Some Reactions of 2-Mercapto-3,5,7-tripheny1pyrido[2,3-d]pyri1nidine-
4(3H)-one. Synthesis of Pyridotriazolo and Pyridotetrazolopyrimidine
Derivatives. .

Research Abstract
NULL
Research Authors
M.S.K. Youssef, M.F. El-Zohary, Kh.M. Hassan and
R.A. El-Wafa.
Research Department
Department of chemistry
Research Journal
Phosphorus. Sulfur and Silicon,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,197-201
Research Publisher
NULL
Research Rank
1
Research Vol
,44
Research Website
NULL
Research Year
1989

Electronic Spectroscopic Studies of Some 3-Methy1-5-pyrazo1one
Derivatives.

Research Abstract
NULL
Research Authors
A.S. El-Shahawy, M.M. Kandeel and M.S.K. Youssef.
Research Department
Department of chemistry
Research Journal
Z. Phys. Chemie-Lepizig ,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,1047-1055
Research Publisher
NULL
Research Rank
1
Research Vol
271(5),
Research Website
NULL
Research Year
1990

Behaviour of Benzenesulphonyloxy- and N-Acetoxy-2,3-quinoxalin-
dicarboximidies Towards Some Nucleophiles.

Research Abstract
NULL
Research Authors
M.S.-K. Youssef and M.S. Abbady.
Research Department
Department of chemistry
Research Journal
Hererocycles ,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,1671-1678
Research Publisher
NULL
Research Rank
1
Research Vol
45(9),
Research Website
NULL
Research Year
1997

Synthesis of Some New Fused Heterocyclic Ring Systems Related to 6-
Amino-1,4-dihydro-3-methyl-1-phenyl-4-thioxothiopyrano[4,3-c]pyrazole-7-carbonetrile.

Research Abstract
NULL
Research Authors
M.M. Kandeel, R.A. Ahmed and M.S.K. Youssef.
Research Department
Department of chemistry
Research Journal
Heterocycles,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,1121-1133
Research Publisher
NULL
Research Rank
1
Research Vol
57(6),
Research Website
NULL
Research Year
2002

Synthesis and Some Reactions of 2-Amino-6-(3-methyl-1-phenyl-5-oxo-2-
pyrazolin-4-yl)-4-phenylpyridine-3-carbonitrile.

Research Abstract
NULL
Research Authors
R.A. Ahmed, M.M. Kandeel, M.S. Abbady and M.S.K. Youssef.
Research Department
Department of chemistry
Research Journal
J. Heterocycl. Chem. ,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,309-314
Research Publisher
NULL
Research Rank
1
Research Vol
39(3-4),
Research Website
NULL
Research Year
2002

Some Reactions of 3-Methyl-5-oxo-1-phenyl-∆2-pyrazoline-4-dithiocarbohydrazide.

Research Abstract
NULL
Research Authors
M.M. Kandeel, M.S. Abbady and M.S.K. Youssef.
Research Department
Department of chemistry
Research Journal
Bull. Korean Chem. Soc.,
Research Member
Mohamed Salah Kamel Youssef
Research Pages
,41-47
Research Publisher
NULL
Research Rank
1
Research Vol
23(1),
Research Website
NULL
Research Year
2002

Synthesis of a New Diels-Alder Quinone Adduct and Its Use
in Preparing Thiazolo- and Oxazoloquinolines

Research Abstract
Syn (or anti) cinnamaldehydeoxime (1a, b) undergoes Diels-Alder addition to tetrabromo-p-benzoquinone (2) in dry xylene in 1 : 1 and 2 : 1 molar ratios to give the mono- and diadducts 3 and 4a, b respectively. The reaction of 3 with thioamides in ethanol gave thiazoloquinoline diones 6a-d, whereas with acid amides in ethylene glycol, it gave oxazoloquinolinediones 12a-f.
Research Authors
A. S. Hammam, M. S. K. Youssef,* Sh. M. Radwan, and M. A. Abdel-Rahman
Research Department
Department of chemistry
Research Journal
Bull. Korean Chem. Soc. ,
Research Member
Mona Ahmed Abdel Rahman Ali
Research Pages
, 779-785
Research Publisher
NULL
Research Rank
1
Research Vol
25(6),
Research Website
NULL
Research Year
2004

Synthesis of a New Diels-Alder Quinone Adduct and Its Use
in Preparing Thiazolo- and Oxazoloquinolines

Research Abstract
Syn (or anti) cinnamaldehydeoxime (1a, b) undergoes Diels-Alder addition to tetrabromo-p-benzoquinone (2) in dry xylene in 1 : 1 and 2 : 1 molar ratios to give the mono- and diadducts 3 and 4a, b respectively. The reaction of 3 with thioamides in ethanol gave thiazoloquinoline diones 6a-d, whereas with acid amides in ethylene glycol, it gave oxazoloquinolinediones 12a-f.
Research Authors
A. S. Hammam, M. S. K. Youssef,* Sh. M. Radwan, and M. A. Abdel-Rahman
Research Department
Department of chemistry
Research Journal
Bull. Korean Chem. Soc. ,
Research Member
Ahmed Thabet Ahmed hammam
Research Pages
, 779-785
Research Publisher
NULL
Research Rank
1
Research Vol
25(6),
Research Website
NULL
Research Year
2004
Subscribe to