Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Kande K. D. Amarasinghe"'
Autor:
Kande K. D. Amarasinghe, Sanjoy K. Chowdhury, Jeongbeob Seo, John Montgomery, Alexey V. Savchenko, Eric Oblinger
Publikováno v:
Pure and Applied Chemistry. 74:129-133
Substrates that possess an a,b-unsaturated carbonyl tethered to an alkyne have been utilized in a variety of nickel-catalyzed processes. Depending on ligand structure, reagent structure, reaction conditions, and workup conditions, several different m
Publikováno v:
Organic Letters. 4:1743-1745
[reaction: see text] 1,3-Dienes were prepared by a variety of nickel-catalyzed couplings and cyclization processes. Intermolecular or partially intramolecular couplings of alkynes, vinylzirconium reagents, and either aldehydes or enones efficiently p
Publikováno v:
Organometallics. 20:370-372
Two metallacycles derived from the oxidative cyclization of nickel(0) with an alkynyl enal have been isolated and fully characterized. The metallacycles obtained possess an η1 nickel O-enolate motif within the metallacyclic framework.
Publikováno v:
ChemInform. 33
1,3-Dienes were prepared by a variety of nickel-catalyzed couplings and cyclization processes. Intermolecular or partially intramolecular couplings of alkynes, vinylzirconium reagents, and either aldehydes or enones efficiently proceeded to generate
Autor:
Kande K. D. Amarasinghe, Alexey V. Savchenko, Sanjoy K. Chowdhury, Jeongbeob Seo, John Montgomery, Eric Oblinger
Publikováno v:
ChemInform. 33
Substrates that possess an α,β-unsaturated carbonyl tethered to an alkyne have been utilized in a variety of nickel-catalyzed processes. Depending on ligand structure, reagent structure, reaction conditions, and workup conditions, several different
Publikováno v:
ChemInform. 33
An enantioselective total synthesis of (+)-testudinariol A was completed. A new nickel-catalyzed allenyl aldehyde cyclization was developed in the approach. In addition, an asymmetric anti aldol reaction and a two-directional oxocarbenium ion/vinyl s
Autor:
Kande K. D. Amarasinghe, et al. et al.
Publikováno v:
ChemInform. 37
Autor:
Kande K D, Amarasinghe, Artem G, Evdokimov, Artem G, Evidokimov, Kevin, Xu, Cynthia M, Clark, Matthew B, Maier, Anil, Srivastava, Anny-Odile, Colson, Gina S, Gerwe, George E, Stake, Brian W, Howard, Matthew E, Pokross, Jeffrey L, Gray, Kevin G, Peters
Publikováno v:
Bioorganicmedicinal chemistry letters. 16(16)
The sulfamic acid phosphotyrosine mimetic was coupled with a previously known malonate template to obtain highly selective and potent inhibitors of HPTPbeta. Potentially hydrolyzable malonate ester functionalities were replaced with 1,2,4-oxadiazoles
Autor:
Andy R. L. Skauge, Mary Jane Heeg, Gireesh M. Mahandru, Kande K. D. Amarasinghe, Sanjoy K. Chowdhury, John Montgomery
Publikováno v:
Journal of the American Chemical Society. 125(44)
A new strategy for effecting cascade cyclization processes using nickel enolates has been developed. Nickel enolates may be cleanly generated by the oxidative cyclization of an enal and alkyne with Ni(0), and the resulting enolate may be functionaliz
Publikováno v:
Organic letters. 5(20)
[structure: see text] The first total synthesis and stereochemical definition of isodomoic acid G has been achieved. The key nickel-catalyzed coupling of an alkynyl enone with an alkenylzirconium allows formation of the pyrrolidine ring and most of t