Studies on tellurium-containing heterocycles. Part 12.1 2-Substituted 1-benzotelluropyrylium salts: synthesis and reactions with nucleophiles
作者:Haruki Sashida、Hiroshi Minamida
DOI:10.1039/a902180i
日期:——
The general preparation of 2-substituted 1-benzotelluropyrylium salts 3 from the tellurochromen-4-ones 1 in two steps is outlined. The sensitive stability to the nature of the substituents at the C-2 position and the reactions with several nucleophiles including OMe–, diethylamine, CN–, an active methyl compound (acetone) and PhCH2MgBr, and also hydrogenation and hydrolysis reactions are described