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8996

SYNTHESIS AND REACTIONS OF SOME PYRIDINE AND THIENO [2,3-b] PYRIDINE DERIVATIVES WITH EXPECTED BIOLOGICAL ACTIVITY

Article

Last updated: 22 Jan 2023

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Tags

Chemistry

Abstract

     A synthesis of pyridine-2(1H)-thione derivative 2 and thieno-[2,3-b] -pyridine derivatives 4,5 utilizing cyanothioacetamide and arylhydrazone of benzoylacetone 1 as starting compounds is described. Pyridinethione derivative 6 reacted with aromatic aldehyde to give styrylpyridinethione derivative 7. Compound 7 was reacted with chloroacetone to obtain thienopyridine derivative 8. Cycloaddition reaction was carried out on 8 with dienophiles, to afford the corresponding cycloadduct 9.Pyridinethione derivative 6 reacted with halogen-containing materials to give the corresponding thienopyridine derivatives 10, 17. the reaction of 10 with triethyl orthoformate or formic acid led to the formation of pyridothienopyrimdine derivative 11. The hydrazino derivative 13, gave with triethyl orthoformate triazolo-pyrimidothienopyridine derivative 14. Compound 10 reacted with nitrous acid to gave pyridothienotrizinone derivative 15. Thienopyridine derivative 17 reacted with triethyl orthoformate to give 18. Triazipinopyrimidothienopyridine derivative 20 obtained from compound 18 after reaction with hydrazine hydrate and acetylacetone. Compound 17 reacted with carbon disulfide to give pyrimidinedithione derivative 21.

DOI

10.21608/absb.2008.8996

Keywords

Pyridine, THIENO [2,3-b] PYRIDINE, Biological Activity

Authors

First Name

A.

Last Name

HASSAN

MiddleName

Y.

Affiliation

Chemistry Department, Faculty of Science (Girl's), Al-Azhar University, Nasr City, Cairo, Egypt

Email

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City

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Orcid

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First Name

F.

Last Name

FAYZ

MiddleName

M.

Affiliation

Chemistry Department, Girl's College of Education, Saudi Arabia, Riyadh

Email

-

City

-

Orcid

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Volume

19

Article Issue

Issue 1-A

Related Issue

1639

Issue Date

2008-06-01

Receive Date

2008-02-19

Publish Date

2008-06-01

Page Start

67

Page End

90

Print ISSN

1110-2535

Online ISSN

2636-3305

Link

https://absb.journals.ekb.eg/article_8996.html

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https://absb.journals.ekb.eg/service?article_code=8996

Order

5

Type

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