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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1384485Generated: October 31, 2026

Sulfuric Acid → HCID 69650415, compound

https://huagongshe.com/reaction/1384485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantGamma-ValerolactoneHCID 7921—
Reactant4-MethoxybenzaldehydeHCID 31244—
ReactantSodium MethoxideHCID 10942334—
SolventWaterHCID 962—
Solventtert-Butyl methyl etherHCID 15413—
ProductHCID 69650415HCID 6965041548%

Reaction Steps

74 g (0.5 mol) of 4-methyl-γ-butyrolactone are added to a suspension of 27 g (0.50 mol) of sodium methoxide in 400 g of methyl tert-butyl ether and, over the course of 1 h, 68 g (0.5 mol) of anisaldehyde are added thereto with stirring at room temperature. The mixture is maintained under reflux for a further 1 h and then cooled, and 200 g of iced water are added to the mixture and the pH is adjusted to 5 using 10% sulphuric acid. After the phases have separated, the product is distilled. This gives 65 g of the desired compound in a yield of 48% of theory. The specific absorbance E{fraction (1/1)} of the novel compound according to the present invention is 1.250, measured at a wavelength of λmax 310 nm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06258963B1
Source datasetuspto-grants-2001_07
ORD IDord-18e62d7e2efe4abb9222b20eaea529d4
Source noteuspto-grants-2001_07