Nitromethane → 1-butyl-4-((E)-2-nitro-vinyl)-benzene

Temperatur

100 °C

A mixture of 4-n-butylbenzaldehyde (5 g, 30.8 mmol), nitromethane (3.31 mL, 61.6 mmol), ammonium acetate (3.56 g, 46.2 mmol) and acetic acid (50 mL) was stirred for 5 hours at 100° C. The mixture was cooled to room temperature, concentrated under a reduced pressure, and diluted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (5.7 g). This compound was used in the subsequent reaction without being purified.

1. temperatureThe mixture was cooled to room temperature
2. concentrationconcentrated under a reduced pressure
3. additiondiluted with ethyl acetate
4. washThe organic layer was washed with water and saturated aqueous sodium chloride
5. dry with materialdried over anhydrous magnesium sulfate
6. filtrationfiltered
7. concentrationThe filtrate was concentrated under a reduced pressure

ORD-Eintrag

ord-f6910bf8e6cd432ba23e37451327aca2

Quelldatensatz

uspto-grants-2010_04

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07691882B2