Abstract
Electronic oxidative bisdecarboxylation of photoadducts of 2,5-dihalo-1,2-dihydrophthalic anhydride and anthracene gave the corresponding energy-rich heterodimers 12 and 13. The quantum yields of the formation of the excited anthracene from 12 and 13 by the irradiation of 280-nm light were 0.65 and 0.25, respectively. We assumed that the heterodimers of 12 and 13 form biradicaloid intermediates during thermal retro [4πs + 4πs] cycloaddition and consumed their stored energy without any visible light. However, we observed emission light from 340 to 460 nm through a glass filter and the formation of anthracene using Nd-YAG laser IR light (1.06 μm) by the multiphoton absorption, when fine powders of 12 and 13 were used.
Original language | English |
---|---|
Pages (from-to) | 3908-3911 |
Number of pages | 4 |
Journal | Journal of Organic Chemistry |
Volume | 53 |
Issue number | 17 |
DOIs | |
Publication status | Published - Aug 1 1988 |
ASJC Scopus subject areas
- Organic Chemistry