Review by: C. H. S. F.

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Now showing items 1 - 16 of 104858

C–H/C–F functionalization by E -selective ruthenium (II) catalysis

Dhawa, Uttam Zell, Daniel Yin, Rongxin Okumura, Shintaro Murakami, Masahiro Ackermann, Lutz

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C–H/C–F functionalization by E-selective ruthenium (II) catalysis

Uttam Dhawa Daniel Zell Rongxin Yin Shintaro Okumura Masahiro Murakami Lutz Ackermann

Graphical abstract Highlights • Unprecedented ruthenium-catalyzed C–F/C–H functionalization. • Highly E -diastereoselective C–F/C–H functionalization. • A removable directing-group approach. • Mechanistic insights into ruthenium-catalyzed C–F/C–H functionalizations.

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Highest-T(c)organic enantiomeric ferroelectrics obtained by F/H substitution

Ai, Yong Wu, Dong-Ji Yang, Meng-Juan Wang, Pan He, Wen-Hui Liao, Wei-Qiang

Through the strategy of F/H substitution, we precisely designed the highest-T-c(phase transition temperature) organic enantiomeric ferroelectrics, (R)- and (S)-(N,N-dimethyl-3-fluoropyrrolidinium) iodide, of which theT(c)reaches up to 470 K, far beyond those of other enantiomeric ferroelectrics and also the commercial ferroelectric BaTiO3.

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Cross-Dehydrogenative C–H/S–H Coupling Reactions

Hosseinian, Akram; Ahmadi, Sheida; Nasab, Fatemeh Alsadat Hosseini; Mohammadi, Robab; Vessally, Esmail

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Dual C–F/C–H functionalization unveiled

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Dual C–F/C–H functionalization unveiled

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C(sp3)–F, C(sp2)–F and C(sp3)–H bond activation at silicon(II) center

Swamy, V.S.V.S.N. Parvin, Nasrina Vipin Raj, K Vanka, Kumar Sen, Sakya Singha

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Facile C–H, C–F, C–Cl, and C–C Activation by Oxatitanacyclobutene Complexes

T. T. Nguyen J. A. Bertke D. L. Gray K. L. Hull

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Electrocatalytic Oxidant-Free Dehydrogenative C?H/S?H Cross-Coupling

Wang, Pan Tang, Shan Huang, Pengfei Lei, Aiwen

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Electrocatalytic Oxidant-Free Dehydrogenative C?H/S?H Cross-Coupling

Wang, Pan Tang, Shan Huang, Pengfei Lei, Aiwen

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Catalytic C–H/C–F Coupling of Azoles and Acyl Fluorides

Ogiwara, Yohei Iino, Yurika Sakai, Norio

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Electrocatalytic Oxidant-Free Dehydrogenative C−H/S−H Cross-Coupling

Wang, Pan; Tang, Shan; Huang, Pengfei; Lei, Aiwen

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From C–S–H to C–A–S–H: Experimental study and thermodynamic modelling

Jeremy Haas André Nonat

Abstract It has long been known that the stoichiometry of C–S–H varies with the calcium hydroxide concentration in solution. However, this issue is still far from understood. We revisit it in both experimental and modelling aspects. A careful analysis of the solubility confirms the existence of three different C–S–H phases, defined as Ca 4 H 4 Si 5 O 16 , Ca 2 H 2 Si 2 O 7 and Ca 6 (HSi 2 O 7 ) 2 (OH) 2 , respectively. The variation of the Ca/Si ratio of the three phases has been described by surface reactions: the increase of the Si content is accounted for by silicate bridging, the increase of calcium content and the surface charge are accounted for by reactions involving silanol groups via deprotonation and complexation with calcium. In the presence of Al in solution, the uptake of Al by C–S–H is experimentally observed. The Al content increases with Al concentration. C–A–S–H formation is modelled by the competition between silicate and aluminate tetrahedra for the bridging of the dimeric silicates in C–S–H.

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From C–S–H to C–A–S–H: Experimental study and thermodynamic modelling

Haas, Jeremy Nonat, André

It has long been known that the stoichiometry of C-S-H varies with the calcium hydroxide concentration in solution. However, this issue is still far from understood. We revisit it in both experimental and modelling aspects. A careful analysis of the solubility confirms the existence of three different C-S-H phases, defined as Ca4H4Si5O16, Ca2H2Si2O7 and Ca-6(HSi2O7)(2)(OH)(2), respectively. The variation of the Ca/Si ratio of the three phases has been described by surface reactions: the increase of the Si content is accounted for by silicate bridging, the increase of calcium content and the surface charge are accounted for by reactions involving silanol groups via deprotonation and complexation with calcium. In the presence of Al in solution, the uptake of Al by C-S-H is experimentally observed. The Al content increases with Al concentration. C-A-S-H formation is modelled by the competition between silicate and aluminate tetrahedra for the bridging of the dimeric silicates in C-S-H. (C) 2014 Elsevier Ltd. All rights reserved.

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F. C. S. Schiller\"s Last Pragmatism Course

Porrovecchio

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Book Review: The Power of Communication by Garcia, H. F.

Grant, L.; Wright, C.

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C–H/C–F functionalization by E -selective ruthenium (II) catalysis

C–H/C–F functionalization by E-selective ruthenium (II) catalysis

Highest-T(c)organic enantiomeric ferroelectrics obtained by F/H substitution

Cross-Dehydrogenative C–H/S–H Coupling Reactions

Dual C–F/C–H functionalization unveiled

Dual C–F/C–H functionalization unveiled

C(sp3)–F, C(sp2)–F and C(sp3)–H bond activation at silicon(II) center

Facile C–H, C–F, C–Cl, and C–C Activation by Oxatitanacyclobutene Complexes

Electrocatalytic Oxidant-Free Dehydrogenative C?H/S?H Cross-Coupling

Electrocatalytic Oxidant-Free Dehydrogenative C?H/S?H Cross-Coupling

Catalytic C–H/C–F Coupling of Azoles and Acyl Fluorides

Electrocatalytic Oxidant-Free Dehydrogenative C−H/S−H Cross-Coupling

From C–S–H to C–A–S–H: Experimental study and thermodynamic modelling

From C–S–H to C–A–S–H: Experimental study and thermodynamic modelling

F. C. S. Schiller\"s Last Pragmatism Course

Book Review: The Power of Communication by Garcia, H. F.

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