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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 614444Generated: October 30, 2026

Dimethyl Sulfoxide → N-[alpha-(t-butoxycarbonyl) benzyloxy] phthalimide

https://huagongshe.com/reaction/614444

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
ReactantN-HydroxyphthalimideHCID 10665—
ReactantPotassium CarbonateHCID 11430—
ReactantTert-butyl 2-bromo-2-phenylacetateHCID 11000147—
SolventWaterHCID 962—
ProductN-[alpha-(t-butoxycarbonyl) benzyloxy] phthalimideHCID 2024949378%

Reaction Steps

(a)(i) A mixture of N-hydroxyphthalimide (24.5 g), anhydrous potassium carbonate (16.5 g), t-butyl α-bromophenylacetate (41 g) and dimethylsulphoxide (225 ml) was stirred for 18 hours and was then poured into water (1.2 liters). The precipitated solid was filtered off, washed well with water, dried, and crystallised from industrial methylated spirits to give N-[α-(t-butoxycarbonyl) benzyloxy] phthalimide (41 g, 78%); m.p. 120.6°-121.5°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04144393
Source datasetuspto-grants-1979_03
ORD IDord-3d935ac20a864332b69ef0a12b4ac9f2
Source noteuspto-grants-1979_03