Synthesis and transformations of substituted 4,6-dimethylpyrazolo[3,4-b]pyridyl-3-azides and -sulfonyl chlorides
摘要:
Diazotization of the amino group of 3-amino-4,6-dimethylpyrazolo[3,4-b]pyrimidines and subsequent replacement of the diazo group in the formed diazonium chlorides by an azide group gave the corresponding 3-azido derivatives. Their reactions with active methylene compounds have been studied. Substitution of the diazo group by a sulfo group gave the related 4,6-dimethylpyrazolo-[3,4-b]pyridyl-3-sulfonyl chlorides and sulfonylamides.
KAMAL, EL-DEAN A. M.;ATALLA, A. A.;SOHANWO, TH. A.;GEIIE, A. A., Z. NATURFORSCH. B., 46,(1991) N, C. 541-546
作者:KAMAL, EL-DEAN A. M.、ATALLA, A. A.、SOHANWO, TH. A.、GEIIE, A. A.
DOI:——
日期:——
El-Dean, A. M. Kamal; Atalla, A. A.; Mohamed, Th. A., Zeitschrift fur Naturforschung, B: Chemical Sciences, 1991, vol. <b> 46, # 4, p. 541 - 546
作者:El-Dean, A. M. Kamal、Atalla, A. A.、Mohamed, Th. A.、Geies, A. A.
DOI:——
日期:——
Synthesis and transformations of substituted 4,6-dimethylpyrazolo[3,4-b]pyridyl-3-azides and -sulfonyl chlorides
作者:I. G. Dmitrieva、L. V. Dyadyuchenko、V. D. Strelkov、E. A. Kaigorodova
DOI:10.1007/s10593-009-0169-y
日期:2008.10
Diazotization of the amino group of 3-amino-4,6-dimethylpyrazolo[3,4-b]pyrimidines and subsequent replacement of the diazo group in the formed diazonium chlorides by an azide group gave the corresponding 3-azido derivatives. Their reactions with active methylene compounds have been studied. Substitution of the diazo group by a sulfo group gave the related 4,6-dimethylpyrazolo-[3,4-b]pyridyl-3-sulfonyl chlorides and sulfonylamides.