139909-12-9Relevant academic research and scientific papers
Polar and steric substituent effects in 5-exo-trig cyclizations of 1-aryl-4-penten-1-oxyl radicals
Hartung, Jens,Hiller, Margit,Schmidt, Philipp
, p. 1425 - 1436 (2007/10/03)
A series of 1-aryl-substituted 4-penten-1-oxyl radicals 2 were generated from parent N-alkoxypyridinethiones 6. The intermediates 2 undergo 5-exo-trig cyclizations which are sensitive to polar and steric substituent effects. Thus, para groups in the aroma
