Abstract
2,6-Dichlorocinnamic acid and its esters undergo photocyclization to yield 5-chlorocoumarin; the present evidence favours a mechanism involving the singlet excited state of the cis-isomer and an unstable ortho-quinomethylketen (4) as the precursor.
| Original language | English |
|---|---|
| Pages (from-to) | 14-15 |
| Number of pages | 2 |
| Journal | Chemical Communications |
| Issue number | 1 |
| DOIs | |
| State | Published - 1976 |
| Externally published | Yes |