Hydrochloric Acid → 5-Cyclopentyl-1,2-oxazol-3-amine
Reaktionsgleichung
C(C1ON=C(N)C=1)(C)C.[CH:10]1([C:15]2([CH2:20][C:21](=[N:23][OH:24])[NH2:22])OCCO2)[CH2:14][CH2:13][CH2:12][CH2:11]1.Cl>C(O)C>[CH:10]1([C:15]2[O:24][N:23]=[C:21]([NH2:22])[CH:20]=2)[CH2:11][CH2:12][CH2:13][CH2:14]1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
According to the procedure described for 5-isopropylisoxazol-3-amine in Example 133A Step 4, 2-(2-cyclopentyl-1,3-dioxolan-2-yl)-N′-hydroxyacetimidamide (1.99 g, 93 mmol) was dissolved in ethanol (2 mL) and acidified with 37% aq. hydrochloric acid to give 5-cyclopentylisoxazol-3-amine (875 mg, 62%) as a white solid. 1H NMR (300 MHz, CDCl3) δ 5.52 (s, 1H), 3.86 (bs, 2H), 3.09-3.04 (m, 1H), 2.04 (d, 2H), 1.75-1.62 (m, 6H); LC-MS (ESI) m/z 153 (M+H)+.
Quellen und Nachweise
- ORD-Eintrag
- ord-03d5060adcda41758bc549fb8565bd15
- Quelldatensatz
- uspto-grants-2013_12
- Patentnummer
- US08618289B2
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