Triethylamine → HCID 9949633, compound

Participants

Reaction Steps

In 11 ml of abs. DMF was successively dissolved 1.061 g (1.25 eq.) of methyl 4-iodo-benzoate, 114 mg (0.05 eq.) of bis (triphenylphosphine)palladium(II) chloride, 74.1 mg (0.12 eq.) of CuI, and 1.13 ml (2.5 eq.) of triethylamine. 701 mg (3.24 mmol) of the above prepared 6-ethynyl-4-methoxymethyl-4-methyl-chroman, dissolved in 2.7 ml of abs. DMF, was added within 1 h via dropping funnel. After 0.25 h, the reaction was quenched by pouring the reaction mixture onto crushed ice/ HCl. Extraction with diethylether, washing the organic phase twice with water, drying it over magnesium sulfate, filtration and evaporation of the solvent yielded after flash chromatography (SiO2, hexane/ ethylacetate 92/8) 630 mg of the title compound as yellowish oil.

Provenance & Evidence