| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 4-叔丁基杯[6]芳烃 | 5,11,17,23,29,35-hexakis(tert-butyl)-37,38,39,40,41-hexakis(hydroxy)calix[6]arene | 78092-53-2 | C66H84O6 | 973.389 |
The “paco” or “alt” isomers of acetoxylcalixarenes were selectively prepared in the presence of catalytic amount (2 mol%) of Bi(OTf)3,. Calix[4]arenes selectively gave two different isomers under specified conditions with a good selectivity, but, calix[6]arenes and calix[8]arenes only gave the “alt” isomers with a high selectivity.