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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 844664Generated: October 30, 2026

Potassium Carbonate → 8-Cyclopropyl-6-ethynyl-2,2,4,4-tetramethylchroman

https://huagongshe.com/reaction/844664

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant8-Cyclopropyl-6-trimethylsilanylethynyl-2,2,4,4-tetramethyl chromanHCID 18719789—
SolventMethanolHCID 887—
Product8-Cyclopropyl-6-ethynyl-2,2,4,4-tetramethylchromanHCID 22569006—

Reaction Steps

Following general procedure E and using 8-cyclopropyl-6-trimethylsilanylethynyl-2,2,4,4-tetramethyl chroman (Intermediate 33, 0.17 g, 0.68 mmol), methanol and potassium carbonate (0.2 g, 1.47 mmol) the title compound was obtained as an oil (0.064 g, 47%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06380256B1
Source datasetuspto-grants-2002_04
ORD IDord-4194b69ce306416f8c563569780f7a64
Source noteuspto-grants-2002_04