| Novel photoreactions of an insecticidal nitromethylene heterocycle. |
| As mentioned in the introductory section, the nitrogen heterocycle pyrrole occurs in bone oil, in which it is formed by the decomposition of proteins upon strong heating. |
| The light-induced homolytical nitrogen-oxygen bond cleavage yields a radical cation of the aromatic heterocycle and an alkoxy radical. |
| Many other furan derivatives occur naturally, including vitamin C. The structures of furfural and vitamin C are: The sulfur heterocycle thiophene and related compounds are found in coal tar and crude petroleum. |
| Nicknamed arylmethylidene heterocycle, the formula aspires to be a neuropathic pain reducer someday. |
| Initially our efforts concentrated on the two allyl side chains attached to the heterocycle via a methylene group. |
