E-viri
Recenzirano
-
Lyapunov, Alexander Yu; Tarnovskiy, Andriy V.; Osokina, Mariia H.; Shishkina, Svitlana V.; Lega, Dmitry A.; Grabchuk, Galyna P.; Volochnyuk, Dmitriy M.; Ryabukhin, Sergey V.
Chemistry of heterocyclic compounds (New York, N.Y. 1965), 07/2023, Letnik: 59, Številka: 6-7Journal Article
The interaction employing sulfamide and enolizable ketones was closely inspected in Biginelli reaction. The three-component variation of the reaction ''sulfamide + ketone + anisaldehyde'' and ''sulfamide + ketone + N , N -diethylacetoacetamide'' featured a lack of selectivity and provided a mixture of possible condensation products. Selectivity was improved when ketones were used in the reaction both as carbonyl and enol components. It was shown that trimethylsilyl chloride promoted interaction of sulfamide with ketones to afford 1,2,6- thiadiazines. Limitations were noted and unpredictable outcomes of the reaction were discussed as well.
