中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
N-苄氧羰基-D-缬氨酸 | N-[(benzyloxy)carbonyl]-D-valine | 1685-33-2 | C13H17NO4 | 251.282 |
—— | (R)-3-methyl-1-oxobutane-2-benzylcarbamate | 138754-84-4 | C13H17NO3 | 235.283 |
—— | Benzyl 2,5-dioxo-4-propan-2-yl-1,3-oxazolidine-3-carboxylate | 394210-42-5 | C14H15NO5 | 277.277 |
We describe a mild and efficient method for the chemoselective N-benzyloxycarbonylation of amines by treatment of amines and aminoesters with benzyloxycarbonyl chloride (Cbz-Cl) in the presence of TBAB under solvent-free conditions in excellent yields. The method is general for the preparation of a wide variety of N-Cbz derivatives of aliphatic, aromatic amines, and aminoesters.