T. Hirose et al., MANIFESTATION OF A (DISTORTED) TRIGONAL PYRAMIDAL STRUCTURE OF A QUADRIVALENT CARBON, Tetrahedron letters, 38(26), 1997, pp. 4575-4578
Reactions of ap- and sp-rotamers of 1-(9-fluorenyl)-2-(1-methylethenyl
)naphthalene with m-chloroperoxybenzoic acid afforded the correspondin
g epoxides. Of these, the ap-epoxide was found to contain a carbon ato
m, the structure of which is a distorted trigonal pyramid, the carbon
atom being located close to the center of the base triangle. (C) 1997
Elsevier Science Ltd.