New trifluoromethylated pyridines from functionalized<i>N</i><sup>1</sup>-acylacetamidrazones
作者:Maria Teresa Cocco、Cenzo Congiu、Valentina Onnis、Angela Maria Bernard、Pier Paolo Piras
DOI:10.1002/jhet.5570330637
日期:1996.11
Polyfunctionalized trifluoromethylpyridines 4, 5 were readily synthesized from trifluoroacetylvinyl ether 3, using N1-acylacetamidrazones 1,2 as starting material.
Reaction of<i>N</i><sup>1</sup>-acylacetamidrazones with trifluoroacetylvinyl ethers. Synthesis of new 4-trifluoromethyl- and 6-trifluoromethylpyridines
作者:Maria Teresa Cocco、Cenzo Congiu、Valentina Onnis、Angela Maria Bernard、Pier Paolo Piras
DOI:10.1002/jhet.5570340432
日期:1997.7
The reaction between N1-acylacetamidrazones 1 and enol ether 2 is described. Depending on the reaction conditions and on the substitution pattern of amidrazones 2-acylhydrazino-4-methyl-6-trifluoro-methylpyridines 3 and/or 2-acylhydrazino-6-methyl-4-trifluoromethylpyridines 4 were obtained.