SEARCH Articles Figures Tables 2- -1,3-alkanedioate 3-alkoxycarbonyl-3-aza-1,5-alkanedioate haloalkane carboxylic acid 3-alkoxycarbonyl-3-aza-1,5-alkanedioate haloalkane naphthalene-2-carboxylic acid 4- alken-4-olide 1,4-alkanedioic acid anhydride Alkanedioates —