Craig, Donald published the artcileSulfone-mediated synthesis of polysubstituted pyridines, Quality Control of 142896-15-9, the main research area is bisallylation alkyl tolylsulfonylacetate; pyridinecarboxylic ester preparation; ozonolysis ammonolysis bisallylated tolylacetic ester.
Base-mediated and/or palladium(0)-catalyzed bis(allylation) of alkyl 2-(tolylsulfonyl)acetates gives 1,6-dienes, which upon ozonolytic cleavage of the double bonds and ammonolysis give 2,6-disubstituted pyridine-4-carboxylic esters. Decarboxylation of one of the 1,6-diene intermediates followed by deprotonation-alkylation and ozonolysis-ammonolysis gives a 2,4,6-trisubstituted pyridine.
Tetrahedron Letters published new progress about Allylation. 142896-15-9 belongs to class esters-buliding-blocks, name is Methyl 2,6-dimethylisonicotinate, and the molecular formula is C9H11NO2, Quality Control of 142896-15-9.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics