• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Editorial Staff
    • Publication Ethics
    • Indexing and Abstracting
    • Related Links
    • FAQ
    • Peer Review Process
    • News
  • Guide for Authors
  • Submit Manuscript
  • Reviewers
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Journal of Sciences, Islamic Republic of Iran
Articles in Press
Current Issue
Journal Archive
Volume Volume 30 (2019)
Volume Volume 29 (2018)
Volume Volume 28 (2017)
Volume Volume 27 (2016)
Issue Issue 4
Autumn 2016, Page 301-400
Issue Issue 3
Summer 2016, Page 201-300
Issue Issue 2
Spring 2016, Page 201-300
Issue Issue 1
Winter 2016, Page 1-100
Volume Volume 26 (2015)
Volume Volume 25 (2014)
Volume Volume 24 (2013)
Volume Volume 23 (2012)
Volume Volume 22 (2011)
Volume Volume 21 (2010)
Volume Volume 20 (2009)
Volume Volume 19 (2008)
Volume Volume 18 (2007)
Volume Volume 17 (2006)
Volume Volume 16 (2005)
Volume Volume 15 (2004)
Volume Volume 14 (2003)
Volume Volume 13 (2002)
Volume Volume 12 (2001)
Volume Volume 11 (2000)
Volume Volume 10 (1999)
Volume Volume 9 (1998)
Volume Volume 8 (1997)
Volume Volume 7 (1996)
Volume Volume 6 (1995)
Volume Volume 5 (1994)
Volume Volume 4 (1993)
Volume Volume 3 (1992)
Volume Volume 2 (1991)
Volume Volume 1 (1990)
Volume Volume 1 (1989)
Rezayati, S., Mehmannavaz, M., Salehi, E., Haghi, S., Hajinasiri, R., Afshari Sharif Abad, S. (2016). Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature. Journal of Sciences, Islamic Republic of Iran, 27(1), 51-63.
S. Rezayati; M. Mehmannavaz; E. Salehi; Sh. Haghi; R. Hajinasiri; S. Afshari Sharif Abad. "Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature". Journal of Sciences, Islamic Republic of Iran, 27, 1, 2016, 51-63.
Rezayati, S., Mehmannavaz, M., Salehi, E., Haghi, S., Hajinasiri, R., Afshari Sharif Abad, S. (2016). 'Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature', Journal of Sciences, Islamic Republic of Iran, 27(1), pp. 51-63.
Rezayati, S., Mehmannavaz, M., Salehi, E., Haghi, S., Hajinasiri, R., Afshari Sharif Abad, S. Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature. Journal of Sciences, Islamic Republic of Iran, 2016; 27(1): 51-63.

Phospho Sulfonic Acid Catalyzed Synthesis of Benzimidazole, Benzoxazole and Quinoxaline Derivatives under Green Solvent at Ambient Temperature

Article 5, Volume 27, Issue 1, Winter 2016, Page 51-63  XML PDF (739.99 K)
Document Type: Final File
Authors
S. Rezayati* 1; M. Mehmannavaz1; E. Salehi2; Sh. Haghi1; R. Hajinasiri3; S. Afshari Sharif Abad3
11 Department of Chemistry, Payame Noor University, PO BOX19395-469 Tehran, Islamic Republic of Iran
22 Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Islamic Republic of Iran
33 Chemistry Department, Qaemshahr Branch, Islamic Azad University, POBOX 163, Qaemshahr, Islamic Rpublic of Iran
Abstract
Phospho sulfonic acid (PSA) synthesized as an environmentally safe and efficient solid acid catalyst, and it used for the synthesis of several 2-disubstituted benzimidazoles, 2-substituted benzoxazoles, and 2-substituted quinoxalines in ethanol as a green solvent at ambient temperature is described. (i) A very simple, green and efficient procedure for the synthesis of benzimidazole and also benzoxazole derivatives comprising the reaction of corresponding ortho-phenylenediamine or ortho-aminophenol with various aromatic aldehydes in absolute ethanol at ambient temperature is described. (ii) The direct condensation of various 1,2-diamines and carbonyl compounds in absolute ethanol at ambient temperature has been described to the synthesis of quinoxaline derivatives as biologically interesting compounds. Additionally, PSA is reused repeatedly for six reaction cycles without any evidence loss of activity. This green procedure offers significant advantages in terms of its simplicity, reusable strategy for the efficient synthesis of benzimidazole derivatives, the elimination of corrosive liquid acids, short reaction time, high product yields, and simple preparation of the catalyst.
Keywords
Benzimidazoles; Benzoxazoles; Quinoxalines; Phospho sulfonic acid; Brønsted acid
Statistics
Article View: 1,472
PDF Download: 1,797
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

 

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Journal Management System. Designed by sinaweb.