Amberlyst-A21 as a New and Efficient Surface Catalyst for the Conjugate Addition of Nitroalkanes to Methyl Acrylate: An Improved Synthesis of Methyl 4-Nitro- and 4-Oxo-alkanoates
Aliphatic nitro compounds are easily halogenated by N-chloro or N-bromosuccinimide in protic solvents to give the practically pure gem-halonitro compounds.
Amberlyst-A21 as a New and Efficient Surface Catalyst for the Conjugate Addition of Nitroalkanes to Methyl Acrylate: An Improved Synthesis of Methyl 4-Nitro- and 4-Oxo-alkanoates
作者:Roberto Ballini、Marino Petrini、Goffredo Rosini
DOI:10.1055/s-1987-28054
日期:——
Utilization of Amberlyst-A21 without solvent in the conjugate addition of nitroalkenes to methyl acrylate, affords 4-nitroalkanoic methyl esters in good yields. Successive Nef reaction, using potassium permanganate, provides functionalized 4-oxoalkanoic methyl esters.