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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 255464Generated: October 27, 2026

Citric Acid → Methanesulfonic acid 2-tert-butoxycarbonylamino-2-methyl-propyl ester

https://huagongshe.com/reaction/255464

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantMethanesulfonyl chlorideHCID 31297—
Reactanttert-butyl N-(1-hydroxy-2-methylpropan-2-yl)carbamateHCID 14578673—
SolventTriethylamineHCID 8471—
ProductMethanesulfonic acid 2-tert-butoxycarbonylamino-2-methyl-propyl esterHCID 11659022—

Reaction Steps

N-Boc-2-Amino-2-methylpropanol is dissolved in triethylamine under argon at 0° C. Methanesulfonyl chloride is added and the mixture is stirred overnight. The solution is poured into 10% aqueous citric acid and extracted with ethyl acetate. The organic layer is dried over MgSO4, filtered and evaporated to give N-Boc-2-amino-2-methyl-1-propyl mesylate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04698231
Source datasetuspto-grants-1987_10
ORD IDord-6e669e8cf7134e588878d14a9ac08ce2
Source noteuspto-grants-1987_10