Photolysis and thermal decay of the sulfur dioxide adducts of benzobenzvalene

U Burger, SP Schmidlin, J Mareda

文献索引：Burger, Ulrich; Schmidlin, Serge P.; Mareda, Jiri Phosphorus, Sulfur and Silicon and the Related Elements, 1993 , vol. 74, # 1-4 p. 417 - 418

全文：HTML全文

被引用次数: 1

摘要

Abstract Benzobenzvalene 1 is shown to add SO2 with formation of a strained sulfone 2 and an isomeric γ-sultine 3. Photochemically (254 nm) the two adducts interconvert. Moreover, SO2 is extruded during the irradiation of 2 or 3 with regeneration of 1 and formation of naphthalene. This result is interpreted in terms of a reversible homolytic cleavage leading to an intermediate sulfinyloxy biradical 5 and subsequent formation of the benzoprefulvene ...