Stephen Clayton, C. Gabbutt, J. Hepworth
Jan 22, 1993
Citations
0
Influential Citations
24
Citations
Journal
Tetrahedron
Abstract
The synthesis of thiochroman-4-ones from thiophenols and 3-methylbut-2-enoic acid effected by methane sulphonic acid is accompanied by tert-butylation of the aromatic ring. 3-Arylthiobutanoic acids, available using β-butyrolactone, are efficiently cyclised in the same manner.