6,11-Dihydro-5H-dibenz[b,e]azepine → 5-(4-Nitro-3-methylbenzoyl)-6,11-dihydro-5H-dibenz[b,e]azepine

HRID 1598041Notes

Reaction equation

HRID 1598041 reaction equation
[CH:1]1[C:11]2[CH2:10][C:9]3[CH:12]=[CH:13][CH:14]=[CH:15][C:8]=3[CH2:7][NH:6][C:5]=2[CH:4]=[CH:3][CH:2]=1.[CH3:16][C:17]1[CH:18]=[C:19]([CH:23]=[CH:24][C:25]=1[N+:26]([O-:28])=[O:27])[C:20](Cl)=[O:21].C(N(C(C)C)CC)(C)C>ClCCl>[N+:26]([C:25]1[CH:24]=[CH:23][C:19]([C:20]([N:6]2[CH2:7][C:8]3[CH:15]=[CH:14][CH:13]=[CH:12][C:9]=3[CH2:10][C:11]3[CH:1]=[CH:2][CH:3]=[CH:4][C:5]2=3)=[O:21])=[CH:18][C:17]=1[CH3:16])([O-:28])=[O:27]

Participants

5

Reactant 3

HCID 679746,11-Dihydro-5H-dibenz[b,e]azepineHCID 81531DiisopropylethylamineHCID 30157953-Methyl-4-nitrobenzoyl chloride

Product 1

HCID 545062435-(4-Nitro-3-methylbenzoyl)-6,11-dihydro-5H-dibenz[b,e]azepineYield 65.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 1.17 g of 6,11-dihydro-5H-dibenz[b,e]azepine, 1.20 g of 3-methyl-4-nitrobenzoyl chloride, 0.80 ml of diisopropylethylamine in 25 ml of dichloromethane is stirred 18 hours at room temperature. The mixture is washed with water and dried (Na2SO4). The solution is filtered through a thin pad of hydrous magnesium silicate. The filtrate is concentrated and diluted while hot with hexane to give 1.40 g of crystals. Recrystallization from dichloromethane-hexane gives 1.26 g of crystals, m.p. 179°-180° C.

Workup

  1. washThe mixture is washed with water
  2. dry with materialdried (Na2SO4)
  3. filtrationThe solution is filtered through a thin pad of hydrous magnesium silicate
  4. concentrationThe filtrate is concentrated
  5. additiondiluted while hot with hexane

Sources & evidence

ORD record
ord-0aee9e8d3bb440b986146b35a6ca2ba8
Source dataset
uspto-grants-1998_04
Patent number
US05736538

Reaction notes

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