Decarboxylative radical addition to vinylsulphones and vinylphosphonium bromide: Some further novel transformations of geminal (pyridine-2-thiyl) phenylsulphones.
摘要:
Irradiation of O-acyl derivatives 1 of N-hydroxy- 2-thiopyridone with visible light in the presence of phenyl vinyl sulphone or vinyl triphenylphosphonium bromide leads to the corresponding adducts 8 and 9 which can undergo a wide variety of further transformations.
Decarboxylative radical addition to vinylsulphones and vinylphosphonium bromide: Some further novel transformations of geminal (pyridine-2-thiyl) phenylsulphones.
摘要:
Irradiation of O-acyl derivatives 1 of N-hydroxy- 2-thiopyridone with visible light in the presence of phenyl vinyl sulphone or vinyl triphenylphosphonium bromide leads to the corresponding adducts 8 and 9 which can undergo a wide variety of further transformations.
Reduction of activated thiopyridyl compounds by zinc metal
作者:Jean Boivin、Jean-Yves Lallemand、Andreas Schmitt、Samir Z. Zard
DOI:10.1016/0040-4039(95)01497-6
日期:1995.10
Starting from thiopyridyl compounds bearing a radical stabilizing group in α-position to the thiopyridyl moiety, the thiopyridyl group can be easily removed upon reduction by zinc metal in acetic acid.
The role of organic tellurides as accumulators and exchangers of carbon radicals
作者:Derek H.R. Barton、Nubar Ozbalik、Jadab C. Sarma
DOI:10.1016/s0040-4039(00)82402-8
日期:1988.1
Primary carbon radicals, generated by photolysis of acyl derivatives of -hydroxy-2-thiopyridone, exchange efficiently on diisopropyl telluride to give isopropylradicals which can in turn be trapped by radicophilic olefins.