SEARCH Articles Figures Tables Activated methylene Activated methylene compounds Activating groups Active groups Active methyl Active methylene group Active methylene/methine compounds Group Activation Methine Methine compounds Methine group Methine/methylene/methyl Methine/methylene/methyl groups Methines Methyl and methylene groups, active Methyl compounds Methyl group Methyl groups active Methyl groups compounds Methylene compounds Methylene group Methylene groups, activated Methylenes, activated methylene