrazole 2-oxides

5. In 1-hydroxypyrazole 2-oxide a situation exists which is similar to that in N-unsubstituted pyrazoles, namely that the C3 and C5 positions of the ring are indistinguishable due to the chelation of the acidic proton with both oxygens or to rapid exchange between them. This ambiguity in numbering is indicated by showing the alternative numbering in parentheses, C3(5) or C5(3).

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1. Five-Membered Heterocycles: 1,2-Azoles. Part 1. Pyrazoles;Modern Heterocyclic Chemistry;2011-07-27

2. ChemInform Abstract: Preparation of 3(5)-Phenyl-1-hydroxypyrazole 2-Oxide (IIa) and 4- Methyl-3(5)-phenyl-1-hydroxypyrazole 2-Oxide (IIb).;ChemInform;2010-08-19

3. Synthesis of Heterocycles from Oximes;PATAI'S Chemistry of Functional Groups;2010-04-15

4. Volume 3 References;Comprehensive Heterocyclic Chemistry II;1996

5. Pyrazoles;Comprehensive Heterocyclic Chemistry II;1996