ISSN:
0009-2940
Keywords:
Dithienylethylene
;
Cyclodimerization
;
Photoinduced electron transfer
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
1,1-Di-2-thienylethanol (1) undergoes light-induced (Δ 〉 400 nm) dehydration to afford 1,1-di-2-thienylethylene (2). Compound 2 is selectively converted into 1,6-cyclodimers under thermal or photochemical conditions. In these latter case the non-aromatic Diels-Alder adduct 3 can be characterized. An ET mechanism involving a methyldithienylcarbenium ion (9) as electron acceptor and a chain mechanism is proposed to account for the products.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19911240537