Reaktionsgleichung
[C:1](ON=O)(C)([CH3:3])[CH3:2].C(Br)C=C.[N+:12]([C:15]1[CH:21]=[CH:20][C:18](N)=[C:17]([C:22]([F:25])([F:24])[F:23])[CH:16]=1)([O-:14])=[O:13].NC1C=CC=CC=1>CC#N>[CH2:3]([C:18]1[CH:20]=[CH:21][C:15]([N+:12]([O-:14])=[O:13])=[CH:16][C:17]=1[C:22]([F:25])([F:24])[F:23])[CH:1]=[CH2:2]Komponenten
Reaktionsbedingungen
- Temperatur
- 18.5 °C
Versuchsvorschrift
To a solution of t-butylnitrite (535 μl, 4.5 mmol) and allyl bromide (3.9 ml, 45.0 mmol) in CH3CN (3 ml), 4-nitro-2-trifluoromethylaniline (618 mg, 3.0 mmol) was added during 20 minutes while maintaining the temperature of the reaction mixture at 18-19° C. At the end of the addition of the aniline, extra t-butylnitrite (180 μl, 1.5 mmol) was added to the reaction mixture which then was stirred at 25° C. for one hour. The volatile material in the reaction mixture was removed at reduced pressure. Column chromatography (heptane-ethyl acetate 49:1) gave 587 mg (85%) of allyl-4-nitro-2-trifluoromethylbenzene as a light yellow oil. 1H NMR (CDCl3, 400 MHz) δ 8.53, (d, 1H, J=2.4 Hz), 8.35, (dd, 1H, J=8.5, 2.4 Hz), 7.59, (d, 1H, J=8.5 Hz), 6.00-5.88, (m, 1H), 5.24-5.12, (m, 2H), 3.68, (d, 2H, J=6.5 Hz); 13C NMR (CDCl3, 100 MHz) δ 146.8, 146.6, 134.9, 133.0, 130.3, (q, J=32.2 Hz), 127.7, 126.9, 124.9, 122.2, 122.1, (q, J=6.0 Hz), 118.7, 37.0, (m); Anal HRMS Calcd. for C10H8F3NO2 (M): 231.0507. Found: 208.0515.
Aufarbeitung
- additionwas added to the reaction mixture which
- customThe volatile material in the reaction mixture was removed at reduced pressure
Quellen und Nachweise
- ORD-Eintrag
- ord-f07f0f4b5c3c459cbe81adf1dca52af5
- Quelldatensatz
- uspto-grants-2001_09
- Patentnummer
- US06284894B1
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