Activation of a Nonstrained C(sp2)−C(sp2) Single Bond in a Vaska Complex Analogue Using Chelating Assistance

2011 ◽  
Vol 30 (1) ◽  
pp. 171-186 ◽  
Author(s):  
Andreas Obenhuber ◽  
Klaus Ruhland
Keyword(s):  
Single Bond ◽  
Complex Analogue

Nickel-Catalyzed Inter- and Intramolecular Carbon-Sulfur Bond Metathesis by Reversible Arylation

2019 ◽  
Author(s):  
Tristan Delcaillau ◽  
Alessandro Bismuto ◽  
Zhong Lian ◽  
Bill Morandi
Keyword(s):  
Good Yield ◽  
Functional Group ◽  
Product Formation ◽  
Single Bond ◽  
Ring Closing Metathesis ◽  
Catalytic Systems ◽  
Metathesis Reactions ◽  
New Applications ◽  
Further Development ◽  
Sulfur Bond

A nickel-catalyzed carbon-sulfur bond metathesis has been developed to access high-value thioethers. 1,2-bis(dicyclohexylphosphino)ethane (dcype) is essential to promote this highly functional group tolerant reaction. Further, synthetically challenging macrocycles could be obtained in good yield in an unusual example of ring-closing metathesis which does not involve alkene bonds. In-depth organometallic studies support a reversible Ni(0)-Ni(II) pathway to product formation. Overall, this work does not only disclose a more sustainable and more functional group tolerant alternative to previous catalytic systems based on Pd, but also presents new applications and mechanistic information which are highly relevant to the further development and application of unusual single bond metathesis reactions.

The effect of enamel moisture on tensile bond strength of composite resin using Single bond in total etch technique

2014 ◽  
Vol 10 (1) ◽  
pp. 59-68
Author(s):  
H Afshar ◽  
M Ghandehari ◽  
S Amiri ◽  
Z Mirzayi ◽  
M Pourali ◽  
...  
Keyword(s):  
Bond Strength ◽  
Composite Resin ◽  
Tensile Bond Strength ◽  
Single Bond

Laser Therapy Evaluation in Complications of Restorations by Total-Etch Technique

2018 ◽  
Vol 69 (4) ◽  
pp. 921-925
Author(s):  
Cristina Angela Ghiorghe ◽  
Andra Claudia Gamen ◽  
Tiberiu Tirca ◽  
Sorin Andrian ◽  
Anca Melian ◽  
...  
Keyword(s):  
Laser Treatment ◽  
Laser Therapy ◽  
Hybrid Composite ◽  
Study Groups ◽  
Composite Resins ◽  
Single Bond ◽  
Class Iii ◽  
Anterior Teeth ◽  
Carious Lesions ◽  
Etch And Rinse

The aim of this study was to evaluate the efficiency of laser therapy in post-operative sensitivity by Visual Analogue Scale (VAS) to the 57 patients after restoration with two different resins composite. In the first group (28 patients, 30 teeth) it was restored the cavity class I Black with micro-hybrid composite Filtek Z250 - Adper Single Bond (3M/ESPE). In the second group (29 patients, 30 teeth) it was restored the cavity class III Black with nano-hybrid composite Ceram X One Sphere Tec-Prime and Bond One (Etch&Rinse) (Dentsply). The restorative treatments were performed by the same practitioner on posterior and anterior teeth diagnosed with mid-sized chronic carious lesions. Total etch (etch and rinse) strategy of adhesion was used for both composite resins. The laser treatment was performed in 2 sessions at 48 hours and after 7 days, for both study groups using laser Whitening Lase II (DMC Dental). Mean scores for VAS indices decreased significantly at 48 hours and 7 days, following laser treatment for all the investigated parameters (materials, sex, age) (p [ 0.05).

Longest CCC Single Bond among Neutral Hydrocarbons with a Bond Length beyond 1.8

2018 ◽  
Author(s):  
Yusuke Ishigaki ◽  
Takuya Shimajiri ◽  
Takashi Takeda ◽  
Ryo Katoono ◽  
Takanori Suzuki
Keyword(s):  
Bond Length ◽  
Single Bond

Pyridine-directed carbon-carbon single bond activation: rhodium-catalyzed decarbonylation of aryl and heteroaromatic ketones

2021 ◽  
pp. 153132
Author(s):  
Cole J. Wagner ◽  
Eric A. Salisbury ◽  
Erik J. Schoonover ◽  
Jacob P. VanderRoest ◽  
Jeffrey B. Johnson
Keyword(s):  
Bond Activation ◽  
Single Bond

Recent advance in the C-F bond functionalization of trifluoromethyl-containing compounds

2021 ◽  
Author(s):  
Guobing Yan ◽  
Kaiying Qiu ◽  
Ming Guo
Keyword(s):  
Organic Compounds ◽  
Organic Synthesis ◽  
Single Bond ◽  
Bond Functionalization

The C-F bond is the strongest single bond in organic compounds. It is the most challenging task to study the activation of C-F bond in organic synthesis. Trifluoromethyl-containing compounds, which...

Rh(iii)-Catalyzed Csp2–Csp3 bond alkoxylation of α-indolyl alcohols via C–C σ bond cleavage

2021 ◽  
Author(s):  
Can Yang ◽  
Zhipeng Liu ◽  
Xinwei Hu ◽  
Haisheng Xie ◽  
Huanfeng Jiang ◽  
...  
Keyword(s):  
Bond Cleavage ◽  
Single Bond ◽  
Sigma Bond

A Rh(iii)-catalyzed direct Csp2–Csp3 bond alkoxylation of α-(2-indolyl)alcohols with alcohols has been achieved via C–C sigma bond/C–O single bond switch.

scholarly journals Synthesis of a Carborane-substituted Bis(phosphanido) Cobaltate(I), Ligand Substitution, and Unusual P4 Fragmentation

2021 ◽  
Author(s):  
Peter Coburger ◽  
Julia Leitl ◽  
Daniel Scott ◽  
Gabriele Hierlmeier ◽  
Ilya G. Shenderovich ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Ligand Substitution ◽  
Single Bond ◽  
Heteroleptic Complexes

Oxidative addition of the P‒P single bond of an ortho-carborane-derived 1,2-diphosphetane (1,2-C2(PMes)2B10H10) (Mes = 2,4,6-Me3C6H2) to cobalt(-I) and nickel(0) sources affords the first heteroleptic complexes of a carborane-bridged bis(phosphanido) ligand....

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