ChemicalBook CAS DataBase List Codonopsine

Codonopsine synthesis

4synthesis methods

Product Name:Codonopsine
CAS Number:26989-20-8
Molecular formula:C14H21NO4
Molecular Weight:267.3208

Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-

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Yield:-

Steps:

Multi-step reaction with 5 steps
1: 1.) NaBH₄ 2.) NaH / 1.) MeOH, 0 deg C, 2.) THF, 60 deg C
2: 1.) BF₃*Et₂O 2.) Et₃N / 1.) CH₂Cl₂, 2.) THF
3: 55 percent / MCPBA / CH₂Cl₂
4: 30 percent / conc. H₂SO₄ / dioxane; H₂O / 95 °C
5: 73 percent / LAH / tetrahydrofuran / Heating

References:

Wang;Calabrese [Journal of Organic Chemistry,1991,vol. 56,# 14,p. 4341 - 4343]

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References

Benzene, 4-(2-bromoethenyl)-1,2-dimethoxy-, (E)-

69731-27-7
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References

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References