Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Hai-le Zhang"'
Publikováno v:
Molecules, Vol 12, Iss 3, Pp 297-303 (2007)
A series of 6-aryl-3-(3-hydroxypropyl)-7H-1,2,4-triazolo[3,4-b][1,3,4]-thia-diazines were synthesized by the reaction of 4-amino-3-(3-hydroxypropyl)-5-mercapto-1,2,4-triazole (1) with substituted ω-haloacetophenones. Their structures were confirmed
Externí odkaz:
https://doaj.org/article/a794b8661f89497e88a7afbd6e022552
Publikováno v:
Chinese Journal of Chemistry. 21:955-959
Cinchona alkaloids are utilized as chiral ligands to promote the enantioselective addition of dialkylzinc to N-diphenylphosphinylimines affording enantiomerically enriched N-diphenylphosphinylamines in up to 91% ee.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40540eafccfc696b98e0afc3b8ca455c
https://doi.org/10.1002/cjoc.20030210746
https://doi.org/10.1002/cjoc.20030210746
Publikováno v:
Tetrahedron: Asymmetry. 16:2901-2907
A library of chiral zinc complexes formed in situ by the combination of achiral and racemic diimines with 3,3′-di(3,5-ditrifluoromethylphenyl)-BINOL and diethylzinc were evaluated in the asymmetric addition of diethylzinc to N-acylimines. In the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c16bf2647a3d3737a74a06f2bb0733c
https://doi.org/10.1016/j.tetasy.2005.07.014
https://doi.org/10.1016/j.tetasy.2005.07.014
Autor:
Fan Jiang, Xiao-Mei Zhang, Hai-Le Zhang, Xin Cui, Yaozhong Jiang, Aiqiao Mi, Liu-Zhu Gong, Yun-Dong Wu
Publikováno v:
Chemistry - A European Journal. 10:1481-1492
Experimental studies on the modification of (1R,2S)-1,2-diphenyl-2-aminoethanol, which is used to promote the alkylation of N-diphenylphosphinoyl benzalimine with diethylzinc, revealed that N-monosubstituted amino alcohols exhibited higher enantiosel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93d03cd7cc467490ce4e94aae84354d4
https://doi.org/10.1002/chem.200305418
https://doi.org/10.1002/chem.200305418
Autor:
Aiqiao Mi, Michael C. K. Choi, Xin Cui, Yaozhong Jiang, Albert S. C. Chan, Guoshu Chen, Xin Li, Hai-Le Zhang, Liu-Zhu Gong
Publikováno v:
Tetrahedron: Asymmetry. 13:809-813
Palladium-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate with the dimethyl malonate–BSA–LiOAc system has been successfully carried out in the presence of easily prepared new chiral amino-phosphinite ligands such as 3b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6ad48079c7c5e69977c76bc8a91fcc1
https://doi.org/10.1016/s0957-4166(02)00204-5
https://doi.org/10.1016/s0957-4166(02)00204-5
Autor:
Aiqiao Mi, Xiaomei Zhang, Albert S. C. Chan, Michael C. K. Choi, Yaozhong Jiang, Hai-Le Zhang, Xin Cui, Liu-Zhu Gong
Publikováno v:
Organic Letters. 4:1399-1402
An easily accessible chiral ligand 3c, which promoted diethylzinc addition to imines with 96-98% ee, has been found by finely screening N,N-disubstituted and N-monosubstituted amino alcohols. N-monosubstituted amino alcohols, on average, gave slightl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51bda96f527a5b5ec6367ab1349c0e36
https://doi.org/10.1021/ol025728u
https://doi.org/10.1021/ol025728u
Publikováno v:
ChemInform. 36
Based on the asymmetric activation concept, a library of chiral zinc complexes in situ formed by the combination of diimines derived from chiral 1,2-diphenyl-ethanene-1,2-diamine, BINOL derivatives, and diethylzinc are evaluated in the asymmetric add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dda66b6c373b80215492d1f4f0a3eae
https://doi.org/10.1002/chin.200532088
https://doi.org/10.1002/chin.200532088
Autor:
Xin Cui, Aiqiao Mi, Yaozhong Jiang, Kai-Bei Yu, Hai-Le Zhang, Xiaomei Zhang, Liu-Zhu Gong, Wenqing Lin
Publikováno v:
ChemInform. 34
On the basis of the principle that the incorporation of the structurally rigid and conformationally restricted skeleton in beta-amino alcohols is beneficial to the enantioselective diethylzinc addition to imines, a series of chiral oxazolines, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c2ae0f1e7f703706e8f1fc278963dde
https://doi.org/10.1002/chin.200339027
https://doi.org/10.1002/chin.200339027
Publikováno v:
Chemistry - A European Journal; 3/19/2004, Vol. 10 Issue 6, p1481-1492, 12p
Autor:
Xiao-Mei Zhang, Hai-Le Zhang, Wen-Qing Lin, Liu-Zhu Gong, Ai-Qiao Mi, Xin Cui, Yao-Zhong Jiang, Kai-Bei Yu
Publikováno v:
Journal of Organic Chemistry; 5/30/2003, Vol. 68 Issue 11, p4322, 8p, 2 Diagrams, 3 Charts