反应详情

To a solution of benzyl 3-azido-4-hydroxypiperidine-1-carboxylate and benzyl 4-azido-3-hydroxypiperidine-1-carboxylate (1.0 equiv.) in dioxane (0.14M) was added PPh3 (2.0 equiv.) and the reaction was heated to reflux for 1 h. The solution was then concentrated under vacuo and purified via silica gel column chromatography eluting with DCM, 10% MeOH and 1% Et3N to give benzyl 3,7-diazabicyclo[4.1.0]heptane-3-carboxylate as a clear oil in 25% yield. LCMS (m/z): 233.0 (MH+), Rt=1.94 min.

1. temperaturethe reaction was heated
2. temperatureto reflux for 1 h
3. concentrationThe solution was then concentrated under vacuo
4. custompurified via silica gel column chromatography
5. washeluting with DCM, 10% MeOH and 1% Et3N