138151-72-1Relevant academic research and scientific papers
A photochemical ring expansion of 6-to 8-membered nitrogen heterocycles by [1,3]-sigmatropic rearrangement
Manning, Morgan A.,Sun, Wei,Light, Mark E.,Harrowven, David C.
, p. 4556 - 4559 (2021)
A new route to azocines and benzoazocines from furopyridinones is described through a photochemically induced [1,3]-sigmatropic rearrangement. The method gives access to these 8-membered nitrogen heterocycles from dimethyl squarate in four stages and with excellent atom economy by sequencing thermal and photochemical ring expansion steps under continuous flow.
A synthesis of highly substituted aromatics through regiocontrolled construction of cyclobutenones bearing unsaturated substituents at the 4-position
Krysan, Damian J.,Gurski, Angela,Liebeskind, Lanny S.
, p. 1412 - 1418 (2007/10/02)
2,3-Substituted 4-chloro-2-cyclobutenones, prepared by regiospecific transformations of substituted cyclobutenediones, undergo palladium-catalyzed cross-coupling with vinyl- and arylstannanes and vinylzirconium reagents to form 4-Runsat-2-cyclo
