Results 31 to 40 of about 45,887 (257)
Reactions of cyclobutenones with nucleophilic reagents via vinylketen intermediates [PDF]
, 1976 While strong nucleophiles add to the endocyclic double bond of cyclobutenones to yield cyclobutanones, weaker nucleophiles (e.g. alcohols, aniline) interact with the vinylketens which are thermally or photochemically generated from cyclobutenones; the ...
Huisgen, Rolf, Mayr, Herbert
core +1 more source
A wave-mechanical treatment of the Mills-Nixon effect [PDF]
, 1935 The Mills-Nixon effect has been examined by a very simple wave-mechanical treatment. This has led to the conclusion that the effect of saturated side rings upon the ratio of the coefficients of the wave-functions of the two Kekulé structures is ...
Pauling, L., Sutton, L. E.
core +1 more source
Two-stage steam explosion pretreatment of softwood with 2-naphthol as carbocation scavenger
Biotechnology for Biofuels, 2019 Background Lignocellulosic biomass is considered as a potential source for sustainable biofuels. In the conversion process, a pretreatment step is necessary in order to overcome the biomass recalcitrance and allow for sufficient fermentable sugar yields
Christoph-Maximilian Seidel +4 more
doaj +1 more source
, 2015 A sensitivity analysis in an observational study assesses the robustness of significant findings to unmeasured confounding. While sensitivity analyses in matched observational studies have been well addressed when there is a single outcome variable ...
Fogarty, Colin B., Small, Dylan S.
core +2 more sources
Development of covalent triazine frameworks as heterogeneous catalytic supports [PDF]
, 2019 Covalent triazine frameworks (CTFs) are established as an emerging class of porous organic polymers with remarkable features such as large surface area and permanent porosity, high thermal and chemical stability, and convenient functionalization that ...
Krishnaraj, Chidharth +3 more
core +1 more source
Four cytotoxic N4-substituted thiosemicarbazones derived from 2-hydroxynaphthalene-1-carboxaldehyde [PDF]
, 2003 The X-ray crystal structures are reported of four novel and potentially O,N,S-tridentate donor ligands that demonstrate antitumour activity.
Bernhardt, P. V. +3 more
core +1 more source
, 2003 We report the observation of sum-frequency signals that depend linearly on an applied electrostatic field and that change sign with the handedness of an optically active solution. This recently predicted chiral electro-optic effect exists in the electric-
A. D. Buckingham +6 more
core +1 more source
High-Performance Liquid Chromatographic Determination of Naphtholsulfonic Acids
CHIMIA, 1979 A HPLC-method for the quantitative analysis of mixed solutions of 2-naphthol-5,7-disulfonic acid and 2-naphthol-7-sulfonic acid was developed. A complete reproducible separation of these compounds in a very short time could be reached by using a ...
Luca Rossinelli +2 more
doaj +1 more source
Advanced Healthcare Materials, EarlyView.This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni +15 more
wiley +1 more source
Acid Catalyzed Formation of C–C and C–S Bonds via Excited State Proton Transfer
Molecules, 2019 The behavior of 2-naphthol and 7-bromo-2-naphthol as organic photoacids are exploited in organic synthesis for the preparation of benzyl sulfides (using a trichloroacetimidate derivative as the starting substrate) and polycyclic amines via acid catalyzed
Alessandro Strada +3 more
doaj +1 more source