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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1593367Generated: October 26, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/1593367

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantZ-D-Trp-NH2HCID 853881—
CatalystPalladiumHCID 23938—
SolventDimethylformamideHCID 6228—
ProductHydrochloric AcidHCID 313—
ProductD-tryptophanamideHCID 688582—

Reaction Steps

Z-D-Trp-NH2 (3 g; 8.9 mmol; 1 eq.) was dissolved in DMF (100 ml). HCl 36% (845 μl; 1.1 eq.), water (2 ml) and palladium on activated charcoal (95 mg, 0.1 eq.) were added to the stirred mixture. The solution was bubbled under hydrogen for 24 hr. When the reaction went to completion, the palladium was filtered on celite. The solvent was removed in vacuo to afford HCl, H-D-Trp-NH2 as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07297681B2
Source datasetuspto-grants-2007_11
ORD IDord-0c7c0ca825d1497d922649204cb53b3a
Source noteuspto-grants-2007_11