Abstract
The iminium salt Bn2N+=CH2 SnCl5
- undergoesene reactions with inverse electron demand with alkynes and withthe triple
bond of enynes to give benzylideneammonium ions in aprotic solvents.Their hydrolysis
yields N-benzylallylaminesin good yields. Mannich reaction products, which are the main productsunder
more nucleophilic reaction conditions, have not been detected.
Key words
electrophilic additions - ene reactions - enynes - pericyclic reactions
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