A Mild, Thermal Pentafulvene-to-Benzene Rearrangement
作者:Aaron D. Finke、Sophie Haberland、W. Bernd Schweizer、Peter Chen、François Diederich
DOI:10.1002/anie.201304767
日期:2013.9.9
Walk this way: More than 40 years after the discovery that fulvene can thermallyrearrange to benzene at high temperatures, it has been found that 6,6‐dicyanopentafulvenes can rearrange quantitatively to 1,3‐ and 1,4‐dicyanobenzenes under mild conditions in polar aprotic solvents. A polar “ring‐walk” mechanism is proposed to explain this unprecedented reactivity.
An organic electroluminescent device, which comprises: a pair of electrodes; and an organic compound layer including a light-emitting layer between the pair of electrodes, wherein the organic compound layer comprises a compound represented by formula (I):
wherein Z
1
, Z
2
, Z
3
and Z
4
each independently represents an atom selected from the group consisting of carbon, nitrogen, sulfur and oxygen and necessary for forming an unsaturated 6-membered ring skeleton, the atom may have a hydrogen atom or a substituent; a bond in the unsaturated 6-membered ring indicates a single bond or a double bond; and
R
1
represents a substituent.
6,6-Dicyanopentafulvenes: Teaching an Old Dog New Tricks
作者:Aaron D. Finke、François Diederich
DOI:10.1002/tcr.201402060
日期:2015.2
DCFs was exploited computationally for the first time. Shortly after the report of the first rational synthesis of DCFs, we discovered that DCFs had a vast and astonishing array of reactivities to form new molecular entities. Simple, catalyst-free reactions between DCF acceptors and electron-rich donors led to the formation of scaffolds of exceptional complexity. Furthermore, our discovery that DCFs are