scholarly journals A model compound for pyridinechalcone-based multistate systems. Ring opening-closure as the slowest kinetic step of the multistate

2019 ◽  
Vol 43 (46) ◽  
pp. 18229-18239 ◽  
Author(s):  
Ambrósio Camuenho ◽  
A. Jorge Parola ◽  
Alfonso Alejo-Armijo ◽  
Ramesh Pandian ◽  
Clara S. B. Gomes ◽  
...  
Keyword(s):  
Biological Activity ◽  
Ring Opening ◽  
Model Compound ◽  
Potential Biological Activity ◽  
Multistate Systems ◽  
New Type

Amino-substituted pyridinechalcones configure multistate systems where a new type of flavylium derivative with potential biological activity are present.

scholarly journals A New Type of Synthesis of 1,2,3-Thiadiazole and 1,2,3-Diazaphosphole Derivatives Via-Hurd-Mori Cyclization

2012 ◽  
Vol 9 (3) ◽  
pp. 1276-1287 ◽  
Author(s):  
Mona A. Hosny ◽  
Taghreed H. El-Sayed ◽  
Emtithal El-Sawi
Keyword(s):  
Biological Activity ◽  
Large Scale ◽  
High Potential ◽  
Efficient Synthesis ◽  
Anticancer Effect ◽  
Potential Biological Activity ◽  
Large Scale Preparation ◽  
New Type ◽  
Scale Preparation ◽  
Derivatives Of

We present a short and efficient synthesis of the title compounds starting with cheap and readily available camphor and derivatives of acetophenone. The optimized sequence allows the large-scale preparation of this new type of synthesis in a few steps. New 1,2,3-thiadiazole and 1,2,3-diazaphosphole derivatives 11-20, were prepared from the ketones 1-5 via the corresponding semicarbazones 6-10. The Hurd-Mori and Lalezari methods were used, respectively, for the preparation of these 1,2,3-thiadiazole and 1,2,3-diazaphospholene derivatives. These derivatives exhibit anticancer effect due to their high potential biological activity.

scholarly journals Synthesis of α-Aminophosphonates and Related Derivatives; The Last Decade of the Kabachnik–Fields Reaction

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2511
Author(s):  
Petra R. Varga ◽  
György Keglevich
Keyword(s):  
Biological Activity ◽  
Solvent Free ◽  
Trialkyl Phosphite ◽  
Catalyst Free ◽  
Potential Biological Activity

The Kabachnik–Fields reaction, comprising the condensation of an amine, oxo compound and a P-reagent (generally a >P(O)H species or trialkyl phosphite), still attracts interest due to the challenging synthetic procedures and the potential biological activity of the resulting α-aminophosphonic derivatives. Following the success of the first part (Molecules 2012, 17, 12821), here we summarize the synthetic developments in this field accumulated in the last decade. The procedures compiled include catalytic accomplishments as well as catalyst-free and/or solvent-free “greener” protocols. The products embrace α-aminophosphonates, α-aminophosphinates, and α-aminophosphine oxides along with different bis derivatives from the double phospha-Mannich approach. The newer developments of the aza-Pudovik reactions are also included.

A New Type of Ring-Opening Polymerization

1962 ◽  
Vol 27 (9) ◽  
pp. 3337-3340 ◽  
Author(s):  
Teruaki Mukaiyama ◽  
Tamotsu Fujisawa ◽  
Hiroyuki Nohira ◽  
Teruo Hyugaji
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
New Type

Synthesis and Reactions of Some New Quinoline Thiosemicarbazide Derivatives of Potential Biological Activity

2008 ◽  
Vol 183 (6) ◽  
pp. 1323-1343 ◽  
Author(s):  
E. M. Keshk ◽  
S. I. El-Desoky ◽  
M. A. A. Hammouda ◽  
A. H. Abdel-Rahman ◽  
A. G. Hegazi
Keyword(s):  
Biological Activity ◽  
Potential Biological Activity ◽  
Thiosemicarbazide Derivatives ◽  
Derivatives Of

scholarly journals On the functionalization of benzo[e][2,1]thiazine

2009 ◽  
Vol 5 ◽  
Author(s):  
Kirill Popov ◽  
Tatyana Volovnenko ◽  
Julian Volovenko
Keyword(s):  
Biological Activity ◽  
Reducing Agents ◽  
Potential Biological Activity

The reactions of benzo[e][2,1]thiazine-4-chloro-3-carbaldehydes 1 and benzo[e][2,1]thiazine-4-chloro-3-carbonitriles 2 with a number of oxidizing and reducing agents are reported. A number of new, highly functionalized benzo[e][2,1]thiazine derivatives having potential biological activity were synthesized and described.

Pyrazole‐1‐carbothioamide as a Potent Precursor for Synthesis of Some New N ‐heterocycles of Potential Biological Activity

2018 ◽  
Vol 56 (1) ◽  
pp. 18-31 ◽  
Author(s):  
Islam H. El Azab ◽  
Ola A. Abu Ali ◽  
Aishah H. El‐Zahrani ◽  
Adil A. Gobouri ◽  
Tariq A. Altalhi
Keyword(s):  
Biological Activity ◽  
Potential Biological Activity

scholarly journals Polymerization of Vinyl Monomers Initiated by Thianthrene Cation Radical with Potential Biological Activity

2012 ◽  
Vol 5 (2) ◽  
pp. 127-130 ◽  
Author(s):  
Beomgi Lee ◽  
Seongsim Kim ◽  
Jaeyoung Park ◽  
Hyeonsook Cheong ◽  
Ji Eun Noh ◽  
...  
Keyword(s):  
Biological Activity ◽  
Cation Radical ◽  
Vinyl Monomers ◽  
Potential Biological Activity
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