Synthesis of 4-Aminopyrimidines from 1,2,4-Oxadiazoles, II A General Method for the Preparation of 4-Substituted 6,7-Dihydro-9,10-dialkoxy-2H-pyrimidoisoquinolin-2-imine Hydrochlorides
5'-Substituted 1--3,4-dihydroisoquinolines (7) were reduced by NaBH4 selectively to give the corresponding tetrahydroisoquinolines (8) which underwent ring isomerization to pyrazoloisoquinolines (9).Catalytic hydrogena
Korbonits, Dezsoe,Kiss, Pal,Bata, Imre,Heja, Gergely,Simon, Kalman,Kolonits, Pal
p. 1039 - 1044
(2007/10/02)
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