the synthesis of natural and unnatural substituted maleicanhydrides based on the Barton radical decarboxylation is described. The radicals, generated by the photolysis of N-hydroxy-2-thiopyridone esters derived from succinic and alkyl acids reacted, respectively, with electron deficient olefin phenyl maleimide by a consecutive two-step radical addition, afforded the corresponding disubstituted maleic
Barton, Derek H. R.; Chern, Ching-Yuh; Jaszberenyi, Joseph Cs., Australian Journal of Chemistry, 1995, vol. 48, # 2, p. 407 - 426
作者:Barton, Derek H. R.、Chern, Ching-Yuh、Jaszberenyi, Joseph Cs.
DOI:——
日期:——
The invention of radical reactions. Part XIX. The synthesis of very hindered quinones
作者:Derek H.R. Barton、Wojciech Sas
DOI:10.1016/s0040-4020(01)81512-x
日期:1990.1
Two carbon homologation of carboxylic acids via carbon radicals generated from the acyl derivatives of N-hydroxy-2-thiopyridone: Synthesis of Cn+2 α-keto-acids from Cn acids. (The ‘three carbon’ problem).
Reaction of olefins containing a three carbon atom chain with carbon radicals generated from carboxylic acids furnishes adducts that are precursors of the corresponding two carbon atom longer alpha-keto-acids. The keto-acids are furnishes in high overall yield.
Poigny, Stephane; Guyot, Michele; Samadi, Mohammad, Journal of the Chemical Society. Perkin transactions I, 1997, # 15, p. 2175 - 2177
作者:Poigny, Stephane、Guyot, Michele、Samadi, Mohammad