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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1049377Generated: November 1, 2026

Trimethylacetamide → HCID 90403542, compound

https://huagongshe.com/reaction/1049377

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylacetamideHCID 12957—
ReactantIsopropenyl chloroformateHCID 93846—
ReactantLithium HexamethyldisilazideHCID 2733832—
SolventTetrahydrofuranHCID 8028—
ProductHCID 90403542HCID 90403542106%

Reaction Steps

A −78° C. solution of 2,2,2-trimethylacetamide (1 g, 9.89 mmol) in THF (20 mL) was treated drop-wise with lithium bis(trimethylsilyl)amide (1.0N in THF, 11.86 mL, 11.86 mmol), stirred for 30 min, treated drop-wise with a solution of isopropenyl chloroformate (1.43 g, 11.86 mmol) in THF (5 mL), warmed to RT and stirred for 1 h. The mixture was treated with satd. NaHCO3, extracted with EtOAc (2×) and the combined organics were washed with satd. NH4Cl, then brine, dried over Na2SO4 and concentrated to dryness to afford prop-1-en-2-yl pivaloylcarbamate (1.94 g, 106%) which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09382228B2
Source datasetuspto-grants-2016_07
ORD IDord-263ff9206f034c7191fc34918ffbf972
Source noteuspto-grants-2016_07