Retro Diels Alder protocol for regioselective synthesis of novel [1,2,4]triazolo[4,3-a]pyrimidin-7(1H)-ones

Research Abstract
Reactions of diastereochemically varied norbornene-condensed 2-thioxopyrimidin-4-ones6and10with variously functionalized hydrazonoyl chlorides2a-hgave regioselectively angular norbornene-based [1,2,4]triazolo[4,3-a]pyrimidin-7(1H)-ones7a-hand11a,c-e, respectively. Thermal retro Diels-Alder (RDA) reaction of7a-hand11a,c-eresulted in the target compounds4a-has single products. On the other hand, reactions of thiouracil1and hydrozonoyl chlorides2a-egave regioselectively [1,2,4]triazolo[4,3-a]pyrimidinone-5(1H)-ones3a-e. The opposite regioselectivity of thiouracil1and norbornene-condensed 2-thioxopyrimidin-4-ones6and10was attributed to electronic factors according to DFT calculations. The angular structure of norbornene based [1,2,4]triazolo[4,3-a]pyrimidin-7(1H)-ones was confirmed by single crystal X-ray crystallography.
Research Authors
Said, A.I., Palko, M., Haukka, M., Fülöp, F.
Research Department
Department of chemistry
Research Journal
RSC Advances
Research Member
Awad Ibrahim Mohamed Said
Research Pages
33937-33943
Research Publisher
Royal society of Chemistry
Research Rank
1
Research Vol
Volume 10, Issue 56,
Research Website
https://pubs.rsc.org/en/Content/ArticleLanding/2020/RA/D0RA04345A#!divAbstract
Research Year
2020

Nitric oxide-mediated drought stress tolerance via improvement crop yield, antioxidants, membrane integrity and reducing the oxidative stress of two faba bean cultivars

Research Abstract
NULL
Research Authors
8. Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan (2019)
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Eman Salah Esmail Mostafa
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
1(2),1-11.
Research Website
NULL
Research Year
2018

Nitric oxide-mediated drought stress tolerance via improvement crop yield, antioxidants, membrane integrity and reducing the oxidative stress of two faba bean cultivars

Research Abstract
NULL
Research Authors
8. Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan (2019)
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Mona fathi Abd Elmowlaa Dawood
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
1(2),1-11.
Research Website
NULL
Research Year
2018

Nitric oxide-mediated drought stress tolerance via improvement crop yield, antioxidants, membrane integrity and reducing the oxidative stress of two faba bean cultivars

Research Abstract
NULL
Research Authors
8. Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan (2019)
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Mohamed Ali Ahmed Zidan
Research Pages
NULL
Research Publisher
NULL
Research Rank
1
Research Vol
1(2),1-11.
Research Website
NULL
Research Year
2018

integrity and reducing the oxidative stress of two
faba bean cultivars, (2019)

Research Abstract
NULL
Research Authors
Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Eman Salah Esmail Mostafa
Research Pages
1-11
Research Publisher
NULL
Research Rank
1
Research Vol
Vol. 1(2)
Research Website
NULL
Research Year
2018

Nitric oxide-mediated drought stresses tolerance via improvement crop yield, antioxidants, membrane integrity and reducing the oxidative stress of two faba bean cultivars. J. Multidiscip. Sci.1(2),1-11.

Research Abstract

NULL

Research Authors
Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Mona fathi Abd Elmowlaa Dawood
Research Pages
1-11
Research Publisher
NULL
Research Rank
1
Research Vol
Vol. 1(2)
Research Website
NULL
Research Year
2018

integrity and reducing the oxidative stress of two
faba bean cultivars, (2019)

Research Abstract
NULL
Research Authors
Nahla Dief, Eman Salah Esmail Aldaby, Mona Fathi Abd Elmowla Dawood, Mohammed Ali Ahmed Zidan
Research Department
Botany and Microbiology Department
Research Journal
Journal of Multidisciplinary Sciences
Research Member
Mohamed Ali Ahmed Zidan
Research Pages
1-11
Research Publisher
NULL
Research Rank
1
Research Vol
Vol. 1(2)
Research Website
NULL
Research Year
2018

Nitric Oxide Alleviated the Negative Impact of the Water Deficit and Hypoxia in three Crop Plants, (2019)

Research Abstract
NULL
Research Authors
Nahla Dief, Eman S. E. Aldaby, Mona F. A. Dawood and Mohamed A. Zidan
Research Department
Botany and Microbiology Department
Research Journal
Assiut Univ. J. of Botany and Microbiology
Research Member
Eman Salah Esmail Mostafa
Research Pages
pp5
Research Publisher
NULL
Research Rank
2
Research Vol
, 48 (1)
Research Website
NULL
Research Year
2018

Nitric Oxide Alleviated the Negative Impact of the Water Deficit and Hypoxia in three Crop Plants, (2019)

Research Abstract
NULL
Research Authors
Nahla Dief, Eman S. E. Aldaby, Mona F. A. Dawood and Mohamed A. Zidan
Research Department
Botany and Microbiology Department
Research Journal
Assiut Univ. J. of Botany and Microbiology
Research Member
Mohamed Ali Ahmed Zidan
Research Pages
pp5
Research Publisher
NULL
Research Rank
2
Research Vol
, 48 (1)
Research Website
NULL
Research Year
2018

Primary and Secondary Metabolites of Vicia faba Plants cultivated under the Interactive effect of Drought and Nitric oxide

Research Abstract
NULL
Research Authors
Mohamed Zidan Eman Aldaby, nahla diaf, mona dawood
Research Department
Botany and Microbiology Department
Research Journal
Egyptian Journal of Botany
Research Member
Eman Salah Esmail Mostafa
Research Pages
NULL
Research Publisher
NULL
Research Rank
2
Research Vol
NULL
Research Website
NULL
Research Year
2020
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