A CONVENIENT AND EFFICIENT SYNTHESIS OF CONDENSED 1,3-DIPHENYLPYRAZOLES : SYNTHESIS OF SOME NEW PYRANOPYRAZOLE , PYRAZOLOPYRANOPYRIMIDINE AND PYRA-ZOLOPYRANOTRIAZOLOPYRIMIDINE DERIVATIVES | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 1, Volume 20, Issue 2-A, December 2009, Page 1-21 PDF (187.72 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2009.7650 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| Abstract: Several heterocyclic systems such as pyrano[2,3-c]pyrazole, pyrazolo[4,3:5,6] pyrano[2,3-d]pyrimidine and pyrazolo [4,3:5,6]pyrano-[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine derivatives were obtained from the reaction of 1,3-diphenylpyrazole with 4-fluorobenzylidinemalo-nonitrile to give pyrano[2,3-c]pyrazole(1)as starting material. | ||||
| Keywords | ||||
| pyrazolone; arylidene; enaminonitrile; aminoimino; pyrano-pyrazole | ||||
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