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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 613437Generated: October 31, 2026

Potassium Hydroxide → 6-Benzyloxy-2,2-dimethyl-3,4-epoxychroman

https://huagongshe.com/reaction/613437

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
Reactant6-Benzyloxy-3-bromo-2,2-dimethyl-chroman-4-olHCID 19593332—
SolventTetrahydrofuranHCID 8028—
Product6-Benzyloxy-2,2-dimethyl-3,4-epoxychromanHCID 10924007103.2%

Reaction Steps

A solution of 9.5 g (28.5 mmol) of 6-benzyloxy-3-bromo-2,2-dimethyl-chroman-4-ol in 100 ml of THF was stirred overnight with 4.6 g (82 mmol) of potassium hydroxide powder. The batch was subsequently filtered through Celite and the filtrate was concentrated using a rotary evaporator, giving 8.3 g of 6-benzyloxy-2,2-dimethyl-3,4-epoxychroman, m.p. 70-72° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06008245
Source datasetuspto-grants-1999_12
ORD IDord-abff71dbd7f342b5984830f7423c0340
Source noteuspto-grants-1999_12