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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 616972Generated: October 31, 2026

Hydrochloric Acid → HCID 20367029, compound

https://huagongshe.com/reaction/616972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium borohydrideHCID 4311764—
ReactantHCID 20367021HCID 20367021—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 20367029HCID 20367029—

Reaction Steps

6,7,8,9-tetrahydro-7-methyl-9-oxo-5H-benzocycloheptene-2-acetic acid (6.3 g) is dissolved in 90 cc of methanol, and 4.1 g of sodium borohydride are added in small portions within 10 minutes while stirring at room temperature. The solution is stirred for a further 30 minutes, is diluted with water, acidified with 1 N hydrochloric acid, and the crude 6,7,8,9-tetrahydro-9-hydroxy-7-methyl-5H-benzocycloheptene-2-acetic acid is filtered off. The crude product has a M.P. of 161°-163°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076838
Source datasetuspto-grants-1978_02
ORD IDord-9b09391fc6854fe59c895cba86b2a585
Source noteuspto-grants-1978_02