1-Alkyl-5-(alkylaminocarbonyl)-4,6-dimethyl-2-pyridones were obtained in high yields from the self-condensation of N -alkyl-3-oxobutanamides in the presence of p -toluenesulfonic acid as a catalyst at 100-110°C for 11-24 hours without solvent.
1997organo-selenium compounds, nonmetal heterocycles organo-selenium compounds, nonmetal heterocycles S 0137
-215Efficient Synthesis of Selenocarbonyl Compounds by Treating Carbonyl Compounds with Bis(1,5-cyclooctanediylboryl) Selenide.-An efficient method to obtain seleno-compounds such as (III), (VI), ( XII), and (XIII) using the title stable reagent, whose preparation is described, is presented. -(SHIMADA, K.; JIN, N.; KAWAGUCHI, M.; DOBASHI, K.; NAGANO, Y.; FUJIMURA, M.; KUDOH, E.; KAI, T.; SAITO, N.; MASUDA, J.; IWAYA, M.; FUJISAWA, H.; AOYAGI, S.; TAKIKAWA, Y.; Bull. Chem.
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