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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2396932Generated: October 29, 2026

Formaldehyde → HCID 18986673, compound

https://huagongshe.com/reaction/2396932

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantDibutylamineHCID 8148—
ReactantMethallyl alcoholHCID 10557—
Reactant4-Hydroxy-2,3,6-trimethylphenyl acetateHCID 119024—
ProductHCID 18986673HCID 18986673—

Reaction Conditions

Temperature150 °C

Reaction Steps

A pressure-proof reaction vessel equipped with a stirrer was charged with 17.5 g (0.09 mole) of 4-acetoxy-2,3,5-trimethylphenol, 32.5 g (0.45 mole) of 2-methyl-2-propen-1-ol, 3.7 g (0.099 mole) of 80% paraformaldehyde and 1.2 g (0.009 mole) of dibutylamine, and the mixture was reacted, with stirring, at 150° C. for 3 hours. However, the desired product 2,5,7,8-tetramethyl-6-acetoxy-2-hydroxy-methylchroman could not be obtained at all.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05495026
Source datasetuspto-grants-1996_02
ORD IDord-c2370559f9a64d2199023b225cc0ecc1
Source noteuspto-grants-1996_02