SEARCH Articles Figures Tables 1,3-Oxazinium ions/salts 1,3-Oxazinium ions/salts reactions 1,3-Oxazinium salts, 5,6-dihydro- from 1.3- Oxazinium salts, 4-hydroxy-, reaction 4//-l,3-Oxazinium salts 5.6- Dihydro-4//-l,3-oxazinium salts 5.6- Dihydro-4/7-1,3-oxazinium salts Oxazinium (3-Azapyrylium) Salts Salts 1,3-Oxazinium and 3-Azapyrylium