Table 1. Synthesis of Tetramic Acid Triflates.
| yields
(%) |
||||||
|---|---|---|---|---|---|---|
| Ar3 | 8 | 9 | 10 | 11 | 12 | 13 |
| b Ar3 = 4-methoxyphenyl | 80 | 87 | 79 | 72 | 90 | – |
| c Ar3 = 3-methoxyphenyl | 77 | 87 | 60 | 30 | 98 | 60 |
| d Ar3 = 3,4-dimethoxyphenyl | 75 | 81 | 65 | 64 | 84 | – |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.