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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 839452Generated: October 31, 2026

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

https://huagongshe.com/reaction/839452

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 (24.5g), anhydrous potassium carbonate (16.5g), t-butyl α-bromophenylacetate (41g) 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 (41g, 78%); m.p. 120.6°-121.5°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04095021
Source datasetuspto-grants-1978_06
ORD IDord-0aecb8d15e0f42cb9b1ed08a1c512a32
Source noteuspto-grants-1978_06