76063-86-0Relevant articles and documents
HETEROCYCLIC DERIVATIVES OF PURINES. 3. SYNTHESIS AND MASS SPECTROMETRIC STUDY OF IMIDAZOPURINE
Priimenko, B. A.,Garmash, S. N.,Romanenko, N. I.,Klyuev, N. A.,Sheinkman, A. K.
, p. 877 - 881 (1980)
A mixture containing 65percent 1-methyl-2-phenyl-5,7-dichloro- and 35percent 1-methyl-2-phenyl-3,5,7-trichloroimidazopurine (the percentages of the components were established by means of chromatographic mass-spectrometric analysis) was obtained by refluxing 1,8-dimethyl-2-phenylimidazoxanthine in POCl3 in the presence of excess PCl5.Reduction of this mixture with concentrated HCl in the presence of red phosphorus leads to 1-methyl-2-phenylimidazopurine, while heating with piperidine gives a mixture consisting of 55percent 1-methyl-2-phenyl-6-piperidino-8-chloroimidazopurine and 45percent 1-methyl-2-phenyl-3,8-dichloro-6-piperidinoimidazopurine.The IR, PMR, and mass spectra of the compounds obtained are discussed.