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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291499Generated: October 31, 2026

Hydrochloric Acid → HCID 14013845, compound

https://huagongshe.com/reaction/2291499

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
ReactantHCID 14013844HCID 14013844—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductHCID 14013845HCID 14013845—

Reaction Steps

A mixture of 340 g (0.722 mol) of product from Example 99, 87.67 g (0.866 mol) of triethylamine and 10.00 g of 5% Pd/C (50% water coated) in 700 ml of ethanol was hydrogenated at 50° C. under 446 kPa of H2 pressure for 18 hours. Then 150 ml of 18% HCl (0.722 mol) was added, and the mixture was hydrogenated at 50° C. under 446 kPa of H2 pressure for 2 hours. The reaction mixture was filtered through celite, and concentrated in vacuo to remove the ethanol. The residue was caken up in H2O, and extracted with diethyl ether. The ether phase was dried (MgSO4) and concentrated in vacuo to 161.7 g (65%) of a brown oil, 90pure by GC analysis. Then 5.0 g were urified by HPLC in 5ethyl acetate/cyclohexane affording 3.9 g of product as a yellow solid; mp 29-30° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04797149
Source datasetuspto-grants-1989_01
ORD IDord-40c497fb168c4f85b2bc60142d71f6c6
Source noteuspto-grants-1989_01