Results 11 to 20 of about 14,652 (153)

Conformation-Dependent Electron Donation of Nido-Carborane Substituents and Its Influence on Phosphorescence of Tris(2,2′-bipyridyl)ruthenium(II) Complex

Crystals, 2022
In this work, we report the synthesis of the nido-carborane-substituted ruthenium complexes and the substituent effects of nido-carboranes on the optical properties.
Kyoya Uemura, Kazuo Tanaka, Yoshiki Chujo   +2 more
doaj   +2 more sources

Synthesis of a novel planar-chiral nido-carborane amino acid [PDF]

Russian Chemical Bulletin, 2021
The deboronation of enantiomers of planar-chiral benzyl (3-formamido-1,2-dicarba-closo-dodecaboran-1-yl)acetate gave the individual (RP)- and (SP)-enantiomers (ee > 98%) of a new amino acid containing a nido-carborane fragment, (3-ammonio-7,8-dicarba-nido-undecaboran-7-yl)acetic acid.
Telegina, A. A., Gruzdev, D. A., Levit, G. L., Krasnov, V. P.   +3 more
openaire   +3 more sources

Synthesis and Reactivity of Cyclic Oxonium Derivatives of nido-Carborane: A Review

Reactions, 2022
Nucleophilic ring-opening reactions of cyclic oxonium derivatives of anionic boron hydrides are a convenient method of their modification which opens practically unlimited prospects for their incorporation into various macro- and biomolecules.
Marina Yu. Stogniy, Igor B. Sivaev
doaj   +2 more sources

Structure-Activity Relationships of <i>closo</i>- and <i>nido</i>-Carborane Erlotinib Analogs: Lipophilicity as a Key Modulator of Anti-Glioma Activity. [PDF]

Pharmaceuticals (Basel)
Background/Objectives: To enhance the anti-glioma activity of erlotinib, we previously developed a series of carborane-based analogs exploiting the concept of three-dimensional bioisosterism.
Dávila B, Vignolo P, Silvarrey M, Benítez A, González Schmidt J, de Arteaga Guidotti C, García MF, Cerecetto H, Couto M.   +8 more
europepmc   +2 more sources

Emerging agents for boron neutron capture therapy: Biomolecular carriers paving the way for precision radiotherapy. [PDF]

Precis Radiat Oncol
Boron neutron capture therapy (BNCT) requires key non‐negotiable technical criteria: megadose administration, precise tumor‐specific targeting, favorable biocompatibility, and sustained tumor retention. Overcoming these interconnected challenges fundamentally depends on biomolecular carriers, which are critical for translating the therapeutic potential
Chen C, Yang M, Wang J, Zhang L, Huang S, Xu X, Liu Y.   +6 more
europepmc   +2 more sources

Nucleophilic Addition Reactions to 10-Acetonitrilium Derivative of nido-Carborane and Intramolecular NH⋯HB Interactions in N-Alkyl Amidines 10-RNHC(Me)=NH-7,8-C₂B₉H₁₁. [PDF]

Molecules
The addition reactions of water, alcohols, and primary and secondary amines to the 10-acetonitrilium derivative of nido-carborane were studied. Hydrolysis of 10-MeC≡N-7,8-C2B9H11 results in iminol 10-MeC(OH)=HN-7,8-C2B9H11, which, on treatment with a ...
Pakholkov KR, Bogdanova EV, Stogniy MY, Suponitsky KY, Anufriev SA, Sivaev IB, Bregadze VI.   +6 more
europepmc   +2 more sources

Dimethyloxonium and Methoxy Derivatives of nido-Carborane and Metal Complexes Thereof

Inorganics, 2019
9-Dimethyloxonium, 10-dimethyloxonium, 9-methoxy and 10-methoxy derivatives of nido-carborane (9-Me2O-7,8-C2B9H11, 10-Me2O-7,8-C2B9H11, [9-MeO-7,8-C2B9H11]−, and [10-MeO-7,8-C2B9H11]−, respectively) were prepared by the reaction of the parent
Marina Yu. Stogniy, Svetlana A. Erokhina, Irina D. Kosenko, Andrey A. Semioshkin, Igor B. Sivaev   +4 more
doaj   +2 more sources

Synthesis and Structure of Nido-Carboranyl Azide and Its “Click” Reactions

Molecules, 2021
Novel zwitter-ionic nido-carboranyl azide 9-N3(CH2)3Me2N-nido-7,8-C2B9H11 was prepared by the reaction of 9-Cl(CH2)3Me2N-nido-7,8-C2B9H11 with NaN3.
Anna A. Druzina, Olga B. Zhidkova, Nadezhda V. Dudarova, Irina D. Kosenko, Ivan V. Ananyev, Sergey V. Timofeev, Vladimir I. Bregadze   +6 more
doaj   +2 more sources

Site-Selective B─H Activation via HAT Toward Xanthyl-closo-Carboranes as Bench-Stable Precursors of Organosulfur Boron Clusters. [PDF]

Angew Chem Int Ed Engl
A light mediated direct regioselective B─H functionalization, via hydrogen atom transfer (HAT), is described. Unexplored xanthyl‐closo‐carboranes as novel bench‐stable and versatile platforms to access sulfur‐containing boron clusters are reported for the first time.
Rusconi M, Magi E, Renzi P, Azzi E, Lagostina V, Salvadori E, Chiesa M, Hischa B, Ghigo G, Deagostino A.   +9 more
europepmc   +3 more sources

A Redox-Tunable Carborane Crown: Toward Highly Selective Electrochemical Lithium Capture. [PDF]

Chemistry
Electrochemical reduction transforms a new carborane–crown into a potent 2e− reduced nido anion with a redox‐tunable cavity that captures Li⁺ selectively over Na⁺ and K⁺. The coupling of electronic control and size‐matched binding offers a blueprint for selective, rapid lithium recovery for next‐generation direct lithium extraction. Abstract Lithium is
Heinrich S, Wang Z, Rajpurohit J, Yeow A, Dobrovetsky R, Sepunaru L, Ménard G.   +6 more
europepmc   +2 more sources