Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hua-Meng Yang"'
Autor:
Zhen-Yu Jiang, Hua-Meng Yang, Ya-Dong Ju, Li Li, Meng-Xian Luo, Guo-Qiao Lai, Jian-Xiong Jiang, Li-Wen Xu
Publikováno v:
Molecules, Vol 15, Iss 4, Pp 2551-2563 (2010)
To map out the efficient organocatalyst requirements in the Michael addition of 1,3-dicarbonyl indane compounds to nitrostyrenes, a dozen different amino organocatalysts containing a p-toluenesulfonyl group (Ts) have been evaluated; excellent enantio
Externí odkaz:
https://doaj.org/article/d5b8221a64364ad5a3ba6f07d921df46
Publikováno v:
Organic Letters. 13:6508-6511
The study showed that a combination of an achiral silicon-based Lewis acid and chiral Lewis base, such as iodotrimethylsilane (TMSI) and cinchonine, generated a highly enantioselective catalyst system under solvent-free conditions which gave aromatic
Publikováno v:
European Journal of Organic Chemistry. 2011:5039-5046
2 -Hydroxy-1,1 -binaphthalene-2-(arylmethanol) (Ar-BINMOLs), a family of new 1,1 -binaphthalene-2,2 -diol derivatives, prepared by a [1,2]-Wittig rearrangement, are introduced as new chiral molecules for the study of the modes of supramolecular aggre
Publikováno v:
European Journal of Organic Chemistry. 2010:4986-4990
A series of chiral organocatalysts and Lewis acids have been evaluated in the Lewis acid/organocatalysts-based cooperative catalytic Biginelli reaction, which resulted in the determination of a novel cooperative Lewis acid/primary amine catalyst syst
Publikováno v:
Tetrahedron Letters. 51:3836-3839
The LBAs (Lewis acid-assisted Bronsted acid catalysis) is proposed as possible mechanistic process in the simple FeCl3-catalyzed Michael reactions of chalcones with active methylene compounds in organic solvents. And iron salts were found to be effec
Publikováno v:
ChemInform. 44
A combined catalyst system of a cinchonidine-derived primary amine and triphenylphosphine (CDNH 2 /PPh 3 ) exhibited high catalytic performance in the Michael reaction of aldehydes with maleimides, thereby affording the corresponding functionalized a
Publikováno v:
Chemistry, an Asian journal. 8(6)
A combined catalyst system of a cinchonidine-derived primary amine and triphenylphosphine (CDNH 2 /PPh 3 ) exhibited high catalytic performance in the Michael reaction of aldehydes with maleimides, thereby affording the corresponding functionalized a
Publikováno v:
ChemInform. 43
The reaction of anilines with chalcones is best catalyzed by cinchonine in combination with TmsI or TmsCl.
Publikováno v:
ChemInform. 42
A series of chiral organocatalysts and Lewis acids have been evaluated in the Lewis acid/organocatalysts-based cooperative catalytic Biginelli reaction, which resulted in the determination of a novel cooperative Lewis acid/primary amine catalyst syst
Publikováno v:
ChemInform. 41
The reaction of 1,3-dicarbonyl compounds with chalcones is investigated in the presence of FeCl3.