A photochemical electrocyclization of the benzothiazolylphenylethenes involving a C-N bond formation
Language
en
Article de revue
This item was published in
Journal of Photochemistry and Photobiology A: Chemistry. 2008-05-20, vol. 196, n° 2-3, p. 239-245
Elsevier
English Abstract
A novel oxidative photodehydrocyclization of benzothiazolylphenylethenes to a polycyclic heteroaromatic cations with good yields was described. Starting from the trans-derivative, the phototransformation is a multistep ...Read more >
A novel oxidative photodehydrocyclization of benzothiazolylphenylethenes to a polycyclic heteroaromatic cations with good yields was described. Starting from the trans-derivative, the phototransformation is a multistep process. It includes two photochemical reactions, a trans-cis-isomerization reaction followed by an 1-aza-1,3,5-hexatrienic electrocyclic reaction involving the formation of CN bond. The cyclized product gives the stable heteroaromatic cations from hydride elimination with oxygen from air.Read less <
English Keywords
Electrocyclic reaction
Photocyclization
2-Styrybenzothiazoles
Crown ethers
Benzothiazolo[3
2-a]quinolines
Origin
Hal imported