Topic
Norbornene
About: Norbornene is a research topic. Over the lifetime, 5628 publications have been published within this topic receiving 104495 citations. The topic is also known as: norbornylene & norcamphene.
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TL;DR: In this paper, the preparation of complexes de cis-cyclooctene and norbornene is described, and the structure of cristalline de AuCl(cis-cycloctene) is described.
40 citations
TL;DR: This work employed an activated norbornene to trap the ortho-palladation intermediate and relay to the meta-position, leading to a meta-selective C-H arylation of fluoroarenes, and suggests that this meta-arylation is initiated by ortho C- H activation and the catalytic cycle is terminated by the C-2 protonation.
Abstract: Fluorine is known to promote ortho-C-H metalation. Based upon this reactivity, we employed an activated norbornene that traps the ortho-palladation intermediate and is then relayed to the meta position, leading to meta-selective C-H arylation of fluoroarenes. Deuterium experiment suggests that this meta-arylation is initiated by ortho C-H activation and the catalytic cycle is terminated by C-2 protonation. A dual-ligand system is crucial for the observed high reactivity and site selectivity. Applying this approach to simple benzene or other arenes also affords arylation products with good yield and site selectivity.
40 citations
TL;DR: A fullerene-rich dendron containing a norbornene unit at the focal point is prepared for ring-opening metathesis polymerization to obtain its linear polymer with a unimodal and narrow molar mass distribution by a progressive addition of catalysts.
39 citations
TL;DR: In this paper, the vinyl addition polymerization of substituted norbornene (NB) monomers, via (t-Bu3P)PdMeCl activated by [Li(OEt2)2.5]B(C6F5)4, is investigated.
Abstract: The vinyl addition polymerization of substituted norbornene (NB) monomers, via (t-Bu3P)PdMeCl activated by [Li(OEt2)2.5]B(C6F5)4, is investigated. NB monomers bearing alkyl, aryl, fluoroaryl, and even hexafluoroisopropanol substituents yield polymers exhibiting monomodal and narrow molecular weight distributions, with molecular weight controlled by reaction time and monomer to initiator ratio, demonstrating the living nature of these polymerizations. These polymers are soluble in common organic solvents and possess excellent thermal stability. Block copolymers are also prepared via sequential monomer addition; these are the first examples of well-defined block copolymers of substituted NB monomers enchained by vinyl addition polymerization.
39 citations
TL;DR: The tetrathioperrhenate anion, ReS4- (1), is shown to form adducts with a variety of alkenes as discussed by the authors, including norbornene and norbornadiene.
Abstract: The tetrathioperrhenate anion, ReS4- (1), is shown to form adducts with a variety of alkenes. The alkene adducts form reversibly, and those of norbornene and norbornadiene were isolated. For norbor...
39 citations