Reversible DI-π-methane rearrangements of bicyclic organosilicon compounds

JD Rich, TJ Drahnak, R West, J Michl

Index: Rich, Jonathan D.; Drahnak, Timothy J.; West, Robert Journal of Organometallic Chemistry, 1981 , vol. 212, # 1 p. C1 - C3

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Citation Number: 14

Abstract

Abstract The photochemistry of 5, 6-benzo-2, 2, 3, 3-tetramethyl (2, 3-disilabicyclo [2.2. 2.] octa-5, 7-diene)(I) has been investigated. Unlike thermolysis of I, which produces tetramethyldisilene as intermediate, irradiation at 10 K in an argon matrix or 77 K in a 3- methylpentane glass led to a di-π-methane photorearrangement to give 3, 4-benzo-6, 7- disila-6, 6, 7, 7-tetramethylbicyclo [3.3. 0.0 2, 8]. octane. Photolysis of I at room ...