Results 31 to 40 of about 20,876 (282)
Factors affecting the extent of branching in fischertropsch synthesis products with iron-based catalysts [PDF]
, 1989 Branched products are mainly formed during secondary isomerization reactions, and not in the main synthesis reaction itself. The extent of branching is a function of the catalyst formulation. High acidity and a low hydrogenation strength of the catalyst (
Snel, R.
core +2 more sources
Journal of the American Chemical Society, 2022 DNA-encoded libraries have proven their tremendous value in the identification of new lead compounds for drug discovery. To access libraries in new chemical space, many methods have emerged to transpose traditional mol-scale reactivity to nmol-scale, on ...
Expédite Yen-Pon +7 more
semanticscholar +1 more source
Insertion of [1.1.1]propellane into aromatic disulfides
Beilstein Journal of Organic Chemistry, 2019 Herein we present the synthesis of symmetrically and unsymmetrically substituted 1,3-bissulfanylbicyclo[1.1.1]pentanes from disulfides and [1.1.1]propellane.
Robin M. Bär +4 more
doaj +1 more source
Organocatalytic Vinyl and Friedel−Crafts Alkylations with Trifluoroborate Salts [PDF]
, 2007 Herein we report the first use of vinyl and heteroaryl trifluoroborate salts as viable substrates for amine-catalyzed conjugate additions. The application of LUMO-lowering iminium catalysis has enabled the highly regio- and enantioselective 1,4-addition ...
Lee, Sandra, MacMillan, David W. C.
core +1 more source
Bicyclo[1.1.1]pentane Embedded in Porphyrinoids** [PDF]
Angewandte Chemie, 2023 AbstractWe report a two‐step approach to obtain synthetically versatile bicyclo[1.1.1]pentane (BCP) derivatives using Grignard reagents. This method allows the incorporation of BCP units in tetrapyrrolic macrocycles and the synthesis of a new class of calix[4]pyrrole analogues by replacing two bridging methylene groups with two BCP units.
Nitika Grover +5 more
openaire +4 more sources
Twofold Radical-Based Synthesis of N,C-Difunctionalized Bicyclo[1.1.1]pentanes.
Journal of the American Chemical Society, 2021 Bicyclo[1.1.1]pentylamines (BCPAs) are of growing importance to the pharmaceutical industry as sp3-rich bioisosteres of anilines and N-tert-butyl groups.
Helena D. Pickford +5 more
semanticscholar +1 more source
Photochemical Formal (4 + 2)-Cycloaddition of Imine-Substituted Bicyclo[1.1.1]pentanes and Alkenes.
Journal of the American Chemical Society, 2021 Amines containing bridged bicyclic carbon skeletons are desirable building blocks for medicinal chemistry. Herein, we report the conversion of bicyclo[1.1.1]pentan-1-amines to a wide range of polysubstituted bicyclo[3.1.1]heptan-1-amines through a ...
Alexander S. Harmata +3 more
semanticscholar +1 more source
Emission characteristics of nonmethane hydrocarbons from private cars and taxis at different driving speeds in Hong Kong [PDF]
, 2011 Vehicular emissions are the major sources of a number of air pollutants including nonmethane hydrocarbons (NMHCs) in urban area. The emission composition and emission factors of NMHCs from vehicles are currently lacking in Hong Kong.
Blake, DR +4 more
core +1 more source
Angewandte Chemie, 2021 Strategies commonly used for the synthesis of functionalised bicyclo[1.1.1]pentanes (BCP) rely on the reaction of [1.1.1]propellane with anionic or radical intermediates.
S. Livesley +6 more
semanticscholar +1 more source
Strain-release transformations of bicyclo[1.1.0]butanes and [1.1.1]propellanes
Tetrahedron ChemBicyclo[1.1.0]butanes (BCBs) and [1.1.1]propellanes (tricyclo[1.1.1.01,3]pentanes, TCPs) are structurally unique compounds with different chemical properties.
Qian-Qian Hu +4 more
doaj +1 more source