| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | methyl (E)-2-(anilinomethyl)-3-(2-methoxyphenyl)prop-2-enoate | 124957-57-9 | C18H19NO3 | 297.354 |
| —— | methyl (E)-2-((2-formylphenoxy)methyl)-3-(2-methoxyphenyl)acrylate | 1373930-69-8 | C19H18O5 | 326.349 |
| —— | methyl (E)-2-({2-[(E)-(hydroxyimino)methyl]phenoxy}methyl)-3-(2-methoxyphenyl)acrylate | 1373930-79-0 | C19H19NO5 | 341.364 |
Herein we describe a direct method, promoted by potassium tert-butoxide (KOtBu), for the synthesis of highly substituted α-methylene β-lactams and α-arylidene β-lactams from the amino ester intermediates derived from the acetates and bromo derivatives of the Baylis–Hillman adducts. A variety of β-lactams was synthesized in a single step with good yields.