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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 372540Generated: October 30, 2026

Sodium Chloride → 7-dimethylamino-5-hydroxy-6,7,8,9-tetrahydro [5H] benzocycloheptene

https://huagongshe.com/reaction/372540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ChlorideHCID 5234—
ReactantSodium borohydrideHCID 4311764—
Reactant7-dimethylamino-5-oxo-6,7,8,9-tetrahydro [5H] benzocyclohepteneHCID 54467523—
SolventEthanolHCID 702—
SolventWaterHCID 962—
Product7-dimethylamino-5-hydroxy-6,7,8,9-tetrahydro [5H] benzocyclohepteneHCID 2038443891.1%

Reaction Conditions

Temperature20 °C

Reaction Steps

A solution of 8.7 g of sodium borohydride in 87 ml of water was added to a solution of 8.7 g of the product of Step A in 435 ml of ethanol and the mixture was stirred at 20° C for 11/2 hours and was then poured into ice water. The mixture was saturated with sodium chloride and was extracted with ethyl acetate. The organic phase was washed with aqueous sodium chloride solution, was dried and evaporated to dryness to obtain 8 g of raw 7-dimethylamino-5-hydroxy-6,7,8,9-tetrahydro [5H] benzocycloheptene which was used as is for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04091115
Source datasetuspto-grants-1978_05
ORD IDord-0fa9f34a0f62490caf88cb36b997cfeb
Source noteuspto-grants-1978_05