THE FORMATION OF PYRAZOLO[1,5-A]PYRIMIDINES BY THE REACTION OF 3-(4-CHLOROPHENYL)PYRAZOL-5-AMINE WITH CHALCONES

被引:40
作者
QUIROGA, J
INSUASTY, B
RINCON, R
LARRAHONDO, M
HANOLD, N
MEIER, H
机构
[1] UNIV VALLE,DEPT CHEM,CALI,COLOMBIA
[2] UNIV MAINZ,INST ORGAN CHEM,D-55099 MAINZ,GERMANY
[3] UNIV DIST,DEPT CHEM,BOGOTA,COLOMBIA
关键词
D O I
10.1002/jhet.5570310606
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Cyclocondensation reactions of the pyrazol-5-amine 1 and the 1-aryl-3-phenyl-2-propen-1-ones 2a-d yield the 6,7-dihydropyrazolo[1,5-a]pyrimidines 7a-d. Whereas 7a-c can be isolated in pure state, 7d is subjected to a spontaneous oxidation.
引用
收藏
页码:1333 / 1335
页数:3
相关论文
共 19 条
[1]   SYNTHESEN STICKSTOFFHALTIGER HETEROCYCLEN .22. UBER DIE SYNTHESE EINIGER PYRAZOLO[3.4-B]PYRIDINE [J].
DORNOW, A ;
SIEBRECHT, M .
CHEMISCHE BERICHTE-RECUEIL, 1960, 93 (05) :1106-1110
[3]  
ELNAGDI MH, 1984, ADV HETEROCYCLIC CHE, V41, P319
[4]   STUDIES ON 1H-ALKYLPYRAZOLO AND 2H-N-ALKYLPYRAZOLO[3,4-D]PYRIDAZIN-4(5H)ONES [J].
GELIN, S ;
HARTMANN, D .
JOURNAL OF HETEROCYCLIC CHEMISTRY, 1978, 15 (05) :813-816
[5]   C-13 NMR-STUDY OF SOME AMINOPYRAZOLES - PROBLEM OF THE TAUTOMER EQUILIBRIUM-CONSTANTS DETERMINATION [J].
GONZALEZ, E ;
FAURE, R ;
VINCENT, EJ ;
ESPADA, M ;
ELGUERO, J .
ORGANIC MAGNETIC RESONANCE, 1979, 12 (10) :587-592
[6]  
GREENHILL JV, 1984, COMPREHENSIVE HETERO, V5, P305
[7]  
IMBACH JL, 1970, B SOC CHIM FR, P1929
[8]   THE REACTION OF AROMATIC ALPHA-BETA-UNSATURATED KETONES WITH 4,5-DIAMINO-1,6-DIHYDROPYRIMIDIN-6-ONES [J].
INSUASTY, B ;
RAMOS, M ;
QUIROGA, J ;
SANCHEZ, A ;
NOGUERAS, M ;
HANOLD, N ;
MEIER, H .
JOURNAL OF HETEROCYCLIC CHEMISTRY, 1994, 31 (01) :61-64
[9]   SYNTHESIS OF PYRIDO[3,2-D]PYRIMIDINES FROM 5-AMINOPYRIMIDINES [J].
IRWIN, WJ ;
WIBBERLE.DG .
JOURNAL OF THE CHEMICAL SOCIETY C-ORGANIC, 1967, (18) :1745-&
[10]  
Meier, 1992, REV COLOMB QUIM, V21, P29