Zobrazeno 1 - 10 of 44 pro vyhledávání: '"Dipak Kumar Roy"'
1
Recent Advances in the Synthesis and Reactivity of Transition Metal σ-Borane/Borate Complexes
Autor: Holger Braunschweig, Dipak Kumar Roy, Rian D. Dewhurst, Sundargopal Ghosh, Koushik Saha
Publikováno v: Accounts of Chemical Research. 54:1260-1273
The coordination of an element-element σ bond to a transition metal (TM) is both a fundamentally intriguing binding mode and of critical importance to metal-mediated bond activation mechanisms and catalysis, particularly the hotly contested field of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c7ad15fd62d3f28661eb0a70425d50e
https://doi.org/10.1021/acs.accounts.0c00819
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3
Steric Effects Dictate the Formation of Terminal Arylborylene Complexes of Ruthenium from Dihydroboranes
Autor: Krzysztof Radacki, Carsten Lenczyk, Jörn Nitsch, Todd B. Marder, Rian D. Dewhurst, Holger Braunschweig, F. Matthias Bickelhaupt, Florian Rauch, Dipak Kumar Roy
Publikováno v: Chemistry (Weinheim an Der Bergstrasse, Germany)
Chemistry : a European Journal, 25, 1-7
Chemistry-A European Journal, 25(59), 13566-13571. Wiley-VCH Verlag
Lenczyk, C, Roy, D K, Nitsch, J, Radacki, K, Rauch, F, Dewhurst, R D, Bickelhaupt, F M, Marder, T B & Braunschweig, H 2019, ' Steric Effects Dictate the Formation of Terminal Arylborylene Complexes of Ruthenium from Dihydroboranes ', Chemistry-A European Journal, vol. 25, no. 59, pp. 13566-13571 . https://doi.org/10.1002/chem.201902890
Chemistry : a European Journal, 25, pp. 1-7
The steric and electronic properties of aryl substituents in monoaryl borohydrides (Li[ArBH3]) and dihydroboranes were systematically varied and their reactions with [Ru(PCy3)2HCl(H2)] (Cy: cyclohexyl) were studied, resulting in bis(σ)‐borane or t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64466f92c78a93cf35c606e162c07ca4
http://europepmc.org/articles/PMC7079023
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4
New Outcomes of Beryllium Chemistry: Lewis Base Adducts for Salt Elimination Reactions
Autor: Carsten Lenczyk, Julia K. Schuster, Jan Mies, Dipak Kumar Roy, Holger Braunschweig
Publikováno v: Inorganic Chemistry. 58:2652-2658
A range of mono- and bis-adducts of beryllium dichloride with cyclic (alkyl)(amino)carbenes (CAAC), cyclic diamidocarbene (DAC), and carbodiphosphorane (CDP) are prepared, and their reactions with nucleophiles are studied. Salt elimination with Yamas
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a84e9ed399a6a36303faa9505cd67cf
https://doi.org/10.1021/acs.inorgchem.8b03263
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5
Isolation and Reactivity of an Antiaromatic s-Block Metal Compound
Autor: Conor Pranckevicius, Holger Braunschweig, Krzysztof Radacki, Felipe Fantuzzi, Rian D. Dewhurst, Carsten Lenczyk, Bernd Engels, Dipak Kumar Roy, Tobias Tröster
Publikováno v: Angewandte Chemie (International Ed. in English)
The concepts of aromaticity and antiaromaticity have a long history, and countless demonstrations of these phenomena have been made with molecules based on elements from the p, d, and f blocks of the periodic table. In contrast, the limited oxidation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cbe313fc4f513ad00ef69a66a926f2f
https://pubmed.ncbi.nlm.nih.gov/33210400
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6
Recent Developments in Azaborinine Chemistry
Autor: Dipak Kumar Roy, Guillaume Bélanger-Chabot, Holger Braunschweig
Publikováno v: European Journal of Inorganic Chemistry. 2017:4353-4368
Recent years have witnessed rapid advances in the field of BN/CC isosterism, in particular, in the case of azaborinines. Examples of each isomer have now been synthesized and characterized. This review provides a survey of the latest methods for the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e022a9e8c2f8d08d920ab15add88d9c5
https://doi.org/10.1002/ejic.201700562
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8
Toward Transition-Metal-Templated Construction of Arylated B
Autor: Carsten, Lenczyk, Dipak Kumar, Roy, Kai, Oberdorf, Jörn, Nitsch, Rian D, Dewhurst, Krzysztof, Radacki, Jean-François, Halet, Todd B, Marder, Matthias, Bickelhaupt, Holger, Braunschweig
Publikováno v: Chemistry (Weinheim an Der Bergstrasse, Germany)
The reactivity of a diruthenium tetrahydride complex towards three selected dihydroboranes was investigated. The use of [DurBH2] (Dur=2,3,5,6‐Me4C6H) and [(Me3Si)2NBH2] led to the formation of bridging borylene complexes of the form [(Cp*RuH)2BR] (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::8ce7503802651c45b32a5fb4d80346d7
https://pubmed.ncbi.nlm.nih.gov/31663648
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9
First Bis(σ)-borane Complexes of Group 6 Transition Metals: Experimental and Theoretical Studies
Autor: Ashwini K. Phukan, Carsten Lenczyk, Bijoy Ghosh, Holger Braunschweig, Johannes Schwarzmann, Dipak Kumar Roy
Publikováno v: Chemistry (Weinheim an der Bergstrasse, Germany). 25(36)
A series of bis(σ)-borane complexes of Group 6 transition metals were prepared by direct dihydroborane coordination to the metal center. Reaction of [M(CO)3 (PCy3 )2 ] and two dihydroboranes [DurBH2 ] and [(Me3 Si)2 NBH2 ] (Dur=2,3,5,6-Me4 C6 H) yie
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0519f180012708a89bcca709122b5f9
https://pubmed.ncbi.nlm.nih.gov/31066951
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10
Toward Transition-Metal-Templated Construction of Arylated B4 Chains by Dihydroborane Dehydrocoupling
Autor: Krzysztof Radacki, Todd B. Marder, Jörn Nitsch, Carsten Lenczyk, Dipak Kumar Roy, Kai Oberdorf, Rian D. Dewhurst, F. Matthias Bickelhaupt, Holger Braunschweig, Jean-François Halet
Publikováno v: Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2019, 25 (72), pp.16544-16549. ⟨10.1002/chem.201904772⟩
Lenczyk, C, Roy, D K, Oberdorf, K, Nitsch, J, Dewhurst, R D, Radacki, K, Halet, J F, Marder, T B, Bickelhaupt, M & Braunschweig, H 2019, ' Toward Transition-Metal-Templated Construction of Arylated B 4 Chains by Dihydroborane Dehydrocoupling ', Chemistry-A European Journal, vol. 25, no. 72, pp. 16544-16549 . https://doi.org/10.1002/chem.201904772
Chemistry-A European Journal, 25(72), 16544-16549. Wiley-VCH Verlag
Chemistry : a European Journal, 25, 72, pp. 16544-16549
Chemistry : a European Journal, 25, 16544-16549
Chemistry-A European Journal, 2019, 25 (72), pp.16544-16549. ⟨10.1002/chem.201904772⟩
The reactivity of a diruthenium tetrahydride complex towards three selected dihydroboranes was investigated. The use of [DurBH2] (Dur=2,3,5,6-Me4C6H) and [(Me3Si)2NBH2] led to the formation of bridging borylene complexes of the form [(Cp*RuH)2BR] (Cp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5f48dee06bc9ee6e7c8b4dfa2eaf28f
https://doi.org/10.1002/chem.201904772
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