Abstract:
[3 + 2] Cycloaddition of 1-arylmethylidene-3-oxopyrazolidin-1-ium-2-ides (stable azomethine imines) to (arylmethylidene)malononitriles proceeds regio- and stereoselectively to afford 1,3-diaryl-5-oxotetrahydropyrazolo[1,2-a]pyrazole-2-carbonitriles that proved resistant to azomethine imines metathesis.
Citation:
M. I. Pleshchev, N. V. Das Gupta, M. I. Struchkova, A. S. Goloveshkin, I. S. Bushmarinov, D. V. Khakimov, N. N. Makhova, “Regio- and stereoselective cycloaddition of stable azomethine imines to (arylmethylidene)malononitriles”, Mendeleev Commun., 25:3 (2015), 188–190
Linking options:
https://www.mathnet.ru/eng/mendc2345
https://www.mathnet.ru/eng/mendc/v25/i3/p188
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