Journal ArticleDOI
3d Transition Metals for C-H Activation.
Parthasarathy Gandeepan,Thomas Müller,Daniel Zell,Gianpiero Cera,Svenja Warratz,Lutz Ackermann +5 more
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TLDR
A comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018 is provided.Abstract:
C–H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C–H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C–H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C–H activation until summer 2018.read more
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Journal ArticleDOI
Ir-catalyzed proximal and distal C-H borylation of arenes.
Chabush Haldar,Emdadul Hoque,Jagriti Chaturvedi,Mirja Md Mahamudul Hassan,Buddhadeb Chattopadhyay +4 more
TL;DR: In this paper, the authors have demonstrated some of the recent discoveries from their laboratories for the proximal (ortho) and distal (meta and para) selective borylation reactions for a diverse class of substrates.
Journal ArticleDOI
Catalytic, Enantioselective C2-Functionalization of 3-Aminobenzofurans Using N-Heterocyclic Carbenes.
TL;DR: N-Heterocyclic carbene catalyzed enantioselective functionalization of 3-aminobenzofurans at the C2-position was realized using 2-bromoenals as the coupling partner and the C1-alkylated products were formed in moderate to high yields and selectivity.
Journal ArticleDOI
Merging C–H and C–C Activation in Pd(II)-Catalyzed Enantioselective Synthesis of Axially Chiral Biaryls
TL;DR: The merging of C–H and C–C bond cleavage into one single chemical process remains a daunting challenge, especially in an asymmetric manner, and a Pd(II)-catalyzed enantioselective tandem C-H/C-C tandem is presented.
Journal ArticleDOI
Chromium(III)-Catalyzed C(sp2)-H Alkynylation, Allylation, and Naphthalenation of Secondary Amides with Trimethylaluminum as Base.
Mengqing Chen,Takahiro Doba,Takenari Sato,Hlib Razumkov,Laurean Ilies,Rui Shang,Eiichi Nakamura +6 more
TL;DR: Chromium(III)-catalyzed C(sp2)-H functionalization of an ortho-position of aromatic and α,β-unsaturated secondary amides using readily available AlMe3 as a base, and using bromoalkynes, allyl bromide, and 1, 4-dihydro-1,4-epoxynaphthalene as electrophiles is reported.
Journal ArticleDOI
Ruthenium(II)-Catalyzed Oxidative Double C-H Activation and Annulation Reaction: Synthesis of Indolo[2,1-a]isoquinolines.
TL;DR: The first metal-catalyzed double aryl C(sp2)-H bond activation of antipyrine and alkyne annulation reaction is reported.
References
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Understanding TiO2 photocatalysis: mechanisms and materials.
Jenny Schneider,Masaya Matsuoka,Masato Takeuchi,Jinlong Zhang,Yu Horiuchi,Masakazu Anpo,Detlef W. Bahnemann +6 more
TL;DR: This paper presents a meta-analyses of the chiral stationary phase transition of Na6(CO3)(SO4)2, Na2SO4, and Na2CO3 of the Na2O/Na2O 2 mixture at the stationary phase and shows clear patterns in the response of these two materials to each other.
Journal ArticleDOI
Organic Photoredox Catalysis
TL;DR: An overview of the basic photophysics and electron transfer theory is presented in order to provide a comprehensive guide for employing this class of catalysts in photoredox manifolds.