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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2417641Generated: October 27, 2026

Hydrochloric Acid → (S)-1-[2-Methyl-3-[(4-nitrobenzofurazan-7-yl)thio]-1-oxopropyl]-L-proline

https://huagongshe.com/reaction/2417641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantNBD-ClHCID 25043—
ReactantSodium BicarbonateHCID 516892—
Reactant1-(2-Methyl-3-sulfanylpropanoyl)-L-prolineHCID 12877547—
SolventWaterHCID 962—
SolventMethyl Ethyl KetoneHCID 6569—
Product(S)-1-[2-Methyl-3-[(4-nitrobenzofurazan-7-yl)thio]-1-oxopropyl]-L-prolineHCID 22823694—

Reaction Steps

3 Mg of 1-(3-mercapto-2-methyl-1-oxopropyl)-L-proline was placed in a vial and dilute hydrochloric acid (0.1N, 2 ml) added to dissolve same. 3 Ml of 0.1M sodium bicarbonate solution was next added and the mixture was mixed in a vortex mixer. Thereafter, 3 ml of 1% (w/v) 4-chloro-7-nitrobenzofurazan in methyl ethyl ketone was added to the mixture, the vial was then closed and mixing was continued. The vial was held under running hot tap water, while shaking the vial, for about 2 minutes. The vial was then allowed to stand for 3 minutes, the organic (upper) layer was removed and was found to contain the title compound. The title compound was found to be fluorescent.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04469870
Source datasetuspto-grants-1984_09
ORD IDord-aeecc043a4414f69aa09b8dd580f5e66
Source noteuspto-grants-1984_09