Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Marcia B. France"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 3, Iss 1, p 24 (2007)
Intramolecular carbonyl ene reactions of highly activated enophiles can be catalysed by H-bonding thio-ureas to give tertiary alcohols in high yields without extensive isomerisation side products. An asymmetric variant of this reaction was realised u
Externí odkaz:
https://doaj.org/article/148b177a58664acfa72dcee9a9254706
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 3, Iss 1, p 18 (2007)
A convenient microwave accelerated cross-coupling procedure between aryl chlorides with a range of boronic acids has been developed. An explanation for the low reactivity of highly fluorinated boronic acids in Suzuki coupling is provided.
Externí odkaz:
https://doaj.org/article/14d1ac7689e444aeb51d3ad933df76ae
Publikováno v:
Journal of Chemical Education. 93:206-209
The synthesis of 1,1-diphenylethylene (DPE) via a Grignard reaction, followed by an acid-catalyzed dehydration reaction, yields a mixture of compounds. DPE is a high boiling liquid that cannot be purified using simple distillation. However, it is eas
Publikováno v:
New J. Chem.. 33:466-470
Novel Rh(III) and Ir(III) complexes of a chiral diamine ligand have been synthesised and structurally characterised. Both complexes were formed as a single diastereomeric species with a single configuration at nitrogen. Ir complexes of the chiral dia
Autor:
Matthew L. Clarke, Marcia B. France
Publikováno v:
Tetrahedron. 64:9003-9031
Carbonyl ene reactions are reviewed, highlighting the variants of ene reaction that are readily accomplished, along with more challenging reactions. Both intermolecular, intramolecular and Conia ene reactions are highlighted.
Publikováno v:
Organometallics. 23:2405-2411
Unbridged bis(2-arylindenyl)metallocene complexes, such as bis(2-phenylindenyl)zirconium dichloride (1a), when treated with appropriate activators are active catalyst precursors for the production of elastomeric polypropylene. The proposed mechanism
Publikováno v:
Tetrahedron Letters. 44:9287-9290
Copper(I) bis(oxazoline) species are among the most enantioselective cyclopropanation catalysts that have been reported, although these catalysts generally give low diastereoselectivities. We have observed greatly improved diastereoselectivities usin
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 41:2125-2131
The kinetics of the initiation and propagation of the ring-opening metathesis polymerization of exo,exo-5,6-bis(methoxycarbonyl)-7-oxabicyclo[2.2.1]hept-2-ene catalyzed by Grubbs' catalyst (Cl2(PCy3)2RuCHPh) were measured by ultraviolet–visible and
Autor:
Ian Carpenter, Susan C. Eckelmann, Michael T. Kuntz, José A. Fuentes, Marcia B. France, Matthew L. Clarke
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 41(34)
An improved protocol where a pre-cursor, [Ru(Cl)(2)(NBD)(Py)(2)], is treated with ligands to form [RuCl(2)(bidentate ligand)(diamine)] pre-catalysts for ester hydrogenation is reported. This family of catalysts, as well as a range of ruthenium comple
Publikováno v:
Macromolecules. 26:4742-4747
Ring-opening metathesis polymerization (ROMP) of exo,exo-5,6-bis(methoxymethyl)-1-oxabicyclo[2.2.1]hept-2-ene (3) catalyzed by Ru II (H 2 O) 6 (tos) 2 (tos= p-toluenesulfonate) (1) in the presence of terminal acyclic olefins such as 3-buten-1-ol and