Sodium Azide → (3aRS,4RS,6SR,7aSR)-6-azidomethyl-4-(2-methoxyphenyl)-2-[(2-methoxyphenyl)acetyl]perhydroisoindol-4-ol

HRID 1599156Notes

Reaction equation

[N-:1]=[N+:2]=[N-:3].[Na+].[CH3:5][O:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=1[C:13]1([OH:44])[CH2:21][CH:20]([CH2:22]S(C2C=CC(C)=CC=2)(=O)=O)[CH2:19][CH:18]2[CH:14]1[CH2:15][N:16]([C:33](=[O:43])[CH2:34][C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][C:36]=1[O:41][CH3:42])[CH2:17]2>CN(C)C=O.O>[N:1]([CH2:22][CH:20]1[CH2:19][CH:18]2[CH:14]([CH2:15][N:16]([C:33](=[O:43])[CH2:34][C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][C:36]=3[O:41][CH3:42])[CH2:17]2)[C:13]([C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[O:6][CH3:5])([OH:44])[CH2:21]1)=[N+:2]=[N-:3]

Participants

Conditions

Temperature: 50 °C

Procedure

0.35 g of sodium azide is added to a solution of 2.03 g of (3aRS,4RS,6SR,7aSR)-4-(2-methoxyphenyl)-2-[(2-methoxyphenyl)acetyl]-6-tosylmethylperhydroisoindol-4-ol in 10 cm3 of dimethylformamide. The reaction mixture is heated at 50° C. for 8 hours and stirred at 20° C. for 48 hours and then diluted with 150 cm3 of water and subjected to extraction twice with 40 cm3 of ethyl acetate. The organic phase is washed with 50 cm3 of water, dried over magnesium sulphate and then concentrated to dryness under reduced pressure (2.7 kPa). 1.6 g of (3aRS,4RS,6SR,7aSR)-6-azidomethyl-4-(2-methoxyphenyl)-2-[(2-methoxyphenyl)acetyl]perhydroisoindol-4-ol are obtained in the form of a thick white foam.

Workup

extractionsubjected to extraction twice with 40 cm3 of ethyl acetate
washThe organic phase is washed with 50 cm3 of water
dry with materialdried over magnesium sulphate
concentrationconcentrated to dryness under reduced pressure (2.7 kPa)

Sources & evidence

ORD record: ord-c1a950fb6ba94e648caed20f953e4756
Source dataset: uspto-grants-1998_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05739351

Reaction notes

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