Tetrahedron p. 7083 - 7090 (1992)
Update date:2022-08-05
Topics:
Barton
Samadi
Treatment of the readily available di-N-oxide - of 2-thiopyridine disulfide 6 with tributylphosphine in the presence of a carboxylic acid provides a convenient and high yielding synthesis of the acyl derivatives 2 of N-hydroxy-2-thio-pyridone. Application of this procedure to the acids 17 and 18 gave, after irradiation in the presence of t-butylthill, the desired decarboxylated derivatives in high (>90%) yield.
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