methyl 2H-chromene-3-carboxylate → Methyl chroman-3-carboxylate
Reaktionsgleichung
[CH3:1][O:2][C:3]([C:5]1[CH2:6][O:7][C:8]2[C:13]([CH:14]=1)=[CH:12][CH:11]=[CH:10][CH:9]=2)=[O:4].COC(C1CC2C(=CC=C(S(Cl)(=O)=O)C=2)OC1)=O>>[CH3:1][O:2][C:3]([CH:5]1[CH2:14][C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[O:7][CH2:6]1)=[O:4]Komponenten
3
Versuchsvorschrift
Compound 17A was prepared according to the method of example 3A utilizing compound 16C. Compound 17A was prepared in 95% yield. MS: 193 (M−1)+. Preparation of 6-Chlorosulfonyl-chroman-3-carboxylic acid methyl ester (Compound 17B)
Aufarbeitung
- customCompound 17A was prepared
Quellen und Nachweise
- ORD-Eintrag
- ord-389d14d3b01945c5889958c4af514a89
- Quelldatensatz
- uspto-grants-2005_03
- Patentnummer
- US06867224B2
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