137658-83-4Relevant academic research and scientific papers
Single-Molecule Investigation of Initiation Dynamics of an Organometallic Catalyst
Ng, James D.,Upadhyay, Sunil P.,Marquard, Angela N.,Lupo, Katherine M.,Hinton, Daniel A.,Padilla, Nicolas A.,Bates, Desiree M.,Goldsmith, Randall H.
, p. 3876 - 3883 (2016)
The action of molecular catalysts comprises multiple microscopic kinetic steps whose nature is of central importance in determining catalyst activity and selectivity. Single-molecule microscopy enables the direct examination of these steps, including eluc
Fullerene-templated synthesis of a cyclic porphyrin trimer using olefin metathesis
Mulholland, Amy R.,Woodward, Clint P.,Langford, Steven J.
, p. 1494 - 1496 (2011)
An olefination approach to the construction of covalently linked cyclic metalloporphyrin trimers is presented using fullerenes such as C60 or C70 as a template. Yields of the trimer approach 60%. In the absence of a template, the maj
Controllable Isomerization of Alkenes by Dual Visible-Light-Cobalt Catalysis
Meng, Qing-Yuan,Schirmer, Tobias E.,Katou, Kousuke,K?nig, Burkhard
supporting information, p. 5723 - 5728 (2019/04/03)
We report herein that thermodynamic and kinetic isomerization of alkenes can be accomplished by the combination of visible light with Co catalysis. Utilizing Xantphos as the ligand, the most stable isomers are obtained, while isomerizing terminal alkenes over one position can be selectively controlled by using DPEphos as the ligand. The presence of the donor–acceptor dye 4CzIPN accelerates the reaction further. Transformation of exocyclic alkenes into the corresponding endocyclic products could be efficiently realized by using 4CzIPN and Co(acac)2 in the absence of any additional ligands. Spectroscopic and spectroelectrochemical investigations indicate CoI being involved in the generation of a Co hydride, which subsequently adds to alkenes initiating the isomerization.
Chemo-, regio-, and stereoselective iron-catalysed hydroboration of alkenes and alkynes
Greenhalgh, Mark D.,Thomas, Stephen P.
supporting information, p. 11230 - 11232 (2013/11/19)
The highly chemo-, regio-, and stereoselective synthesis of alkyl- and vinyl boronic esters with good functional group tolerance has been developed using in situ activation of a bench-stable iron(ii) pre-catalyst and pinacolborane (16 examples, 45-95% yield, TOF up to 30000 mol h-1). The first iron-catalysed alkene hydrogermylation is also reported.
Template-directed assembly of a macrocyclic porphyrin tetramer using olefin metathesis
Bakker, Jacinta M.,Langford, Steven J.,Latter, Melissa J.,Lee, Katrina A.,Woodward, Clint P.
, p. 757 - 761 (2007/10/03)
A macrocyclic porphyrin tetramer was prepared in 52% yield by olefin metathesis employing a 5,10,15,20-tetrapyridylporphyrin template. CSIRO 2005.
Cyclosiloxanes containing mesogenic side groups
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, (2008/06/13)
The present invention relates to cyclic siloxanes which have at least one group of formula (1) bonded to a silicon atom in which x is an integer having a value of at least 2, preferably having a value of from 2 to 10, R" is a chemical bond or a divalent r
