Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kimberly A. Seibert"'
Autor:
Khalil A. Abboud, Marie E. Krafft, Kimberly A. Seibert, James A. Wright, John W. Cran, Chitaru Hirosawa, Thomas F. N. Haxell
Publikováno v:
Tetrahedron. 67:9922-9943
From the initial development of a homologous Morita–Baylis–Hillman reaction utilizing epoxides as electrophiles, the method was expanded to enable the exclusively organocatalyzed intramolecular allylation of enones and to develop the intramolecul
Publikováno v:
Synlett. 2010:2583-2588
The Morita―Baylis―Hillman alkylation reaction with unsaturated thioesters is described. Five- and six-membered rings are formed with ease and in excellent yields. The method is high yielding with either stoichiometric or catalytic amounts of trib
Publikováno v:
Organic Letters. 11:5646-5648
Treatment of diethoxycarbonyl hydrazine derivatives with methyl bromoacetate/Cs(2)CO(3)/MeCN at 50 degrees C followed by heating to 80 degrees C resulted in N-N' bond cleavage to the corresponding carbamates.
Autor:
Kimberly A. Seibert, Marie E. Krafft
Publikováno v:
Synlett. 2006:3334-3336
Using a catalytic amount oftrialkylphosphines, alkyl halides undergo efficient intramolecular Morita-Baylis-Hillman cyclization.
Publikováno v:
ChemInform. 42
Publikováno v:
ChemInform. 41
Treatment of diethoxycarbonyl hydrazine derivatives with methyl bromoacetate/Cs(2)CO(3)/MeCN at 50 degrees C followed by heating to 80 degrees C resulted in N-N' bond cleavage to the corresponding carbamates.
Autor:
Kimberly A. Seibert, Marie E. Krafft
Publikováno v:
ChemInform. 38
Using a catalytic amount oftrialkylphosphines, alkyl halides undergo efficient intramolecular Morita-Baylis-Hillman cyclization.
Publikováno v:
Journal of the American Chemical Society. 128:4174-4175
An intermediate phosphonium salt has never been isolated from the Morita-Baylis-Hillman (MBH) reaction. Due to the weakly basic counterion produced in the MBH alkylation and allylation reactions, the reaction can be stopped after electrophilic attack
Publikováno v:
Chemical Communications. :5772
sp3 Hybridized electrophiles, never before used in the organomediated Morita–Baylis–Hillman reaction, now facilitate the formation of five- and six-membered enone cycloalkylation products.
Publikováno v:
Chemical Communications; Nov2005, Vol. 2005 Issue 46, p5772-5774, 3p