Results 21 to 30 of about 48,013 (232)
Fragment Coupling and the Construction of Quaternary Carbons Using Tertiary Radicals Generated From tert-Alkyl N-Phthalimidoyl Oxalates By Visible-Light Photocatalysis. [PDF]
, 2015 The coupling of tertiary carbon radicals with alkene acceptors is an underdeveloped strategy for uniting complex carbon fragments and forming new quaternary carbons.
Lackner, Gregory L +3 more
core +3 more sources
Acta Crystallographica Section E, 2011 The title compound, [Pd2(C13H8N2O2)(C15H11O2)2], crystallized from a mixture of ethanol and n-hexanes. The structure is the first example of β-diketonate in a dianionic κ2C-coordination complex containing a PdII—PdII bond ...
Simona Maggini, Peter S. White
doaj +1 more source
Isolating High Antimicrobial Ability Lignin From Bamboo Kraft Lignin by Organosolv Fractionation
Frontiers in Bioengineering and Biotechnology, 2021 Lignin from different biomasses possess biological antioxidation and antimicrobial activities, which depend on the number of functional groups and the molecular weight of lignin.
Jinyan Yun +9 more
doaj +1 more source
A–C Estrogens as Potent and Selective Estrogen Receptor-Beta Agonists (SERBAs) to Enhance Memory Consolidation under Low-Estrogen Conditions [PDF]
, 2018 Estrogen receptor-beta (ERβ) is a drug target for memory consolidation in postmenopausal women. Herein is reported a series of potent and selective ERβ agonists (SERBAs) with in vivo efficacy that are A–C estrogens, lacking the B and D estrogen rings ...
Donaldson, William A. +12 more
core +4 more sources
Hydrogenative Cyclopropanation and Hydrogenative Metathesis
, 2019 The unusual geminal hydrogenation of a propargyl alcohol derivative with [CpXRuCl] as the catalyst entails formation of pianostool ruthenium carbenes in the first place; these reactive intermediates can be intercepted with tethered alkenes to give either
Biberger, T. +3 more
core +1 more source
Three-coordinate iron(II) expanded ring N-heterocyclic carbene complexes [PDF]
, 2016 A sterically demanding seven-membered expanded ring N-heterocyclic carbene (NHC) ligand allows access to rare examples of three-coordinate iron(II)-NHC complexes incorporating only halide coligands of the general formula [Fe(NHC)X 2 ] (NHC = 7-DiPP; X ...
David J. Evans +6 more
core +4 more sources
Remote functionalization by tandem radical chain reactions [PDF]
, 1997 Normal radical relay chlorination of cholestan-3α-ol directed by an attached m-iodobenzoate ester group affords a 9α-chloro steroid, but when the same reaction is conducted in the presence of an excess of CBr4 the product is a 9α-bromo steroid ...
Wiedenfeld, David
core +1 more source
Hexane-1,6-diammonium dinitrate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2009 The hexane-1,6-diammonium cation of the title compound, C(6)H(18)N(2) (2+)·2NO(3) (-), lies across a crystallographic inversion centre and shows significant deviation from planarity in the hydro-carbon chain. This is evident from the torsion angle of -64.0°(2) along the N-C-C-C bond and thse torsion angle of -67.1°(2) along the C-C-C-C bonds.
Gert J. Kruger, Charmaine van Blerk
openaire +3 more sources
SPECTRUM AND KINETICS OF DIBROMDIBENZOTIOFEN PHOSPHORESCENCE IN N-HEXANES AT 77 K
Наука. Инновации. Технологии, 2022 Spectrum and kinetics of dibromdibenzotiofen phosphorescence in n- hexanes at 77 K have been studied. It has been shown that the visible multiplet structure of phosphorescence spectrum is determined of the superposition of spectra emitted by different ...
Natal’ya Vladimirovna Zhdanova +1 more
doaj
Molecules, 2007 The asymmetric syntheses of two new spirolactones prepared in optically pure form from L-3-nitrotyrosine are described. The key step, an oxidative spiroannulation, was carried out on the optically active phenols 11a and 11b and afforded the new ...
Thomas W. Scully +3 more
doaj +1 more source