1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 86650594, compound

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Reaction Steps

To a solution (7 mL) of the compound (1.3 g, 3.4 mmol) obtained in Example 95c in tetrahydrofuran were added 1,8-diazabicyclo[5.4.0]undec-7-ene (0.61 mL, 4.1 mmol) and diphenylphosphoryl azide (1.1 g, 4.1 mmol), and the mixture was stirred at room temperature overnight. The solvent was evaporated under reduced pressure and the resulting crude title compound was purified by column chromatography (hexane-hexane/ethyl acetate=85/15) to give the title compound (1.1 g, 80%) as a colorless oil.

Provenance & Evidence