Tetramethyltin → 5-Methyl-6-morpholin-4-yl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl Ester

Participants

Reaction Conditions

Reaction Steps

To a stirred solution 0.38 mmol 5-chloro-6-morpholin-4-yl-1,3-dihydro-isoindole-2-carboxylic acid tert-butyl ester (Example A44(a)) in 3 ml dioxane were added 0.02 mmol bis(tri-tert-butylphosphine)palladium(0), 0.84 mmol cesium fluoride and 0.77 mmol tetramethylstannane and the mixture was heated at 80° C. for 5 h. The reaction mixture was then cooled to room temperature and concentrated in vacuo. The residue was purified by chromatography (SiO2, heptane/ethyl acetate) to yield the title compound as a light yellow solid (43% yield). MS (m/e): 219.4 ([M+H−Me2C═CH2]+, 100%).

Provenance & Evidence