Articles with "sp2" as a keyword



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Synthesis of sp2 Carbon-Conjugated Covalent Organic Framework Thin-Films via Copper-Surface-Mediated Knoevenagel Polycondensation.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202207972

Abstract: sp2 carbon-conjugated covalent organic framework (sp2 c-COF) featured with high π-conjugation, high chemical stabilities, and designable chemical structures, are thus promising for applications including adsorption and separation, optoelectronic devices, and catalysis. For the most of… read more here.

Keywords: synthesis sp2; sp2; sp2 cof; carbon conjugated ... See more keywords
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Transcription factor Sp2 promotes TGFB-mediated interstitial cell osteogenic differentiation in bicuspid aortic valves through a SMAD-dependent pathway.

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Published in 2021 at "Experimental cell research"

DOI: 10.1016/j.yexcr.2021.112972

Abstract: Calcification of the bicuspid aortic valve (BAV) involves differential expression of various RNA genes, which is achieved through complex regulatory networks that are controlled in part by transcription factors and microRNAs. We previously found that… read more here.

Keywords: expression; differentiation; pathway; mir 195 ... See more keywords
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C(sp2)–C(sp2) Reductive Elimination from a Diarylplatinum(II) Complex Induced by a S–S Bond Oxidative Addition at Room Temperature

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Published in 2020 at "Organometallics"

DOI: 10.1021/acs.organomet.9b00771

Abstract: The synthesis and characterization of three six-coordinated Pt(IV) complexes with the stoichiometry [Pt(Ar)2(S∧N)2] (S∧N = Sbt, benzothiazole-2-thiolate, Ar = p-MeC6H4 (1a), C6F5 (1b); S∧N = Spy, 2-pyridinethiolate, Ar = p-MeC6H4 (1c)) is described. Of these,… read more here.

Keywords: elimination; sp2; reductive elimination; room temperature ... See more keywords
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Pd-Catalyzed Domino Imidoylation/Heck/C(sp2)-H Cyclization: Isocyanide Relay Strategy toward Tricyclic-Fused Heterocycles Containing an All-Carbon Quaternary Center.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c02503

Abstract: A palladium-catalyzed domino process for the quick assembly of tricyclic-fused heterocycles starting from aryl iodides and functionalized isocyanides containing a disubstituted terminal alkene has been developed. The process is triggered by intermolecular isocyanide insertion, followed… read more here.

Keywords: sp2; domino imidoylation; catalyzed domino; fused heterocycles ... See more keywords
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Reductive Cleavage of C(sp2)-CF3 Bonds in Trifluoromethylpyridines.

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Published in 2023 at "Organic letters"

DOI: 10.1021/acs.orglett.3c00258

Abstract: A reductive detrifluoromethylation protocol has been developed making use of an earth-abundant alkoxide base and silicon hydride species. A variety of pyridine and quinoline substrates bearing alkyl, aryl, and amino functional groups are reduced in… read more here.

Keywords: cleavage sp2; sp2 cf3; cf3 bonds; sp2 ... See more keywords
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Metal-Free Sequential C(sp2)-H/OH and C(sp3)-H Aminations of Nitrosoarenes and N-Heterocycles to Ring-Fused Imidazoles.

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Published in 2017 at "Organic letters"

DOI: 10.1021/acs.orglett.7b00832

Abstract: Hydrogen bond assisted ortho-selective C(sp2)-H amination of nitrosoarenes and subsequent α-C(sp3)-H functionalization of aliphatic amines is achieved under metal-free conditions. The annulation of nitrosoarenes and 2-hydroxy-C-nitroso compounds with N-heterocycles provides a facile excess to a… read more here.

Keywords: sp2 sp3; free sequential; ring fused; sequential sp2 ... See more keywords
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Late-stage C(sp2)–H and C(sp3)–H glycosylation of C-aryl/alkyl glycopeptides: mechanistic insights and fluorescence labeling†‡

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Published in 2020 at "Chemical Science"

DOI: 10.1039/d0sc01260b

Abstract: C(sp3)–H and C(sp2)–H glycosylations of structurally complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed peptide–saccharide conjugation provided modular access to structurally complex C-alkyl glycoamino acids, glycopeptides and C-aryl… read more here.

Keywords: alkyl; late stage; sp2 sp3; stage sp2 ... See more keywords
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Alkali-amide-catalyzed divergent sp2 and sp3 C–H bonds alkylation of alkylthiophenes with alkenes

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Published in 2021 at "Organic chemistry frontiers"

DOI: 10.1039/d1qo00627d

Abstract: The divergent transformations of different C–H bonds in a given substrate represent the state of the art in C–H functionalization reactions, wherein there is a need for precise control of the selectivity of the catalyst.… read more here.

Keywords: alkali amide; sp2; alkylthiophenes alkenes; sp3 bonds ... See more keywords
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Formation of refractory black carbon by SP2-induced charring of organic aerosol

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Published in 2018 at "Aerosol Science and Technology"

DOI: 10.1080/02786826.2018.1531107

Abstract: Black carbon (BC) in the atmosphere continues to be a focus of research because its light-absorptive properties put it second only to CO2 as a warming agent of Earth’s climate. Towards this end, the measurement… read more here.

Keywords: black carbon; organic aerosols; carbon; formation refractory ... See more keywords
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Fluoro-labelled sp2-iminoglycolipids with immunomodulatory properties.

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Published in 2023 at "European journal of medicinal chemistry"

DOI: 10.2139/ssrn.4379429

Abstract: The unique electronic properties of the fluorine atom make its strategic incorporation into a bioactive compound a very useful tool in the design of drugs with optimized pharmacological properties. In the field of the carbohydrates,… read more here.

Keywords: labelled sp2; sp2; fluoro labelled; immunomodulatory properties ... See more keywords
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Bond-Orbital-Resolved Piezoelectricity in Sp2-Hybridized Monolayer Semiconductors

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Published in 2022 at "Materials"

DOI: 10.3390/ma15217788

Abstract: Sp2-hybridized monolayer semiconductors (e.g., planar group III-V and IV-IV binary compounds) with inversion symmetry breaking (ISB) display piezoelectricity governed by their σ- and π-bond electrons. Here, we studied their bond-orbital-resolved electronic piezoelectricity (i.e., the σ-… read more here.

Keywords: hybridized monolayer; piezoelectricity; sp2; monolayer semiconductors ... See more keywords