87362-60-5Relevant articles and documents
THE NORRISH TYPE II PHOTOREACTION OF BENZOYLVALERATES. STEREOCHEMICAL CONTROL IN 1,4-BIRADICAL CYCLIZATION
Hasegawa, Tadashi,Arata, Yoshiaki,Kageyama, Akihiko
, p. 1995 - 1996 (1983)
The δ- and β-oxoester 1 and 5 underwent the Type II photoreaction to give the stereoisomeric cyclobutanol 2 and 6, respectively; the ethoxycarbonyl group in the esters determines the stereochemistry of 1,4-biradical cyclization.