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Communication | Regular issue | Vol 26, No. 1, 1987, pp.39-42
Published online, 1st January, 1970
DOI: 10.3987/R-1987-01-0039
Intramolecular Cyclisation Using Methyl(bismethilthio)sulphonium Salts. Part 5. Synthesis of Functionalized 4,5-Dihydro-3,1-benzoxazepines

Giuseppe Capozzi, Rosaria Ottana‘, and Giovanni Romeo

*CNR, Centro di Studio Sulla Chimica e la Struttura dei Composti Eterociclici e lolo Applicazioni, c/o Dipartimento di Chimica Organica "Ugo Schiff", Università di Firenze, Via Gino Capponi 9, I-50121 Firenze, Italy


The reaction of methyl (bismethylthio) sulphonium herachloroantimonate 1 with N-( 2-allylphenyl) benzamide 2 gives the 4-methylthiomethyl-4,5-dihydro-3,1-benzoxazepine 4. Other electrophilic reagents reacts with 2 to give exclusively or preferentially products of addition to the allytic double bond.