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ChemicalBook CAS DataBase List HYDROPRENE
41096-46-2

HYDROPRENE synthesis

8synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 8 steps
1: MnO2
2: Et3N / N-(2-hydroxyethyl)-thiazolium bromide / dioxane / 20 h / 95 - 100 °C
3: sodium borohydride / tetrahydrofuran / 1 h / 0 °C
4: pyridine / 24 h / 25 °C
5: potassium t-butoxid, 18-Crown-6 / benzene / 0.5 h / Ambient temperature
6: NaBH4 / ethanol / 4 h / Heating
7: PBr3, LiBr, 2,4,6-collidine / 3 h / -40 - 0 °C
8: 1.) ZnBr2, 2.) DBU / 1.) ether, -40 deg C to 0 deg C, 2 h, 2.) 50 deg C, 2 h

References:

Baan, Gabor;Vinczer, Peter;Novak, Lajos;Szantay, Csaba [Tetrahedron Letters,1985,vol. 26,# 35,p. 4261 - 4264]

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