Diisopropylethylamine → 1009368-28-8
Reaction equation
[OH:1][CH:2]1[CH2:5][N:4]([C:6]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])[CH2:3]1.CCN(C(C)C)C(C)C.[Cl:22][C:23](Cl)([O:25]C(=O)OC(Cl)(Cl)Cl)Cl>C1COCC1>[Cl:22][C:23]([O:1][CH:2]1[CH2:3][N:4]([C:6]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])[CH2:5]1)=[O:25]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
To a stirred solution of 3-hydroxy-1-Boc azetidine (21; 350 mg, 2.023 mmol) and DIPEA (1.3 ml, 7.080 mmol) in THF (5 ml) at 0° C. was slowly added triphosgene (898 mg, 3.034 mmol). The resulting mixture was stirred for 2 hr at RT. After completion of the reaction, the reaction mixture was filtered and washed with fresh THF to get rid of inorganic salts. The filtrate was concentrated under reduced pressure to get crude product 61 in 55% yield. The crude product, thus obtained, was immediately used for the next reaction.