Construction of Seven-Membered Carbocycles via Cyclopropanols
摘要:
A new method for seven-membered ring annulation has been devised by an intramolecular cross-coupling of cyclopropanols and aryl/alkenyl halides. This cyclization reaction is broad in scope and provides easy access to not only fused but also bridged bicyclic compounds.
Silberioneninduzierte Reaktion von 3-Chlor-2-pyrrolidinocyclohexen mit 1,3-Dienen. Vorläufige Mitteilung
作者:Rudolf Schmid、Hans Schmid
DOI:10.1002/hlca.19740570642
日期:——
3-Chloro-2-pyrrolidinocyclohexene (3) in the presence of silver tetrafluoroborate in methylene chloride at −60° underwent cycloadditions with various 1,3-dienes; the resulting iminium tetrafluoroborate salts 4a–8a were hydrolysed to give the bicyclic and tricyclic ketones 4b–8b. The addition reactions can be regarded as [3+4]-cycloadditions of an intermediate 2-aminoallyl cation.
A Simple Synthesis of Bicyclo[4.n.1]enones by Cyclodialkylation
作者:W. Clark STILL
DOI:10.1055/s-1976-24077
日期:——
Construction of Seven-Membered Carbocycles via Cyclopropanols
作者:Sridhar Ydhyam、Jin Kun Cha
DOI:10.1021/acs.orglett.5b02978
日期:2015.12.4
A new method for seven-membered ring annulation has been devised by an intramolecular cross-coupling of cyclopropanols and aryl/alkenyl halides. This cyclization reaction is broad in scope and provides easy access to not only fused but also bridged bicyclic compounds.