Abstract

1-Substituted 3,3-dimethylbenzo[ d]-1,3-azasilolines (III) were synthesized by intramolecular cyclization of the corresponding (3-chlorophenyl)(N-substituted aminomethyl)dimethylsilanes (II) by the use of phenyllithium. Reaction of III with benzyne generated from o-fluorobromobenzene and n-butyllithium gave 1-phenyl-2-substituted-3,3-dimethylbenzo[ d]-1,3-azasilolines (VIII).

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