ChemicalBook CAS DataBase List KUWANONC

KUWANONC synthesis

4synthesis methods

Product Name:KUWANONC
CAS Number:62949-79-5
Molecular formula:C25H26O6
Molecular Weight:422.47

89-86-1 Synthesis

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Yield:-

Steps:

Multi-step reaction with 11 steps
1.1: potassium carbonate / acetone / 24 h / Reflux
2.1: sodium hydroxide; water / methanol / 12 h / Reflux
3.1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 24 h / 20 °C
4.1: sodium hydride / tetrahydrofuran / 1 h / Reflux
5.1: potassium carbonate / acetone / 0.17 h
5.2: 2 h / 50 °C
6.1: copper dichloride; chloro-trimethyl-silane / acetonitrile / 0.5 h / 20 °C
7.1: Lindlar's catalyst; ammonium formate / methanol; ethyl acetate / 0.67 h / 50 °C
8.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 1 h / 20 °C
9.1: hydrogenchloride; water / tetrahydrofuran / 5 h / Reflux
10.1: tetrakis(triphenylphosphine) palladium⁽⁰⁾ / tetrahydrofuran / 0.17 h / 20 °C / Inert atmosphere
11.1: sodium acetate / acetic anhydride / 6 h / 170 °C / Microwave irradiation
11.2: 0.5 h / 20 °C

References:

Tang, Fei;Wang, Yang;Hou, Ai-Jun [Tetrahedron,2014,vol. 70,# 26,p. 3963 - 3970]

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65490-09-7 Synthesis