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Synthesis of new chiral pyrylium salts, the corresponding phosphinine and pyridine derivatives and the kinetic studies of the epimerization of pyrylium salts.

Van der Velde, Nelson A.Baylor University.2013

… as precursors to many heteroaromatic systems, chiral pyrylium salts are almost unknown in the literature. One reason for this scarcity is that pyrylium salts are often involved as intermediates rather than as isolated and characterized materials. Another is that many pyrylium salts preparations …

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