The reduction of elemental selenium by samarium diiodide led to selective formation of selenolate anion species (Se~(2-)_2 and Se~(2-)), these nucleophilic spec
The reactions of 5,10,15,20-tetrakis(p-hydroxyphenyl) porphyrin 1 and 5-(p-hydroxy-phenyl)-10,15,20-tris(p-methoxyphenyl) porphyrin 2 with 1-bromo -2,3,4,6-O-ac