作者:Stephen E. Clayton、Christopher D. Gabbutt、John D. Hepworth、B.Mark Heron
DOI:10.1016/s0040-4020(01)80335-5
日期:1993.1
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 beta-butyrolactone, are efficiently cyclised in the same manner.