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7547

Part 2: SYNTHESIS AND REACTIONS OF SOME NEW IMIDAZO[4,5-C]PYRAZOLE AND PYRAZOLO[3,4-D]PYRIMIDINE DERIVATIVES

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Last updated: 22 Jan 2023

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Chemistry

Abstract

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.

DOI

10.21608/absb.2009.7547

Keywords

Pyrazoloimidazole, pyrazolopyrimidine, pyrazolone

Authors

First Name

MONA

Last Name

KADAH

MiddleName

S.

Affiliation

Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt.

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First Name

NAHED

Last Name

ABD EL-GHAFFAR

MiddleName

F.

Affiliation

Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt.

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-

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-

Orcid

-

First Name

AZZA

Last Name

RADWAN

MiddleName

M.

Affiliation

Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt.

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-

City

-

Orcid

-

First Name

SARA

Last Name

ABD EL-AL

MiddleName

N.

Affiliation

Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt.

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-

City

-

Orcid

-

First Name

ASMAA

Last Name

SALMAN

MiddleName

S.

Affiliation

Chemistry Department, Faculty of Science (GIRLS), Al -Azhar University, Cairo, Egypt.

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Volume

20

Article Issue

Issue 1-A

Related Issue

1450

Issue Date

2009-06-01

Receive Date

2009-01-09

Publish Date

2009-06-01

Page Start

102

Page End

111

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 20_Issue Issue 1-A_Pages 102-111.pdf

PDF . 123.8kB

Link

https://absb.journals.ekb.eg/article_7547.html

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https://absb.journals.ekb.eg/service?article_code=7547

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Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

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Article

Created At

22 Jan 2023