γ-versusα-Substitution in dihydronaphthalene sulphonamides. A novel approach to (±)-Naproxen
Abstract
Alkylation of N-alkyl dihydronaphthalene-1-sulphonamides, derived by reduction with Li/liq. NH3, can be directed in certain cases to the naphthalene 3-position, depending mainly on the steric bulk of the N-alkyl group(s).