S
Samir Z. Zard
Researcher at École Polytechnique
Publications - 584
Citations - 11608
Samir Z. Zard is an academic researcher from École Polytechnique. The author has contributed to research in topics: Xanthate & Radical. The author has an hindex of 50, co-authored 575 publications receiving 10739 citations. Previous affiliations of Samir Z. Zard include Roussel Uclaf & Centre national de la recherche scientifique.
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A convergent route to functional protected amines, diamines, and β-amino acids
TL;DR: In this paper, a convergent and modular access to densely functionalized protected amines and diamines is provided, with the use of NBS under peroxide initiation to give geminal phthalimido-bromo derivatives, which are readily converted into corresponding xanthates.
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Proof of a radical transannular hydrogen migration in the longifolene series.
TL;DR: In this article, a decarboxylation of isolongifolic acid 3a affords in good yield the thio-ether 4 through a reaction involving a clean 1,5-transannular hydrogen shift.
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A new synthesis of 3-aryl substituted oxindoles
TL;DR: In this paper, a variety of 3-aryl substituted oxindoles can be rapidly constructed by treatment of a suitable 2,2-dimethoxy arylacetanilide, with titanium tetrachloride or boron trifluoride etherate.
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Carbon radical attack on a pyrimidine nitrogen. An unusual entry into polycyclic aminopyrimidones.
Ling Qin,Zhibo Liu,Samir Z. Zard +2 more
TL;DR: Unprecedented examples of a synthetically useful radical ring closure onto a pyrimidine nitrogen leading to novel, highly functionalized bi- and tricyclic pyrimidone structures are reported.
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Radical Solution to the Alkylation of the Highly Base-Sensitive 1,1-Dichloroacetone. Application to the Synthesis of Z-Alkenoates and E,E-Dienoates
TL;DR: A simple radical-based route to gem-α-dichloroketones, relying on the degenerative addition transfer of (S)-[3,3- dichloro-2-oxopropyl]-O-ethyl dithiocarbonate (xanthate), is described.