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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1196031Generated: November 1, 2026

Water → HCID 22420297, compound

https://huagongshe.com/reaction/1196031

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 14838442HCID 14838442—
ReactantAluminium lithium hydrideHCID 21226445—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 22420297HCID 2242029798.3%

Reaction Steps

At room temperature and while stirring, a solution of 16.91 g (82 mmol) of 2-methoxycarbonylmethylchroman in 150 ml of absolute tetrahydrofuran is added dropwise within a period of 30 minutes to a suspension of 3.11 g (82 mmol) of lithium aluminium hydride in 150 ml of absolute diethyl ether. Stirring is continued for a further 16 hours at room temperature and then the whole is carefully decomposed with 3.1 ml of water, 3.1 ml of sodium hydroxide solution (15% strength) and 9.3 ml of water. The precipitate formed is filtered off with suction and the filtrate is concentrated by evaporation in vacuo. The oily residue is dissolved in diethyl ether. The ethereal solution is washed with water, dried over sodium sulphate and concentrated by evaporation in vacuo. 14.36 g (98.3%) of 2-(2-hydroxyethyl)chroman are obtained in the form of a colourless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05112855
Source datasetuspto-grants-1992_05
ORD IDord-5c2c0230b99442b1961cda32f8d0ab18
Source noteuspto-grants-1992_05