Bromomethylcyclopropane → (4-Bromo-phenyl)-[4-[6-(cyclopropylmethyl-methyl-amino)-hexyloxy]-phenyl]-methanone

HRID 2306486Notes

Reaction equation

[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][NH:23][CH3:24])=[CH:12][CH:11]=2)=[O:9])=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.Br[CH2:35][CH:36]1[CH2:38][CH2:37]1>CC(N(C)C)=O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]([C:10]2[CH:15]=[CH:14][C:13]([O:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][N:23]([CH2:35][CH:36]3[CH2:38][CH2:37]3)[CH3:24])=[CH:12][CH:11]=2)=[O:9])=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of 0.1 g of (4-bromo-phenyl)-[4-(6-methylamino-hexyloxy)-phenyl]-methanone, 0.13 ml of diisopropylethylamine and 0.06 ml of bromomethyl-cyclopropane in 20 ml of dimethylacetamide is stirred at 50° C. for 24 hrs., concentrated and the residue is treated with sodium hydrogen carbonate solution and extracted with methylene chloride. The organic phases are washed with saturated sodium chloride solution, dried and evaporated. The residue is purified over silica gel with CH2Cl2/MeOH/NH4OH (9415.410.6 to 85/12.5/2.5). There is obtained 0.68 g of (4-bromo-phenyl)-[4-[6-(cyclopropylmethyl-methyl-amino)-hexyloxy]-phenyl]-methanone which is converted into the fumarate, MS: m/e 443 (M+H+, 1Br).

Workup

concentration, concentrated
additionthe residue is treated with sodium hydrogen carbonate solution
extractionextracted with methylene chloride
washThe organic phases are washed with saturated sodium chloride solution
customdried
customevaporated
customThe residue is purified over silica gel with CH2Cl2/MeOH/NH4OH (9415.410.6 to 85/12.5/2.5)

Sources & evidence

ORD record: ord-19df42fa03044e71801f5640e3781fcd
Source dataset: uspto-grants-2002_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06441177B1

Reaction notes

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