| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | Octamethyltetraoxaquaterene | 22900-44-3 | C28H32O4 | 432.56 |
Three porphyrinogen-like compounds, or mixed quaterenes, have been synthesized. One quaterene contains a pyrrole and three furan residues while the others contain two pyrrole and two furan residues. The chief reaction in the preparation of these mixed quaterenes involves the condensation of a dimethylcarbino of furan at the α-position on a furan or pyrrole ring. Several previously unknown compounds of pyrrole and furan have been prepared as necessary intermediate.