Tetrahedron p. 939 - 946 (1993)
Update date:2022-07-31
Topics: Synthesis Reagent Reaction Activation Tert-Butylation Direct Aromatic Molecule Hydrogen atom
Clayton, Stephen E.
Gabbutt, Christopher D.
Hepworth, John D.
Mark Heron
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.
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Doi:10.1016/S0957-4166(00)00044-6
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(2005)Doi:10.1021/jo9918201
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(2000)Doi:10.1016/S0008-6215(00)84091-4
(1976)Doi:10.1002/hlca.19700530411
(1970)
