Studies with Condensed Thiophenes: Reactivity of Condensed Aminothiophenes toward Carbon and Nitrogen Electrophiles-Reference-Cited by-同舟云学术

Studies with Condensed Thiophenes: Reactivity of Condensed Aminothiophenes toward Carbon and Nitrogen Electrophiles

Published:2005-01 Issue:1 Volume:2005 Page:23-26
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Al-Saleh Balkis¹,Abdelkhalik Mervat M.²,El-Apasery Morsy A.¹,Elnagdi Mohamed H.³

Affiliation:

1. Department of Chemistry, Faculty of Science, University of Kuwait, P. O. Box 5969, 13060 Safat, Kuwait

2. Department of Chemistry, Girls College for Arts, Science and Education, Ain Shams University, P. O. Box 11757 Heliopolis, Cairo, A. R., Egypt

3. Department of Chemistry, Faculty of Science, Cairo University, Giza, A.R. Egypt

Abstract

The condensed aminothiophenes 5–7a,b react with 1,4-naphthoquinone in refluxing ethanol to yield products of addition followed by hydrogen sulfide elimination in a Diels–Alder type reaction. When the reaction is carried out under microwave irradiation a dipolar addition occurred affording products of substitution at C-l. Compounds 5–7a,b coupled with aromatic diazonium salts to yield arylazo derivatives 15 and 16 where coupling occurred at C-1. The condensed aminothiophenes 5–7a,b reacted with dimethylformamide dimethylacetal to yield amidines 17–19.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/0308234053431103

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