Scope and limitation of the [1,2]-phenylsulfanyl (PhS) migration in the asymmetric synthesis of tetrahydrofurans and tetrahydropyrans from common triol precursors
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作者:
House, D
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机构:Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
House, D
Kerr, F
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机构:Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
Kerr, F
Warren, S
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机构:Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
Warren, S
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[1] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England
[2] AstraZeneca R&D Sodertalje, Proc R&D, S-15185 Sodertalje, Sweden
Triols containing three secondary hydroxy groups were reacted with either (i) toluene p-sulfonic acid or (ii) trimethylorthoacetate-pyridinium toluene p-sulfonate followed by toluene p-sulfonic acid.