The Photoreversible Addition of Sulfur Dioxide to Benzobenzvalene: A new Approach to the Benzoprefulvene Biradical
…, C Gmünder, S Schmidlin, G Bernardinelli
Index: Burger, Ulrich; Gmuender, Christian; Schmidlin, Serge; Bernardinelli, Gerald Helvetica Chimica Acta, 1990 , vol. 73, # 6 p. 1724 - 1729
Full Text: HTML
Citation Number: 4
Abstract
Abstract Benzobenzvalene (naphthvalene; 1) is shown to add SO 2 to a lateral bicyclobutane bond with formation of a sulfone 2 and a 'γ-sultine'3. The structure of the latter is unambiguously established by X-ray diffraction. Both adducts extrude SO 2 upon direct photolysis at 254 nm and regenerate 1 accompanied by naphthalene in a 1: 3 ratio. This result is interpreted in terms of a reversible homolytic cleavage leading, for both, 2 and 3, ...
Related Articles:
[Kjell,D.P.; Sheridan,R.S. Journal of the American Chemical Society, 1986 , vol. 108, p. 4111]
[Kjell,D.P.; Sheridan,R.S. Journal of the American Chemical Society, 1986 , vol. 108, p. 4111]
[Kjell,D.P.; Sheridan,R.S. Journal of the American Chemical Society, 1986 , vol. 108, p. 4111]
[Kjell,D.P.; Sheridan,R.S. Journal of the American Chemical Society, 1986 , vol. 108, p. 4111]
[Burger, Ulrich; Schmidlin, Serge P.; Mareda, Jiri Phosphorus, Sulfur and Silicon and the Related Elements, 1993 , vol. 74, # 1-4 p. 417 - 418]