Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1856417Generated: October 26, 2026

Potassium Hydroxide → UV-328

https://huagongshe.com/reaction/1856417

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantSodium HydroxideHCID 14798—
Reactant4-Methyl-2-[2-(2-nitrophenyl)diazenyl]phenolHCID 74029—
Reactant2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzeneHCID 104111—
ReactantSorbitan mono-(9Z)-9-octadecenoateHCID 9920342—
ReactantSpan #80 (Sorbitan monooleate)HCID 70693544—
ReactantHCID 178418361HCID 178418361—
ProductUV-328HCID 3326371.9%

Reaction Steps

When using the general procedure of Example 5, the 2-nitro-2'-hydroxy-5'-methylazobenzene was replaced by an equivalent amount of 2-nitro-2'-hydroxy-3',5'-di-tert-amylazobenzene and the sodium hydroxide was replaced by an equivalent amount of potassium hydroxide, the hydrogenation was run in an Amsco mineral spirits/water (40/60) medium containing 1% sorbitan monooleate, Span 80, wetting agent at a hydrogen pressure of 6 atmospheres for a total period of 8 hours. The above named product was obtained in an isolated yield of 71.9%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04219480
Source datasetuspto-grants-1980_08
ORD IDord-e2054230f53e43809c686e6f2bd88ceb
Source noteuspto-grants-1980_08