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Communication | Special issue | Vol 11, No. 1, 1978, pp.165-170
Published online, 1st January, 1970
DOI: 10.3987/S(N)-1978-01-0165
Semidione Derivatives of Silacycloalkenes

Glen A. Russell,* C. E. Osuch, and W. Chau

*Department of Chemistry, Iowa State University, Ames, Iowa 50011, U.S.A.


The structures of 1 (X=CH2) and 2 (X= Si(CH3)2) have been studied by esr spectroscopy from -30 to +100 °C. Ring inversion can be observed for the cis semidiones 2 (n=2,3) and 1 (n=3), but not for 1 with n=2. Trans semidiones are observed for 2 (n=3-5) and 1 (n=4-6), but not for 1 with n=3.