Synthetic Studies on Cyclocitrinol: Construction of the ABC Ring System Based on Epoxy–Nitrile Cyclization

Autor: Keiji Tanino, Kazuto Sato
Rok vydání: 2020
Předmět:
Zdroj: Synlett. 32:674-678
ISSN: 1437-2096
0936-5214
DOI: 10.1055/a-1334-6100
Popis: The stereoselective synthesis of a model compound containing the ABC ring system of cyclocitrinol was accomplished. After connecting a C ring allyltitanium segment with an A ring bi­cyclo[4.1.0]heptanone segment, the seven-membered B ring moiety was constructed by an intramolecular cyclization reaction of an epoxy nitrile. The enone moiety was introduced through an oxidative decyanation reaction, and the bicyclo[4.4.1]undecane skeleton with the highly strained olefin moiety was formed through a ring-opening reaction of the bicyclo[4.1.0]heptane substructure.
Databáze: OpenAIRE