1309922-94-8Relevant articles and documents
Five-Membered 2,3-Dioxo Heterocycles: LXXV.* Reaction of Methyl 1-Aryl-3-aroyl-4,5-dioxo-4,5-dihydro- 1H-pyrrole-2-carboxylates with 1,3-Diphenylguanidine. Crystalline and Molecular Structure of 9-Benzoyl-8-hydroxy-2-imino-6-(4-methylphenyl)-1,3-diphenyl-1,3, 6-triazaspiro-[4.4]non-8-ene-4,7-dione
Bubnov,Denislamova,Aliev,Maslivets
experimental part, p. 523 - 526 (2011/07/29)
Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 1,3-diphenylguanidine to give the corresponding 6-aryl-9-aroyl-8-hydroxy-2-imino-1,3-diphenyl-1,3,6-triazaspiro[4.4]non-8-ene-4, 7-diones. The molecular and crystalline structures of 9-benzoyl-8-hydroxy-2- imino-6-(4-methylphenyl)-1,3-diphenyl-1,3,6-triazaspiro[4.4]non-8-ene-4,7-dione were determined by X-ray analysis. Pleiades Publishing, Ltd., 2011.