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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 867211Generated: October 30, 2026

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

https://huagongshe.com/reaction/867211

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 numberUS04103084
Source datasetuspto-grants-1978_07
ORD IDord-dba828c646aa4f14b6eaa97935920777
Source noteuspto-grants-1978_07