1242029-75-9Relevant academic research and scientific papers
Visible light-induced palladium-catalyzed ring opening β-H elimination and addition of cyclobutanone oxime esters
Xing, Wei-Long,Shang, Rui,Wang, Guang-Zu,Fu, Yao
supporting information, p. 14291 - 14294 (2019/12/02)
A palladium catalyst under visible light irradiation activates cyclobutanone oxime ester through single electron transfer to induce radical ring opening to generate hybrid cyanoalkyl Pd(i) radical species. Hybrid cyanoalkyl Pd(i) radical species can undergo either β-H elimination to deliver (E)-4-arylbut-3-enenitrile or undergo radical addition with silyl enol ether and enamide to generate δ-cyano ketones. A dual ligand system composed of two phosphine ligands is essential for the high reactivity.
Catalytic and regioselective ring expansion of arylcyclobutanones with trimethylsilyldiazomethane. Ligand-dependent entry to β-ketosilane or enolsilane adducts
Dabrowski, Jennifer A.,Moebius, David C.,Wommack, Andrew J.,Kornahrens, Anne F.,Kingsbury, Jason S.
supporting information; experimental part, p. 3598 - 3601 (2010/11/04)
Divergent reactivity is uncovered in the homologation of arylcyclobutanones with trimethylsilyldiazomethane. With Sc(OTf)3 as catalyst, enolsilanes are obtained with a high preference for methylene migration. By contrast, Sc(hfac)3 g
