Pyrimidine reactions. Part XVII. Ring fission of 1,2-dihydro-2-imino-1-methyl-, 5-methylsulphonyl-, and 5-methylsulphinyl-pyrimidine by amines
作者:D. J. Brown、P. W. Ford、M. N. Paddon-Row
DOI:10.1039/j39680001452
日期:——
by a tertiary amine (triethylamine) but in a secondary amine (pure diethylamine) it undergoes Dimroth rearrangement to 2-methylaminopyrimidine. In a primary amine (butylamine but not aniline) it suffers ringfission to give 1,3-dibutyliminopropane, which is shown to exist in an intramolecularly hydrogen-bonded form; in hydrazine hydrate it is converted into pyrazole. 5-Methylsulphonyl- and 5-methyl
Ring transformations of heterocycles with nucleophiles. 33. Cycloadditions of 5-nitropyrimidines with ynamines. Formation of 3-nitropyridines, N-5-pyrimidyl-.alpha.-carbamoylnitrones, and 2,2a-dihydroazeto[2,3-d]-3,5-diazocines
作者:A. T. M. Marcelis、H. C. Van der Plas
DOI:10.1021/jo00351a012
日期:1986.1
MARCELIS, A. T. M.;VAN, DER PLAS H. C., TETRAHEDRON, 45,(1989) N, C. 2693-2702
作者:MARCELIS, A. T. M.、VAN, DER PLAS H. C.
DOI:——
日期:——
MARCELIS, A. T. M.;VAN, DER, PLAS, H. C., J. ORG. CHEM., 1986, 51, N 1, 67-71