Results 111 to 120 of about 14,073 (324)
A Nonbenzenoid Nanographene Horse Saddle With Four Pentagon–Octagon Pairs
Angewandte Chemie, EarlyView.Horse‐saddle molecule: We report herein the design and synthesis of an unprecedented saddle‐shaped non‐benzenoid Nanographene featuring a fused four‐pair pentagon–octagon core. The horse‐saddle structure of HN1 is determined by single‐crystal X‐ray diffraction.
Qiang Huang +11 more
wiley +2 more sources
Тонкие химические технологии, 2012 Determination of the adsorption characteristics of zinc oxide and shungite with respect to benzene vapor adsorption was carried out by the BET method. The specific surface area was calculated, the curves of pore volumes distribution according to their ...
E. A. Astakhova +3 more
doaj
A FORCE-FIELD MODEL FOR THE TRANSITION STRUCTURES OF INTRAMOLECULAR NITRILE OXIDE CYCLOADDITIONS
, 1992 A force field model for nitrile oxide cycloadditions accounts for observed diastereoselectivities in inter- and intramolecular reactions controlled by steric ...
Y. WU, F. BROWN, L. RAIMONDI, K. HOUK
core +1 more source
Advanced Energy Materials, EarlyView.The role of each Mn site in the Na3‐xMn[Mn(CN)6]·zH2O compounds’ redox activity was investigated using a combined experimental–computational approach, which shows that only the low‐spin Mn‐C site undergoes redox changes (Mn1+ to Mn4+), while high‐spin Mn‐N remains unchanged. The study confirms the presence of the Mn1+ intermediate and newly reveals its
Zhenying Li +11 more
wiley +1 more source
eXPRESS Polymer Letters, 2014 The presence of carboxyl groups in carboxylated nitrile butadiene rubber (XNBR) allows it to be cured with different agents. This study considers the effect of crosslinking of XNBR by magnesium aluminum layered double hydroxide (MgAl-LDH), known also as ...
A. Laskowska +5 more
doaj +1 more source
Everything you ever wanted to know about primary amines, secondary amines, tertiary amines, diamines. Quaternary ammonium chlorides, amine acetates, nitriles, amides, ethoxylated amines, amine oxides, specialty chemicals, fatty acid esters and fatty acids. [PDF]
, 1979 openalex +1 more source
AgriFood: Journal of Agricultural Products for Food, EarlyView.Through HPLC–MS/MS analysis and multivariate statistics, raphani semen (RS) varieties with high functional components were screened. The white raphani semen “Xuebawang” was identified as ideal for further study due to its high bioactive content: glucoraphenin (9010.27 mg/100 g), glucoraphanin (1027.76 mg/100 g), sulforaphane (66.14 mg/100 g), and ...
Yonghua Li +10 more
wiley +1 more source
Photocatalytic Transfer Hydrogenation Using Plastic Hydrolysates as Hydrogen Donor
Angewandte Chemie, EarlyView.Plastic waste is transformed into functional amines via solar‐driven transfer hydrogenation. Soluble monomers from acid hydrolysis of waste polymers serve as a hydrogen (electron/proton)donors in the selective reduction of nitroarenes using a visible light active photocatalyst consisting of cobalt promoted molybdenum disulfide integrated in cyanamide ...
Papa K. Kwarteng +2 more
wiley +2 more sources
Pyridine C─N Transposition via Cycloaddition–Cycloreversion
Angewandte Chemie, EarlyView.Transposition of pyridine nitrogen from the 4‐ to the 3‐position is described using two open and shut sequences: a nucleophile addition ring‐open ring‐closure, followed by a nitrile Diels–Alder cycloaddition cycloreversion. The nitrogen swap is particularly effective for tertiary alkyl substituents, transforming easily accessible para‐alkylated ...
Aífe Conboy, Michael F. Greaney
wiley +2 more sources
Angewandte Chemie, EarlyView.Azidoborylene photolysis results in the isolation of a reactive C═B═N═C heterocumulene bearing an ambiphilic boron centre. Addition of 3O2 to this species results in the clean conversion to a unique example of a dioxaborirane. ABSTRACT Oxidation of the formal boron(0) complex MeCAAC2B in the presence of tetrabutylammonium azide leads to the formation ...
Hayley King +4 more
wiley +2 more sources