Refine
Has Fulltext
- yes (8)
Is part of the Bibliography
- yes (8)
Year of publication
- 1990 (8) (remove)
Document Type
- Journal article (8)
Keywords
- Organische Chemie (5)
- 1 (1)
- 3 (1)
- 4-0xadiazin-6-ones (1)
- 6-Thiatricyclo[3.2.1.o 2.7 ]oct-3-ene 6 (1)
- 6-dioxide (1)
- Barbaralane derivatives (1)
- Cyclopropanetetracarbonitrile derivatives (1)
- Diels-Alder reactions (1)
- Electron transfer (1)
Institute
No abstract available
No abstract available
No abstract available
No abstract available
The transient yellow color observed in the cycloaddition of homobenzvalene (HB) with tetracyanoethylene (TCNE) is associated with the charge-transfer complex [HB, TCNE). The deliberate photoexcitation of [HB,TCNE) affords a mixture of charge-transfer cycloadducts (1, 2, and 3) that differs from that obtained in thermal cycloaddition. The relationship of {HB t TCNE•) radical-ion pair (as the critical reactive intermediate in charge-transfer cycloaddition) to the activation process for thermal cycloaddition is discussed.