An improved procedure for the Michael reaction of chalcones

A Garcia-Raso, J Garcia-Raso, B Campaner…

Index: Garcia-Raso, A.; Garcia-Raso, J; Campaner, B.; Mestres, R.; Sinisterra, J. V. Synthesis, 1982 , # 12 p. 1037 - 1041

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Citation Number: 78

Abstract

'Compounds 1 and 2: 25 mmol each; catalyst: 50 mg.** ljsing piperidine as base." The microanalyses of the recrystallized (ethanol) new compounds" Yield not stated. showed the following maximum deviations from the calculated val-'When the reaction is carried out at reflux temperature the Michael “B51 C. i040; H,-_l-0.17; N, 10.04; Cl,+ 0.12. adduct (3) is obtained in poor yield due to a retro-Claisen reac-Using NaOH as base. tion.