ChemInform Abstract: Chiral Schiff Base Ligated Dioxomolybdenum (VI) Complexes and Their Asymmetric Catalytic Properties in the Epoxidation of Styrene.

ChemInform ◽  
2013 ◽  
Vol 44 (12) ◽  
pp. no-no
Author(s):  
Yan Sui ◽  
Dongsheng Liu ◽  
Ronghua Hu ◽  
Xiaobo Que
Keyword(s):  
Schiff Base ◽  
Catalytic Properties ◽  
Asymmetric Catalytic ◽  
Chiral Schiff Base

An effect of the ionic radii of lanthanide(III) ions on the structure and catalytic properties of chiral Schiff base-lanthanide(III) complexes

2003 ◽  
Vol 349 ◽  
pp. 6-16 ◽  
Author(s):  
Shinya Kano ◽  
Hirofumi Nakano ◽  
Masaaki Kojima ◽  
Naomichi Baba ◽  
Kiyohiko Nakajima
Keyword(s):  
Schiff Base ◽  
Catalytic Properties ◽  
Ionic Radii ◽  
Chiral Schiff Base

Syntheses, Spectroscopy And Crystal Structures Of (R)-N-(1-Aryl-Ethyl)Salicylaldimines And [Rh{(R)-N-(1-Aryl-Ethyl)Salicylaldiminato}(η4-Cod)] Complexes

2007 ◽  
Vol 62 (6) ◽  
pp. 807-817 ◽  
Author(s):  
Mohammed Enamullah ◽  
A.K.M. Royhan Uddin ◽  
Anne-Christine Chamayou ◽  
Christoph Janiak
Keyword(s):  
Mass Spectrometry ◽  
Schiff Base ◽  
Schiff Bases ◽  
Structure Determination ◽  
Chelate Ring ◽  
Optical Rotation ◽  
X Ray ◽  
Mononuclear Complexes ◽  
Chiral Schiff Base ◽  
C Nmr

Condensation of salicylaldehyde with enantiopure (R)-(1-aryl-ethyl)amines yields the enantiopure Schiff bases (R)-N-(1-aryl-ethyl)salicylaldimine (HSB*; aryl = phenyl, 2-methoxyphenyl, 3- methoxyphenyl, 4-methoxyphenyl (4), 4-bromophenyl (5), 2-naphthyl). These Schiff bases readily react with dinuclear (acetato)(η4-cycloocta-1,5-diene)rhodium(I), [Rh(μ-O2CMe)(η4-cod)]2, to afford the mononuclear complexes, cyclooctadiene-((R)-N-(1-aryl-ethyl)salicylaldiminato-κ2N,O)- rhodium(I), [Rh(SB∗)(η4-cod)] (SB* = deprotonated chiral Schiff base = salicylaldiminate; aryl = phenyl (7), 2-methoxyphenyl, 4-methoxyphenyl, 4-bromophenyl, 2-naphthyl). The complexes have been characterized by IR, UV/vis, 1H/13C NMR and mass spectrometry, optical rotation as well as by single-crystal X-ray structure determination for 4, 5 and 7. The structure of 5 shows C-Br· · ·π contacts. Compound 7 is only the second example of a Rh(η4-cod) complex with a six-membered Rh-N,O-chelate ring

Sign in / Sign up

Export Citation Format

Share Document