Acetic Acid → trans-4-Bromo-beta-nitrostyrene

HRID 640524

Reaction equation

HRID 640524 reaction equation
[Br:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=O)=[CH:4][CH:3]=1.[N+:10]([CH3:13])([O-:12])=[O:11].C([O-])(=O)C.[NH4+].C(O)(=O)C>O>[Br:1][C:2]1[CH:9]=[CH:8][C:5](/[CH:6]=[CH:13]/[N+:10]([O-:12])=[O:11])=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 6375NitromethaneHCID 707414-BromobenzaldehydeHCID 517165Ammonium Acetate

Product 1

HCID 688204trans-4-Bromo-beta-nitrostyreneYield 83.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of 4-bromobenzaldehyde (16.8 g, 91 mmol), nitromethane (24.6 mL, 455 mmol), ammonium acetate (14 g, 182 mmol), and acetic acid (160 mL) was stirred for 4 hours at 100° C. This mixture was cooled to room temperature and poured into water. The precipitate thus produced was collected, washed with water, and dried under a reduced pressure to obtain the title compound (17.4 g). The title compound was used in the following reaction without any further purification.

Workup

  1. temperatureThis mixture was cooled to room temperature
  2. customThe precipitate thus produced
  3. customwas collected
  4. washwashed with water
  5. customdried under a reduced pressure

Sources & evidence

ORD record
ord-f42db2017cf6485285b958749c00ef38
Source dataset
uspto-grants-2010_04
Patent number
US07691882B2

Linked notes

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