Application of electron spin resonance spectroscopy to studies of valence isomerization. V. Aliphatic semidiones. XXVIII. Formation of bicyclo[3.2.0]hept-2-ene-6,7-semidiones from bicyclo[3.2.0] and -[2.2.1]precursors
Application of electron spin resonance spectroscopy to studies of valence isomerization. V. Aliphatic semidiones. XXVIII. Formation of bicyclo[3.2.0]hept-2-ene-6,7-semidiones from bicyclo[3.2.0] and -[2.2.1]precursors