Sodium Azide → Propyl (7-azido-4-fluoro-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl)acetate

HRID 1944022Notes

Reaction equation

[F:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:10]=1[N:9]1[CH2:11][CH:12](OS(C)(=O)=O)[CH2:13][CH2:14][C:8]1=[C:7]2[CH2:20][C:21]([O:23][CH2:24][CH2:25][CH3:26])=[O:22].[N-:27]=[N+:28]=[N-:29].[Na+]>CN(C=O)C>[N:27]([CH:12]1[CH2:11][N:9]2[C:10]3[C:6]([C:7]([CH2:20][C:21]([O:23][CH2:24][CH2:25][CH3:26])=[O:22])=[C:8]2[CH2:14][CH2:13]1)=[CH:5][CH:4]=[CH:3][C:2]=3[F:1])=[N+:28]=[N-:29]

Participants

Conditions

Temperature: 60 °C

Procedure

To a stirred solution of propyl {4-fluoro-7-[(methylsulfonyl)oxy]-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl}acetate (1 eq) in DMF (0.15M) at 0° C. was added sodium azide (1.2 eq). The reaction mixture was stirred at 60° C. for 6 h. The reaction was quenched by addition of water and NH4Cl, extracted with EtOAc, washed with water, brine, dried and evaporated. The residue was purified by column chromatography on silica gel eluting with EtOAc/Hexanes (0 to 50%) to give the desired material as a yellow oil.

Workup

customThe reaction was quenched by addition of water and NH4Cl
extractionextracted with EtOAc
washwashed with water, brine
customdried
customevaporated
customThe residue was purified by column chromatography on silica gel eluting with EtOAc/Hexanes (0 to 50%)

Sources & evidence

ORD record: ord-d3e80184fdcd4a93a52ef8e7e3e447ac
Source dataset: uspto-grants-2013_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08394819B2

Reaction notes

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