Reactions with Hydrazonoyl Halides. 31. Synthesis of Some New Pyrrolidino[3,4-c]pyrazolines, Pyrazoles, and Pyrazolo[3,4-d]pyridazines

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Molecules 2000, 5(7), 967-973; doi:10.3390/50700967

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Reactions with Hydrazonoyl Halides. 31. Synthesis of Some New Pyrrolidino[3,4-c]pyrazolines, Pyrazoles, and Pyrazolo[3,4-d]pyridazines

Abdou O. Abdelhamid^1,* , Hussien F. Zohdi², Mohamed M. M. Sallam¹ and Nagla A. Ahmed¹

¹ Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt ² Department of Chemistry, United Arab Emirates University, Al-Ain 17551, UAE

* Author to whom correspondence should be addressed.

Received: 29 May 2000; in revised form: 6 July 2000 / Accepted: 6 June 2000 / Published: 21 June 2000

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Abstract: Pyrrolidino[3,4-c]pyrazoline and pyrazole derivatives were synthesized via reactions of a substituted hydrazonoyl bromide with N-arylmaleimides and active methylene reagents, respectively. Synthesized pyrazoles were reacted with hydrazine hydrate to give the corresponding pyrazolo[3,4-d]pyridazines.

Keywords: hydrazonoyl halides; N-arylmaleimides; pyrrolidino[3; 4-c]pyrazolines; pyrazoles; pyrazolo[3; 4-d]pyridazines

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MDPI and ACS Style

Abdelhamid, A.O.; Zohdi, H.F.; Sallam, M.M.M.; Ahmed, N.A. Reactions with Hydrazonoyl Halides. 31. Synthesis of Some New Pyrrolidino[3,4-c]pyrazolines, Pyrazoles, and Pyrazolo[3,4-d]pyridazines. Molecules 2000, 5, 967-973.

AMA Style

Abdelhamid A.O., Zohdi H.F., Sallam M.M.M., Ahmed N.A. Reactions with Hydrazonoyl Halides. 31. Synthesis of Some New Pyrrolidino[3,4-c]pyrazolines, Pyrazoles, and Pyrazolo[3,4-d]pyridazines. Molecules. 2000; 5(7):967-973.

Chicago/Turabian Style

Abdelhamid, Abdou O.; Zohdi, Hussien F.; Sallam, Mohamed M.M.; Ahmed, Nagla A. 2000. "Reactions with Hydrazonoyl Halides. 31. Synthesis of Some New Pyrrolidino[3,4-c]pyrazolines, Pyrazoles, and Pyrazolo[3,4-d]pyridazines." Molecules 5, no. 7: 967-973.

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