29627-62-1Relevant academic research and scientific papers
Absolute Helical Arrangement of Sulfonamide in the Crystal
Azumaya, Isao,Kato, Takako,Okamoto, Iwao,Yamasaki, Ryu,Tanatani, Aya,Yamaguchi, Kentaro,Kagechika, Hiroyuki,Takayanagi, Hiroaki
, p. 3939 - 3942 (2003)
(Matrix presented) 1,2-Bis(N-benzenesulfonyl-N-methylamino)benzene (2), which has no fixed asymmetric element, was crystallized from ethyl acetate as chiral crystals belonging to space group P41212 (No. 92) or P4321/
Compound and preparation method thereof, and application of compound as n-type dopant
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, (2020/03/09)
The invention provides a compound and a preparation method thereof, and application of the compound as an n-type dopant. The structural formula of the compound is shown as a formula (I) which is described in the specification. The compound can be used as
BORYLIMIDE CATALYSTS
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Paragraph 0081, (2020/06/10)
The present invention provides a borylimide catalyst and further relates to compositions comprising the borylimide catalysts and processes for the polymerisation of olefins (e.g. ethylene) using the borylimide catalysts or the compositions comprising the
Molecular Porous Photosystems Tailored for Long-Term Photocatalytic CO2 Reduction
Alves-Favaro, Marcelo,Canivet, Jér?me,Duguet, Mathis,Farrusseng, David,Ghosh, Ashta C.,Lorentz, Chantal,Mellot-Draznieks, Caroline,Mohr, Yorck,Palkovits, Regina,Perrinet, Quentin,Quadrelli, Elsje Alessandra,Wisser, Florian M.,de Waele, Vincent
supporting information, p. 5116 - 5122 (2020/02/20)
The molecular-level structuration of two full photosystems into conjugated porous organic polymers is reported. The strategy of heterogenization gives rise to photosystems which are still fully active after 4 days of continuous illumination. Those materials catalyze the carbon dioxide photoreduction driven by visible light to produce up to three grams of formate per gram of catalyst. The covalent tethering of the two active sites into a single framework is shown to play a key role in the visible light activation of the catalyst. The unprecedented long-term efficiency arises from an optimal photoinduced electron transfer from the light harvesting moiety to the catalytic site as anticipated by quantum mechanical calculations and evidenced by in situ ultrafast time-resolved spectroscopy.
Carbon–carbon bond formation via benzoyl umpolung attained by photoinduced electron-transfer with benzimidazolines
Igarashi, Tomohito,Tayama, Eiji,Iwamoto, Hajime,Hasegawa, Eietsu
supporting information, p. 6874 - 6877 (2019/04/10)
A photoreaction between benzoyl compounds, such as benzoylformate derivatives, and 2-(p-anisyl)-1,3-dimethylbenzimidazoline in the presence of allyl bromide was found to give various allylated alcohols. In the reaction of benzoylformates, α-hydroxy ester enolates, for which the negative charge occurs on the carbonyl carbon of benzoyl (umpolung reactivity), are proposed to be generated as intermediates by electron-transfer from benzimidazolines to the photoexcited benzoylformates; these species react with allyl bromide to produce α-allyl-α-hydroxy esters.
Sustainable synthesis of diverse privileged heterocycles by palladium-catalyzed aerobic oxidative isocyanide insertion
Vlaar, Tj?stil,Cioc, Razvan C.,Mampuys, Pieter,Maes, Bert U. W.,Orru, Romano V. A.,Ruijter, Eelco
supporting information, p. 13058 - 13061 (2013/02/26)
Heterocycles containing a guanidine moiety are of great importance in medicinal chemistry (Scheme 1).[1] As a result, several methods for the synthesis of these "privileged scaffolds" have been reported.[2, 3] Classical approaches, such as the addition of diamines to isothiocyanates followed by condensation and the coupling of diamines with cyanogen bromide,[2, 4] have some clear limitations, such as the availability and toxicity of reagents. Moreover, these procedures suffer from poor atom and/or step efficiency, thus making them unattractive from a sustainability point of view.
Contrastive photoreduction pathways of benzophenones governed by regiospecific deprotonation of imidazoline radical cations and additive effects
Hasegawa, Eietsu,Seida, Takayuki,Chiba, Naoki,Takahashi, Tomoya,Ikeda, Hiroshi
, p. 9632 - 9635 (2007/10/03)
In the photoreaction of benzophenones with 1,3-dimethyl-2- phenylbenzimidazoline (DMPBI), benzhydrols were major products. Addition of H2O accelerated the reaction with no change in the product distribution, while AcOH, PhOH, and metal salts such as LiClO4 and Mg(ClO4)2 were effective additives to produce benzpinacols. In contrast, benzpinacols were exclusively formed regardless of the solvent and the additive in the reactions with 2-(o-hydroxyphenyl)-1,3- dimethylbenzimidazoline (o-HPDMBI). These observations are consistent with the hypothesis that DMPBI.+ donates a proton at the C2 position to the benzophenone ketyl radicals while o-HPDMBI.+ donates a phenol proton.
Synthesis and Autoxidation of 1,3-Dialkyl-2-arylbenzimidazolines
Reddy, A. Pandu Ranga,Veeranagaiah, V.,Ratnam, C. V.
, p. 367 - 371 (2007/10/02)
During the attempted studies of the elimination reactions of 1,3-dimethyl-(I, R = CH3)- and 1,3-diethyl-(I, R = C2H5)-2-arylbenzimidazolines, a novel rearrangement has been observed to take place resulting in substituted amides by autoxidative ring-opening.
