The preparation of 4-(2,6-diamino-4H-thiopyran-3,5-dicarbonitrile) derivatives of sydnone and sydnone imines based on the ternary condensation of 4-formyl sydnones and sydnone imines with malononitrile and 2-cyanothioacetamide is reported.
4-lithiosydnone imines: Generation and stability. Plant growth regulating activity of 4-hydroxymethyl derivatives of sydnone imines
作者:Ilya A. Cherepanov、Ekaterina V. Shevaldina、Dmitry A. Lapshin、Yury Ya. Spiridonov、Vladimir A. Abubikerov、Sergey K. Moiseev
DOI:10.1016/j.jorganchem.2021.121841
日期:2021.6
investigated and an efficiency of subsequent reactions of the generated C(4)-lithio derivatives with electrophiles was shown to depend on the exploited deprotonating reagent. It was found that 4-(α-arylhydroxymethyl)sydnone imines, when used for pre-sowing treatment of corn seeds at very low doses (0.25-5 g t−1), promoted a plantgrowth up to 60%.
作者:Ilya A. Cherepanov、Evgeny D. Savin、Natal’ya G. Frolova、Maria O. Shishkova、Ivan A. Godovikov、Kyrill Yu. Suponitsky、Konstantin A. Lyssenko、Valery N. Kalinin
DOI:10.1016/j.mencom.2009.11.008
日期:2009.11
The preparation of 4-(2,6-diamino-4H-thiopyran-3,5-dicarbonitrile) derivatives of sydnone and sydnone imines based on the ternary condensation of 4-formyl sydnones and sydnone imines with malononitrile and 2-cyanothioacetamide is reported.
4-Formylsydnonimine derivatives
作者:I. A. Cherepanov、L. H. Kusaeva、I. A. Godovikov、V. N. Kalinin
DOI:10.1007/s11172-009-0346-2
日期:2009.12
The procedure for the synthesis of 4-formylsydnonimine derivatives based on the reaction of 4-lithiosydnonimines with (methoxymethylidene)dimethylammonium methyl sulfate was proposed.