4936. 1H-Indazole

Nomenclature

CAS number: 271-44-3
Isoindazole; benzopyrazole.
C7H6N2; mol wt 118.14.
C 71.17%, H 5.12%, N 23.71%.

Description and references

Prepn: Stephenson, Org. Synth. coll. vol. III, 475 (1955); Ainsworth, Org. Synth. 39, 27 (1959); Huisgen, Bast, ibid. 42, 69 (1962).

Chemical structure

Properties

Needles from hot water, mp 146.5°. bp743 267-270°. Sol in hot water, alcohol, ether.