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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 851165Generated: October 30, 2026

Sulfuric Acid → HCID 20502722, compound

https://huagongshe.com/reaction/851165

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant2H-1-Benzothiopyran-4-carbonitrileHCID 13227705—
ReactantDiisobutylaluminumhydrideHCID 21225700—
SolventBenzeneHCID 241—
SolventTolueneHCID 1140—
ProductHCID 20502722HCID 20502722—

Reaction Steps

0.5 g of 4-cyano-2H-1-benzothiopyrane in 2 ml of benzene are reacted with 2 ml of a 20% solution of diisobutylaluminium hydride in toluene and the mixture stirred for 4 hours at room temperature. The resulting mixture is poured onto 20% H2SO4 and the organic phase separated, washed with saturated aqueous NaCl and dried over MgSO4. After concentration by evaporation the product is purified by chromatography over kieselgel (eluant hexane/ethyl acetate).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04382951
Source datasetuspto-grants-1983_05
ORD IDord-2e338e6c31cf4deeba09d532a7e12bd2
Source noteuspto-grants-1983_05