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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 441517Generated: October 26, 2026

4-Methyl-2-[2-(2-nitrophenyl)diazenyl]phenol → Phenol, 2-(2H-benzotriazol-2-yl)-4-(1,1-dimethylethyl)-

https://huagongshe.com/reaction/441517

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Methyl-2-[2-(2-nitrophenyl)diazenyl]phenolHCID 74029—
Reactant2-Nitro-2'-hydroxy-5'-t-butylazobenzeneHCID 135514582—
ProductPhenol, 2-(2H-benzotriazol-2-yl)-4-(1,1-dimethylethyl)-HCID 76605—

Reaction Steps

When in Example 13, the 2'-hydroxy-5'-methyl-2-nitroazobenzene was replaced by an equivalent amount of 2'-hydroxy-5'-tert-butyl-2-nitroazobenzene, the reduction reaction went rapidly to yield the product 2-(2-hydroxy-5-tert-butylphenyl)-2H-benzotriazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04041044
Source datasetuspto-grants-1977_08
ORD IDord-388505bf9ebb4207bff2e12bee558dd5
Source noteuspto-grants-1977_08