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Paper | Regular issue | Vol 26, No. 12, 1987, pp.3123-3133
Published online, 1st January, 1970
DOI: 10.3987/R-1987-12-3123
A New Route for the Synthesis of 6-Substitutes Imidazo[4-5,c]-1,2,6-thiadiazine 2,2-Dioxides: Nmr Study and Crystal Structure of a Complex with Dimethylformamide

Angela Herrero, Carmen Ochoa, Juan Antonio Páez, Martín Martínez-Ripoll, Concepción Foces-Foces, and Félix Hernadez Cano

*Instituto de Química Médica, C. S. I. C., Calle Juan de Cierva, 3, 28006 Madrid, Spain


The synthesis of.6-substituted imidazo[4,5-c]-1,2,6-thiadiazine 2,2-dioxides from 3,4,5-triamino-1,2,6-thiadiazine 1,1-dioxide and aldehydes is described. 1H- and 13C-nmr studies of the synthesized compounds have been carried out. The crystal structure of the complex formed by the 6-(p-methoxyphenyl) derivative and dimethylformamide has been studied. The imidazothiadiazine ring has an envelope conformation in a packing by hydrogen interactions.