Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Chuan-Chuan Wang"'
Autor:
Chuan-Chuan Wang, Yi-Bin Fang, Ping Zhang, Xuan Zhu, Bo Hong, Yi Xu, Jian-Min Liu, Qing-Hai Huang
Publikováno v:
PLoS ONE, Vol 12, Iss 6, p e0180079 (2017)
The Low-profile Visualized Intraluminal Support (LVIS) device is a new generation of self-expanding braided stent recently introduced in China for stent assisted coiling of intracranial aneurysms. The aim of our study is to evaluate the feasibility,
Externí odkaz:
https://doaj.org/article/8382e1b0b604425a9ca1d4badebf1642
Autor:
Chuan-Chuan Wang, 王娟娟
103
Education is the keystone to the development of human civilization, through the practice of teaching and learning; people can develop its mental status to a higher level and improve its living standard. As a result, pre-school education play
Education is the keystone to the development of human civilization, through the practice of teaching and learning; people can develop its mental status to a higher level and improve its living standard. As a result, pre-school education play
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/46795706845320969802
Publikováno v:
Letters in Organic Chemistry. 19:1042-1046
Abstract: A novel tertiary amine squaramide has been successfully developed and applied to catalyze the asymmetric Michael addition between cyclic diketones and β,γ-unsaturated α-ketoesters. The catalyst system performed well with a low catalyst l
Publikováno v:
Letters in Organic Chemistry. 19:908-912
Abstract: A new tertiary amine-thiourea organocatalyst has successfully been developed and applied into the asymmetric Michael addition of pyrazolin-5-one to nitroalkenes. The catalyst system performed well with a low catalyst loading of 5 mol% under
Publikováno v:
Letters in Organic Chemistry. 19:913-917
Abstract: A highly stereoselective methodology was developed to construct dihydrofurans. In the presence of a bifunctional squaramide catalyst, the Michael addition/cyclization between cyclohexane- 1,3-dione and α-bromonitroalkenes occurred smoothly
Publikováno v:
Letters in Organic Chemistry. 19:677-681
Abstract: The isosteviol derived bifunctional primary amine-squaramide organocatalysts were applied in the Michael addition between nitroalkenes and acetophenone. The conjugate addition isomers of two configurations were observed with high yields (up
Publikováno v:
Synthesis. 54:1785-1792
A new tertiary amine-squaramide organocatalyst has been developed and applied to the asymmetric Michael addition of cyclic diketones to β,γ-unsaturated α-keto esters. The catalyst system performed well with a low catalyst loading of 1 mol% under m
Publikováno v:
Organic Chemistry Frontiers. 9:4271-4276
An efficient route to 3,4-dihydro-2H-1,4-thiazines was developed though [3 + 3] annulation of pyridinium 1,4-zwitterionic thiolates and aziridines under catalyst-free conditions.
Publikováno v:
ChemistrySelect. 5:12477-12480
Publikováno v:
Organic Letters. 22:3351-3355
A simple, direct, and highly enantioselective synthesis of spiro-oxindole piperidin-2-one derivatives was achieved through an aza-Michael/Michael cyclization cascade sequence using a squaramide catalyst. The desired products were obtained in excellen