Dimetalation of isopropenylacetylene. Application in the synthesis of 3-methylselenophen, 3-methylene-2,3-dihydroselenophen and the tellurium analogues
Dimetalation of isopropenylacetylene. Application in the synthesis of 3-methylselenophen, 3-methylene-2,3-dihydroselenophen and the tellurium analogues