Tetrahedron p. 2733 - 2740 (1987)
Update date:2022-07-30
Topics:
Barton, Derek H. R.
Bridon, Dominique
Fernandez-Picot, Isabel
Zard, Samir Z.
Esters (mixed anhydrides) derived from aliphatic or alicyclic carboxylic acids (RCO2H) and thiohydroxamic acids 2 or 3 undergo a thermally or photochemically induced radical chain reaction to give sulphides 4 with loss of carbon dioxide.On irradiation at low temperature however, the chain reaction is essentially suppressed.Under these conditions moderate to good yields of dimers R-R are obtained from primary acids.The mechanistic and synthetic implications of these observations are discussed.
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