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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 618688Generated: October 29, 2026

Hydrochloric Acid → HCID 21847890, compound

https://huagongshe.com/reaction/618688

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSilicaHCID 24261—
ReactantHCID 12088877HCID 12088877—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21847890HCID 2184789099.9%

Reaction Steps

N-tert-Butyloxycarbonyl-3-ethoxycarbonyl-3-methyl-1,2,3,4-tetrahydroisoquinoline (10 g) was dissolved in 100 mL of tetrahydrofuran and lithium aluminum hydride (3.42g) was added carefully at 0° C. and the mixture was stirred for 30 min. Then, it was refluxed for 3 h and the reaction mixture was poured onto ice portion wise. The mixture was acidified to pH 1 by 2N HCl (2000 mL) and fltered over Celite 545. Volatile components in the resulting clear solution was evaporated in vacuo and after addition of 100 mL brine, it was extracted with dichloromethane (100 mL×3). Combined organic layer was dried over MgSO4, filtered and concentrated to afford the product as yellow solid (5.98 g)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05955471
Source datasetuspto-grants-1999_09
ORD IDord-f3f1fb85f9f44bb0bfca1d5ac24aeb6c
Source noteuspto-grants-1999_09