Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kimitaka Nakama"'
Publikováno v:
Chemistry - A European Journal. 9:6145-6154
A series of novel ketimines with intrinsic protecting group anchoring was synthesized and allowed to react with various silylketene acetals in the presence of 5-10 mol % of a chiral Zn(OTf)(2)-(R,R)-Ph-pybox-aqua complex. The corresponding optically
Publikováno v:
Tetrahedron Letters. 43:829-832
Conjugate addition reactions of aldoximes to 3-crotonoyl-2-oxazolidinone and to 1-crotonoyl-3-phenyl-2-imidazolidinone are accelerated in the presence of a catalytic amount of Lewis acids. Among the chiral metal complexes with DBFOX/Ph, BOX/Bu- t , B
Publikováno v:
Tetrahedron Letters. 42:6719-6722
In the presence of Lewis acid catalysts, aldoximes react with α,β-unsaturated carbonyl compounds at room temperature to give N-alkylnitrones in good yields. Combination of two Lewis acid catalysts, zinc(II) iodide/boron trifluoride etherate (50 mol
Publikováno v:
ChemInform. 32
In the presence of Lewis acid catalysts, aldoximes react with α,β-unsaturated carbonyl compounds at room temperature to give N-alkylnitrones in good yields. Combination of two Lewis acid catalysts, zinc(II) iodide/boron trifluoride etherate (50 mol
Publikováno v:
ChemInform. 33
Conjugate addition reactions of aldoximes to 3-crotonoyl-2-oxazolidinone and to 1-crotonoyl-3-phenyl-2-imidazolidinone are accelerated in the presence of a catalytic amount of Lewis acids. Among the chiral metal complexes with DBFOX/Ph, BOX/Bu- t , B
Autor:
Kimitaka Nakama, Louis Fensterbank, Célia Brancour, Anne-Lise Dhimane, Christophe Blaszykowski, Youssef Harrak, Max Malacria
Publikováno v:
ChemInform. 38
1,5-Enynes are highly reactive under PtCl 2 catalysis and give a range of [3.1.0] bicyclic skeletons. The scope and limitations of this process are presented. Regioisomeric keto derivatives are obtained depending upon the nature of the oxygenated sub
Publikováno v:
ChemInform. 35
Publikováno v:
Chemistry - A European Journal; 12/15/2003, Vol. 9 Issue 24, p6145-6154, 10p