SEARCH Articles Figures Tables 2- Alkyl-1,2-benzisothiazol-3 -thiones 2-Alkyl -thiones alkylation 2-Alkyl -thiones alkylation Benzimidazolin-2-thione, alkylation Thieno pyrimidin-2 -thione alkylation Thieno pyrimidine-4 -thione alkylation Thione alkyl aryl