中国科技论文在线

上传时间

2006年11月03日

【期刊论文】Asymmetric amidation of saturated C-H bonds catalysed by chiral ruthenium and manganese porphyrins

周向葛， Xiang-Ge Zhou， Xiao-Qi Yu， Jie-Sheng Huang and Chi-Ming Che*

Chem. Commun., 1999, 2377-2378，-0001，（）：

-1年11月30日

Chiral ruthenium (Ⅱ) and manganese(Ⅲ) porphyrins catalyse the asymmetric amidation of saturated C-H bonds of ethylbenzene and ethylnaphthalenes to form the corresponding amides in up to 85% yield with 45-58% ee.

17浏览
0点赞
0收藏
0分享
46下载
0

引用

上传时间

2006年11月03日

【期刊论文】Asymmetric aldol reactions catalyzed by new spiro diamine derivatives

周向葛， Man Jiang， a， Shou-Fei Zhu， b， Yun Yang， Liu-Zhu Gong， c， Xiang-Ge Zhoua， * and Qi-Lin Zhoub， *

Tetrahedron: Asymmetry 17(2006)384-387，-0001，（）：

-1年11月30日

摘要

Two new organocatalysts derived from L-proline and a novel chiral spiro diamine bearing a C2 symmetric backbone, were introduced for an asymmetric aldol reaction in moderate to good asymmetric induction in up to 76% ee and high yields.

42浏览
0点赞
0收藏
0分享
129下载
0

引用

上传时间

2006年11月03日

【期刊论文】Asymmetric epoxidation of alkenes catalysed by chromium binaphthyl Schiff base complex supported on MCM-41

周向葛， Xiang-Ge Zhou， a Xiao-Qi Yu， a Jie-Sheng Huang， a Shou-Gui Li， b Lian-Sheng Lib and Chi-Ming Che*a

Chem. Commun., 1999, 1789-1790，-0001，（）：

-1年11月30日

摘要

A chromium (Ⅲ) binaphthyl Schiff base complex immobilized on modified MCM-41 is an effective catalyst for asymmetric epoxidation of unfunctionalised alkenes and gave significantly higher ee than the free complex.

18浏览
0点赞
0收藏
0分享
52下载
0

引用

上传时间

2006年11月03日

【期刊论文】Asymmetric epoxidation catalyzed by Cr(Ⅲ)-binaphthyl Schiff base complexes

周向葛， Zheng-Kai Li a， Lei Liang a， Li Yanga， b， Hua Chena， Xiang-Ge Zhoua， c， *

Journal of Molecular Catalysis A: Chemical 235(2005)108-113，-0001，（）：

-1年11月30日

摘要

A series of chromic complexes with binaphthyl Schiff base as ligands are synthesized. Their catalytic abilities in asymmetric epoxidation and the effects of reaction conditions such as temperature, solvent and additive have also been studied, leading to the highest ee of 65% for 4-chlorostyrene; the reaction seems to involve a Cr(V)-oxo active species.

Chromic complex， Binaphthyl Schiff base， Asymmetric epoxidation

36浏览
0点赞
0收藏
0分享
179下载
0

引用

上传时间

2006年11月03日

【期刊论文】Synthesis, structure and catalytic properties of Re(I)-NOBIN Schiff base complex

周向葛， Zheng-Kai Li a， Yang Li a， b， Liang Lei a， Chi-Ming Che c， Xiang-Ge Zhou a， *

Inorganic Chemistry Communications 8(2005)307-309，-0001，（）：

-1年11月30日

摘要

The chiral mononuclear complex of Re(I)-NOBIN Schiff base (NOBIN=1-amino-10-hydroxylbinaphthyl) was synthesized via the reaction of Re(CO)5Cl and corresponding tridentate ligand in methanol. The structure analysis reveals that the central metal coordinates with nitrogen atom of imine and oxygen atom of salicylaldehyde form a six-membered ring, while the left uncoordinated phenol group adjacent to the binaphthyl backbone forms a hydrogen bonding with water molecule coordinated with the Re(I) ion. This mononuclear complex shows some catalytic ability in asymmetric epoxidation and aziridination with moderate results

Rhenium complex， NOBIN Schiff base， Chiral， Catalytic property

42浏览
0点赞
0收藏
0分享
102下载
0

引用