TY - JOUR ID - 7547 TI - Part 2: SYNTHESIS AND REACTIONS OF SOME NEW IMIDAZO[4,5-C]PYRAZOLE AND PYRAZOLO[3,4-D]PYRIMIDINE DERIVATIVES JO - Al-Azhar Bulletin of Science JA - ABSB LA - en SN - 1110-2535 AU - KADAH, MONA S. AU - ABD EL-GHAFFAR, NAHED F. AU - RADWAN, AZZA M. AU - ABD EL-AL, SARA N. AU - SALMAN, ASMAA S. AD - Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt. Y1 - 2009 PY - 2009 VL - 20 IS - Issue 1-A SP - 102 EP - 111 KW - Pyrazoloimidazole KW - pyrazolopyrimidine KW - pyrazolone DO - 10.21608/absb.2009.7547 N2 - Reactions of 3-methyl-1-phenyl-4,6-dihydroimidazo[4,5-c]pyrazole-5(1H)-thione with carbonyl compounds gave the arylidene derivatives 2 and 3, with recinoleic acid, phosphorus oxychloride/phosphorus pentachloride mixture and copper bronze gave the adduct 4, the chloro derivative 5 and the dimer with desulfurization 7. The behaviour of the chloroderivative towards hydrazine and primary amines have also been studied. On the other, reaction of 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one with aromatic aldehydes gave the arylidene derivatives 8a-d, which on reaction with thiourea gave the pyrazolopyrimidinethione derivatives 9. The behaviour of compounds 9 towards copper bronze, sodium nitrite/acetic acid mixture, acrylonitrile and formaldehyde/ morpholine and its reaction with compound 1 in presence of copper bronze have also been taken into consideration. UR - https://absb.journals.ekb.eg/article_7547.html L1 - https://absb.journals.ekb.eg/article_7547_e136fc203aa3f9d88da8ec02c117330a.pdf ER -