Институт физико-органической химии и углехимии АН УССР
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт физико-органической химии и углехимии АН УССРfiledCriticalИнститут физико-органической химии и углехимии АН УССР
Priority to SU3840307/04ApriorityCriticalpatent/SU1262927A1/en
Application grantedgrantedCritical
Publication of SU1262927A1publicationCriticalpatent/SU1262927A1/en
FIELD: organic chemistry. SUBSTANCE: method involves cyclization reaction of 2,3-diamino-5-bromo-6-methylpyridine at boiling point of reaction mixture and at azeotropic water distillation off. Cyclization reaction is carried out in medium of n- or isoamylformate at molar ratio of 2,3-diamino-5-bromo-6-methylpyridine : n- (iso)-amylformate = = 1:(1.5-3). EFFECT: improved method of synthesis.
SU3840307/04A1985-01-091985-01-09Method of synthesis of 6-bromo-5-methylamidazo-[4,5-b]-pyridine
SU1262927A1
(en)
5-(n-carbobenzoxy)aminonaphthalene-1-sulfonate sodium as a semiproduct for synthesis of substituted 5-aminonaphthalene-1-sulfamides used as enzyme substrate detectable groups