Ethyl Acetate → HCID 54400560, compound

HRID 1816692Notes

Reaction equation

[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]Br)=[CH:4][CH:3]=1.[CH3:17][C@H:18]1[O:23][C@@H:22]([CH3:24])[CH2:21][NH:20][CH2:19]1.C(=O)([O-])[O-].[K+].[K+].C(OCC)(=O)C>CN(C)C=O>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][N:20]2[CH2:19][C@H:18]([CH3:17])[O:23][C@H:22]([CH3:24])[CH2:21]2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 1-bromo-4-(7-bromoheptyloxy)benzene (4.405 g), cis-2,6-dimethylmorpholine (1.55 ml) and potassium carbonate (2.09 g) in N,N-dimethylformamide (22 ml) was stirred for 1 hour at 70° C. To the reaction mixture was added cis-2,6-dimethylmorpholine (7.75 ml) and stirred for 1 hour at 70° C. Ethyl acetate (100 ml) was added, and the mixture washed with water (50 ml×2) and brine. The separated organic layer was dried over magnesium sulfate and evaporated under reduced pressure to give a crude pale yellow oil (5.30 g). The crude oil was purified by silica gel chromatography (20:1-1:2 hexane-ethyl acetate) to give 4-[7-(4-bromophenoxy)heptyl]-cis-2,6-dimethylmorpholine (4.43 g) as a pale yellow oil.

Workup

stirringstirred for 1 hour at 70° C
washthe mixture washed with water (50 ml×2) and brine
dry with materialThe separated organic layer was dried over magnesium sulfate
customevaporated under reduced pressure
customto give a crude pale yellow oil (5.30 g)
customThe crude oil was purified by silica gel chromatography (20:1-1:2 hexane-ethyl acetate)

Sources & evidence

ORD record: ord-d44120b8a8cc405b899b50a3bc2fb7da
Source dataset: uspto-grants-2005_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06884868B1

Reaction notes

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