Iminodibenyl → methyl 3-(10,11-dihydro-5H-dibenz[b,f]azepin-5-ylmethyl)benzoate

HRID 249161

Reaction equation

[CH:1]1[C:11]2[CH2:10][CH2:9][C:8]3[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=3[NH:6][C:5]=2[CH:4]=[CH:3][CH:2]=1.CC(C)([O-])C.[K+].Cl[CH2:23][C:24]1[CH:25]=[C:26]([CH:31]=[CH:32][CH:33]=1)[C:27]([O:29][CH3:30])=[O:28]>O1CCCC1>[CH:1]1[C:11]2[CH2:10][CH2:9][C:8]3[CH:12]=[CH:13][CH:14]=[CH:15][C:7]=3[N:6]([CH2:23][C:24]3[CH:25]=[C:26]([CH:31]=[CH:32][CH:33]=3)[C:27]([O:29][CH3:30])=[O:28])[C:5]=2[CH:4]=[CH:3][CH:2]=1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 10,11-dihydro-5H-dibenz[b,f]azepine (2.44 g) in tetrahydrofuran (25 ml) was added potassium tert-butoxide (2.02 g) at 0° C. The mixture was stirred at 0° C. for 15 minutes, and then a solution of methyl 3-(chloromethyl)benzoate (3.57 g) in tetrahydrofuran (15 ml) was added. The mixture was stirred at 25° C. for 1 hour, and then evaporated. The residue was partitioned between ethyl acetate and 0.1N hydrochloric acid. The organic layer was washed with water and brine, dried over magnesium sulfate, and evaporated. The residue was chromatographed on silica gel eluting with a mixture of hexane and ethyl acetate (40:1) to give methyl 3-(10,11-dihydro-5H-dibenz[b,f]azepin-5-ylmethyl)benzoate (1.10 g) as an oil.

Workup

stirringThe mixture was stirred at 25° C. for 1 hour
customevaporated
customThe residue was partitioned between ethyl acetate and 0.1N hydrochloric acid
washThe organic layer was washed with water and brine
dry with materialdried over magnesium sulfate
customevaporated
customThe residue was chromatographed on silica gel eluting with a mixture of hexane and ethyl acetate (40:1)

Sources & evidence

ORD record: ord-5a0392a55da541ecb4f9f07138614fca
Source dataset: uspto-grants-1993_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05212320

Linked notes

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