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- [8] HETEROCYCLES BY CYCLOADDITION .9. BRIDGED HETEROANNULENES BY CYCLOADDITION EXTRUSION RING-EXPANSION REACTIONS OF MESOIONIC COMPOUNDS WITH BENZOCYCLOPROPENE - A METHANOTHIAZONINE, A METHANOTHIONINE, AND A METHANOTHIECINONE JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1990, (07): : 2035 - 2040
- [9] MESOIONIC SIX-MEMBERED HETEROCYCLES .16. SYNTHESIS OF 2A,5A-DIAZA-ACENAPHTHYLENE MESOIONIC COMPOUNDS MONATSHEFTE FUR CHEMIE, 1983, 114 (8-9): : 965 - 972