Astha
Gupta, 
§a
Mohammad Ovais
Dar,
§ac
Tejender
Singh,
a
Gurudutt
Dubey,
a
Subash C.
Sahoo
b
and
Prasad V.
Bharatam
*a
§a
Mohammad Ovais
Dar,
§ac
Tejender
Singh,
a
Gurudutt
Dubey,
a
Subash C.
Sahoo
b
and
Prasad V.
Bharatam
*a
Abstract
The pyrrolyl cation is a 4π electron ring system which is anti-aromatic and unstable. This work reports an experimental procedure to obtain stable pyrrolyl cations. Electron donation from N-heterocyclic carbenes makes the ring stable by converting a 4π electron ring system into a 6π electron ring system.
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