Synthesis of Tricylic Compounds with Thiopyridone Rings

Research Abstract
Reaction of 3,4-trimethylene-6-amino-5-ethoxycarbonylthiopyrane-2-thione (1) with hydrazine hydrate gave the corresponding o-diaminocyclopentapyridine-2-thione (2). Ring closure of 2 with some reagents, namely, formic acid, aromatic aldehydes, carbon disulphide. phenacyl bromide, ethyl chloroformate, ethyl chloroacetate, nitrosylsulfuric acid, and pyruvic acid gave tricyclic compounds (2-14) by direct or indirect pathways, respectively.
Research Authors
Kh.M. Hassan, G.M. El-Naggar, A.M. El-Khawaga and A.M. Kamal El-Dean
Research Department
Department of chemistry
Research Journal
2nd Ibn Sina Symposium 8-11 November, 1988, St. Catherine Sinai, Egypt & Phosphorus, Sulfur, and Silicon and the Related Elements,
Research Member
Khairy Mohamed Hasan Abdel galeel
Research Pages
pp. 261 - 267
Research Rank
1
Research Vol
Vol. 45, No. 3,4
Research Year
1989

Synthesis of Tricylic Compounds with Thiopyridone Rings

Research Abstract
Reaction of 3,4-trimethylene-6-amino-5-ethoxycarbonylthiopyrane-2-thione (1) with hydrazine hydrate gave the corresponding o-diaminocyclopentapyridine-2-thione (2). Ring closure of 2 with some reagents, namely, formic acid, aromatic aldehydes, carbon disulphide. phenacyl bromide, ethyl chloroformate, ethyl chloroacetate, nitrosylsulfuric acid, and pyruvic acid gave tricyclic compounds (2-14) by direct or indirect pathways, respectively.
Research Authors
Kh.M. Hassan, G.M. El-Naggar, A.M. El-Khawaga and A.M. Kamal El-Dean
Research Department
Department of chemistry
Research Journal
2nd Ibn Sina Symposium 8-11 November, 1988, St. Catherine Sinai, Egypt & Phosphorus, Sulfur, and Silicon and the Related Elements,
Research Member
Galal Mostafa ahmed Mousa El-nagar
Research Pages
pp. 261 - 267
Research Rank
1
Research Vol
Vol. 45, No. 3,4
Research Year
1989

Spectrophotometric determination of norepinephrine with sodium iodate and determination of its acidity constants

Research Authors
E.Y. Hashem and A.K. Youssef
Research Department
Department of chemistry
Research Journal
Journal of Applied Spectroscopy
Research Member
Elham Yassin Mohamed Hashem
Research Pages
266-272
Research Rank
1
Research Vol
Vol. 80 , No.2
Research Year
2013
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