Four conformationally restricted bicyclic 2'-spiro nucleosides were synthesised and incorporated into oligonucleotides. These spiro nucleotides induced decreased duplex thermostabilities.
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http://dx.doi.org/10.1081/NCN-120022954 | DOI Listing |
Heliyon
February 2024
Young Researchers and Elite Club, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran.
The present study serves experimental and theoretical analyses in developing a hybrid advanced structure as a photolysis, which is based on electrospun Graphene Oxide-titanium dioxide (GO-TiO) nanofibers as an electron transfer material (ETMs) functionalized for perovskite solar cell (PVSCs) with GO. The prepared ETMs were utilized for the synthesis of mixed-cation (FAPbI3)0.8(MAPbBr3)0.
View Article and Find Full Text PDFInorg Chem
September 2023
School of Chemistry, University of Melbourne, Victoria 3010, Australia.
Spin crossover (SCO) complexes can reversibly switch between low spin (LS) and high spin (HS) states, affording possible applications in sensing, displays, and molecular electronics. Dinuclear SCO complexes with access to [LS-LS], [LS-HS], and [HS-HS] states may offer increased levels of functionality. The nature of the SCO interconversion in dinuclear complexes is influenced by the local electronic environment.
View Article and Find Full Text PDFChem Sci
October 2021
Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University No. 2318, Yuhangtang Road Hangzhou 311121 P. R. China
Catalytic asymmetric variants for functional group transformations based on carbon-carbon bond activation still remain elusive. Herein we present an unprecedented palladium-catalyzed (3 + 2) spiro-annulation merging C(sp)-C(sp) σ bond activation and click desymmetrization to form synthetically versatile and value-added oxaspiro products. The operationally straightforward and enantioselective palladium-catalyzed atom-economic annulation process exploits a TADDOL-derived bulky P-ligand bearing a large cavity to control enantioselective spiro-annulation that converts cyclopropenones and cyclic 1,3-diketones into chiral oxaspiro cyclopentenone-lactone scaffolds with good diastereo- and enantio-selectivity.
View Article and Find Full Text PDFChemistry
March 2019
Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P.R. China.
A series of unprecedented metallacycles of indium, including indacyclopentadienes (2), spiro indacyclopentadienes (3), aromatic indacyclopentadienyl dianions with an In-Li bond (4), and aromatic indacyclopentadienyl dianions with an In-In bond (5), were synthesized and structurally characterized by single-crystal X-ray structural analysis for the first time. Both indacyclopentadienes 2 and 3 were synthesized by reaction of 1,4-dilithio-1,3-butadienes with InCl . Structural transformations between 2 and 3 were observed.
View Article and Find Full Text PDFOrg Lett
December 2016
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
A copper-catalyzed oxidative dearomatization/spirocyclization of indole-2-carboxamides using tert-butyl hydroperoxide (TBHP) as the oxidant has been developed that provides rapid and efficient access to C2-spiro-pseudoindoxyls. Two of the sp C-H bonds are functionalized during the reaction process, and the reaction likely proceeds via the formation of a highly reactive 3H-indol-3-one intermediate followed by aromatic electrophilic substitution with the N-aryl ring of the amide moiety.
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