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Actualités de l'institut

oct. 11 2024

ACS Catalys [COSyS]

Abstract: Analogous to O-glycosides, C-glycosides are natural products exhibiting various bioactivities. Alkynyl C-glycosides represent important key intermediates toward more complex derivatives; however, a convenient access through a single catalytic and highly stereocontrolled step remains an important and only partially solved challenge. Here, a mechanistically designed gold(I)-catalyzed...[En savoir plus]

oct. 4 2024

Chemical Science [SOPhy]

Abstract: Herein, we report the first visible-light-induced strategy for the rapid synthesis of densely functionalized α- and γ-phosphorylated β-sulfonyl enamines in a regio- and stereoselective fashion from N-sulfonyl allenamides and H-phosphine oxides. The transformation displays a broad susbtrate, while operating at room temperature under photocatalyst- and additive-free conditions. In this...[En savoir plus]

oct. 1 2024

Dalton Transactions [SRCO]

Abstract : This work details the synthesis and characterization of low-coordinate Zn(II)-based organocations [(NHC)Zn(R)]+ incorporating extremely bulky NHCs [ITr] and [IAd] ([ITr] = ([ITr] = [(HCNCPh3)2C:]; [IAd] = [(HCNAd)2C:], Ad = adamantyl)). Their structural features and particularities are thoroughly assessed as well as their air and water tolerance. Neutral ITr and IAd adducts...[En savoir plus]

oct. 1 2024

Polym. Chem. [SRCO]

Abstract : he present report describes the first use of unprotected and “free” N-heterocyclic carbenes (NHCs), such as IMes, IPr and air-stable Cl-IPr carbenes, as single component initiators for the alternating ring-opening co-polymerization (ROCOP) of cyclic anhydrides (phthalic anhydride, PA; succinic anhydride, SA) and various epoxides to efficiently and selectively access the corresponding...[En savoir plus]

sept. 30 2024

J. Chem. Phys. [LCQS]

Abstract : In recent works by Yalouz et al. (J. Chem. Phys. 157, 214112, 2022) and Sekaran et al. (Phys. Rev. B 104, 035121, 2021; Computation 10, 45, 2022), Density Matrix Embedding Theory (DMET) has been reformulated through the use of the Householder transformation as a novel tool to embed a fragment within extended systems. The transformation was applied to a reference non-interacting...[En savoir plus]

sept. 30 2024

Communications Biology [Biogéochimie Moléculaire]

Abstract : A seed recovered during archaeological excavations of a cave in the Judean desert was germinated, with radiocarbon analysis indicating an age of 993 CE– 1202 calCE. DNA sequencing and phylogenetic analysis identified the seedling as belonging to the angiosperm genus Commiphora Jacq., sister to three Southern African Commiphora species, but unique from all other species sampled to...[En savoir plus]

sept. 16 2024

Science Advances [SOPhy]

Abstract : Strigolactones exhibit dual functionality as regulators of plant architecture and signaling molecules in the rhizosphere. The important model crop rice exudes a blend of different strigolactones from its roots. Here, we identify the inaugural noncanonical strigolactone, 4-oxo-methyl carlactonoate (4-oxo-MeCLA), in rice root exudate. Comprehensive, cross-species coexpression analysis...[En savoir plus]

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