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ChemicalBook CAS DataBase List TERT-BUTYL 1-OXA-4,9-DIAZASPIRO[5.5]UNDECANE-4-CARBOXYLATE

TERT-BUTYL 1-OXA-4,9-DIAZASPIRO[5.5]UNDECANE-4-CARBOXYLATE synthesis

4synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 5 steps
1.1: sodium hydride / mineral oil; dimethyl sulfoxide / 1.17 h / 10 - 20 °C / Cooling with ice
1.2: 1.5 h / 20 °C
2.1: triethylamine / methanol; water / 36 h / 50 °C
3.1: sodium hydroxide / tetrahydrofuran; ethanol / 5 h / Reflux
4.1: sodium carbonate / water; tetrahydrofuran / 1 h / 0 °C
5.1: ammonium formate; palladium 10% on activated carbon / methanol / 1 h / Reflux

References:

SHIRE INTERNATIONAL GMBH;CREMONESI, Susanna;LUKER, Tim;SEMERARO, Teresa;MICHELI, Fabrizio WO2016/42452, 2016, A1