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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1836880Generated: October 31, 2026

Triethylamine → HCID 23498911, compound

https://huagongshe.com/reaction/1836880

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2-BromopyrimidineHCID 78345—
Reactant3-Ethynyl-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthaldehydeHCID 23498921—
CatalystHCID 178418476HCID 178418476—
SolventDimethylformamideHCID 6228—
ProductHCID 23498911HCID 2349891170.4%

Reaction Steps

A solution of 0.400 g (1.66 mmol) of 3-ethynyl-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthaldehyde, 0.278 g (1.75 mmol) of 2-bromopyrimidine, 0.053 g (0.075 mmol) of dichlorobis(triphenylphosphine)palladium(II), 0.026 g (0.14 mmol) of cuprous iodide, and 0.253 g (2.50 mmol) of triethylamine in 12 mL of dimethylformamide was heated to 45° C. for 3 hours, cooled to room temperature and partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The product was purified by flash chromatography on silica gel (25% ethyl acetate/hexane) to afford 0.372 g (70%) of 5,5,8,8-tetramethyl-3-pyrimidin-2-ylethynyl-5,6,7,8-tetrahydro-2-naphthaldehyde.(M+=318).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06777418B2
Source datasetuspto-grants-2004_08
ORD IDord-597b57be71ac42c2b994c04773670cca
Source noteuspto-grants-2004_08