Syntheses of heterocyclic compounds. Part XVIII. Aminolysis of 3-aryl-4-bromosydnones, and acid hydrolysis of 3-arylsydnoneimines
作者:G. S. Puranik、H. Suschitzky
DOI:10.1039/j39670001006
日期:——
various 3-aryl- and 3-heteroaryl-4-bromosydnones with piperidine gives the corresponding piperidino-glycyl-piperidines. Fluorine labelling has confirmed the postulated course of fission induced by acids in 3-aryl-sydnoneimines.
Reactions of anilines with ethyl bromoacetate under microwave irradiation have afforded N-arylglycines that are subsequently converted to their N-nitroso derivatives with a combination of silica chloride or periodic acid, wet SiO2 and sodium nitrite in CH2Cl2 with satisfactory yields. In the final step, the use of 1,3-dibromo-5,5-dimethylhydantoin (DBH) as a new and effective reagent for dehydration of N-nitroso-N-arylglycines to sydnones was successfully examined.
Mallur, Shanta G.; Tiwari; Raju, B. China, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2007, vol. 46, # 10, p. 1686 - 1689
作者:Mallur, Shanta G.、Tiwari、Raju, B. China、Babu, K. Suresh、Ali, A. Zehra、Sastry、Rao, J. Madhusudana
DOI:——
日期:——
118. The sydnones. A new class of compound containing two adjacent nitrogen atoms
作者:Ronald A. Eade、J. Campbell Earl
DOI:10.1039/jr9460000591
日期:——
SAIN, BIR;SANDHU, JAGIR S., CHEM. AND IND.,(1990) N1, C. 709