Results 71 to 80 of about 4,393 (185)
Template-Directed Olefin Cross Metathesis
Organic Letters, 2005 [reaction: see text] A template containing two secondary dialkylammonium ion recognition sites for encirclement by olefin-bearing dibenzo[24]crown-8 derivatives has been used to promote olefin cross metatheses with ruthenium-alkylidene catalysts.
Stuart J, Cantrill +8 more
openaire +4 more sources
Angewandte Chemie International Edition, Volume 65, Issue 13, 23 March 2026.Dimesitylphosphide as a heavier congener of established amide ligands for charge‐transfer copper(I) complexes leads to bathochromic shift of the emission by up to 3645 cm−1 into the orange‐red (solid, polymer films) and even NIR (solution). The thermally activated delayed fluorescence exhibits high dissymmetry factors of glum = 10−2 in polystyrene.
Paul C. Ruer +2 more
wiley +1 more source
Olefin metathesis in multiblock copolymer synthesis
Beilstein Journal of Organic Chemistry, 2019 Multiblock copolymers constitute a basis for an emerging class of nanomaterials that combine various functional properties with durability and enhanced mechanical characteristics. Our mini-review addresses synthetic approaches to the design of multiblock
Maria L. Gringolts +3 more
doaj +1 more source
trans-Ethylenedi-p-phenylene diacetate
Acta Crystallographica Section E, 2009 The centrosymmetric title compound, C18H26O4, was prepared in high yield from 4-acetoxystyrene via Ru-catalysed homo-olefin metathesis. Exclusive formation of the E-configurated isomer was observed.
Stefanie Ritter +3 more
doaj +1 more source
Oil & Gas Science and Technology, 2016 Tungsten-hexa-methyl readily reacts with B(C6F5)3 in dichloromethane and generates the corresponding well-defined cationic tungsten-penta-methyl complex which was identified precisely by 1H NMR, 13C NMR, 1H-13C NMR correlation spectroscopy.
Dey Raju +7 more
doaj +1 more source
Calixarene-based molecular capsule from olefin metathesis
Acta Crystallographica Section E, 2013 The reaction of tetrakis(allyloxy)calix[4]arene with the first-generation Grubbs catalyst, followed by catalytic hydrogenation, gave the novel bis-calixarene 15,20,46,51,64,69,74,79-octaoxatridecacyclo[32.28.8.83,28.113,53.122,44.09,14.021,26.038,70.040 ...
Shimelis T. Hailu +3 more
doaj +1 more source
trans-1,2-Bis(3,5-dimethoxyphenyl)ethene
Acta Crystallographica Section E, 2009 The title compound, C18H20O4, was prepared in high yield from 3,5-dimethoxystyrene via a Ru-catalysed homo-olefin metathesis. Exclusive formation of the E-configurated isomer was observed. Interestingly, one symmetric unit contains two molecules adopting
Stefanie Ritter +3 more
doaj +1 more source
Ring Expansion via Olefin Metathesis
Journal of the American Chemical Society, 2002 Various macrocycles were prepared in one step by a novel ring-expansion method using olefin metathesis.
Lee, Choon Woo +2 more
openaire +3 more sources
Chemistry – A European Journal, Volume 32, Issue 10, 9 March 2026.One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Eugene Kim +4 more
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2016 A straightforward synthesis utilizing the ring-opening metathesis polymerization (ROMP) reaction is described for acid-triggered N,O-chelating ruthenium-based pre-catalysts bearing one or two 8-quinolinolate ligands.
Julia Wappel +4 more
doaj +1 more source