Cesium carbonate → HCID 59312356, compound

Participants

Reaction Steps

2,7-dibenzyl-4-chloro-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepine (70 mg, 0.193 mmol) of Preparation 38, Step B, was dissolved in dioxane (5 ml) and Caesium carbonate (251 mg, 0.77 mmol), trimethylboroxine (0.054 ml, 0.385 mmol) and Catalyst 1 (10 mg) were added. The reaction was refluxed under nitrogen for 3 h. The reaction was filtered over arbocel and diluted with ethyl acetate, washed with water, dried over MgSO4 filtered and concentrated in vacuo to afford the title compound as a colourless oil in 99% yield, 66 mg.

Provenance & Evidence