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ChemicalBook CAS DataBase List Olean-12-eno[2,3-c][1,2,5]oxadiazol-28-oic acid
130216-69-2

Olean-12-eno[2,3-c][1,2,5]oxadiazol-28-oic acid synthesis

8synthesis methods
Oleanonic acid benzyl ester

869788-74-9
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Olean-12-eno[2,3-c][1,2,5]oxadiazol-28-oic acid

130216-69-2
9 suppliers
inquiry

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Yield:-

Steps:

Multi-step reaction with 4 steps
1: 58 percent / NaNO2; aq. H2SO4 / methanol; tetrahydrofuran / 20 °C
2: 80 percent / hydroxylamine hydrochloride; pyridine / 80 °C
3: 82 percent / NaOH / ethane-1,2-diol / 0.5 h / 200 °C
4: 100 percent / H2 / Pd/C / tetrahydrofuran / 20 °C

References:

Chen, Jun;Liu, Jun;Zhang, Luyong;Wu, Guanzhong;Hua, Weiyi;Wu, Xiaoming;Sun, Hongbin [Bioorganic and Medicinal Chemistry Letters,2006,vol. 16,# 11,p. 2915 - 2919]

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