Cascade Cleavage of Three-Membered Rings in the Reaction of D–A Cyclopropanes with 4,5-Diazaspiro[2.4]hept-4-enes: A Route to Highly Functionalized Pyrazolines

A new cascade process for reactions of donor–acceptor cyclopropanes (DACs) with spiro­[cyclo­propane­pyrazolines] in the presence of EtAlCl2 or Ga halides is reported. The action of a Lewis acid results in DAC activation and addition of the carbocationic intermediate to the azocyclopropane system of...

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Veröffentlicht in:	Journal of organic chemistry 2018-08, Vol.83 (15), p.7836-7851
Hauptverfasser:	Novikov, Roman A, Borisov, Denis D, Zotova, Maria A, Denisov, Dmitry A, Tkachev, Yaroslav V, Korolev, Victor A, Shulishov, Evgeny V, Tomilov, Yury V
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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