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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898897Generated: November 1, 2026

2-(4-Aminophenyl)benzonitrile → 7-[(2'-Cyanobiphenyl-4-yl)amino]-5-ethylpyrazolo[1,5-a]pyrimidine

https://huagongshe.com/reaction/1898897

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-Aminophenyl)benzonitrileHCID 1393926—
Reactant7-Chloro-5-ethylpyrazolo[1,5-a]pyrimidineHCID 10535410—
SolventEthanolHCID 702—
Product7-[(2'-Cyanobiphenyl-4-yl)amino]-5-ethylpyrazolo[1,5-a]pyrimidineHCID 19975977—

Reaction Steps

1.4 g (7.7 mmol) of the chloride from Example 1, Step B and 1.5 g (7.7 mmol) 4-Amino-2'-cyanobiphenyl were heated in 30 ml dry ethanol for 5 h. After removal of the solvent in vacuo the nitrile was obtained in colorless crystals from ethanol, m.p. 247°-248° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05571813
Source datasetuspto-grants-1996_11
ORD IDord-f3564e07506243e8b16f4a76cfb69465
Source noteuspto-grants-1996_11