Simple Stereoselective Synthesis of Ebur
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Friederike Klatte; Dipl.-Chem. Ulrich Rosentreter; Prof. Dr. Ekkehard Winterfeld
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Article
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1977
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John Wiley and Sons
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English
⚖ 182 KB
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=c = C k 1 . (128) (a): R' = R2 = C sH5 ( b ) : R' = R2 = Fluorenylidene ( C ) : R' = H, R2 = CsH5 ever, such a pseudorotation is extremely difficult for steric reasons. Compounds ( I 2 A ) are therefore remarkably stable. When heated dry to above its melting point (I 2a) undergoes 96% conversion i