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ChemicalBook CAS DataBase List Tetrahydropalmatine
2934-97-6

Tetrahydropalmatine synthesis

11synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 7 steps
1: LiAlH4 / tetrahydrofuran / 2 h / 20 °C
2: 81 percent / Et3N / CH2Cl2 / 1.5 h / 0 °C
3: 91 percent / m-CPBA / CH2Cl2 / 1 h / 0 °C
4: 25 percent / CH3SO3H / CCl4 / 0.33 h / Heating
5: 90 percent / Raney Ni / ethanol / 2 h / Heating
6: POCl3; K2CO3 / acetonitrile / 0.67 h / 60 °C
7: NaBH4 / methanol / 1 h / Heating

References:

Hanaoka, Miyoji;Hirasawa, Taeko;Cho, Won Jea;Yasuda, Shingo [Chemical and Pharmaceutical Bulletin,2000,vol. 48,# 3,p. 399 - 404]

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