Cold Crystallization of Chiral Schiff-Base Nickel(II) Complex Having Alkyl Chains and a Characteristic Methyl Group

2019 ◽  
Vol 92 (11) ◽  
pp. 1853-1858
Author(s):  
Akinori Honda ◽  
Takashi Yoshida ◽  
Ayumi Shioda ◽  
Kuniharu Nomoto ◽  
Kazuo Miyamura
2007 ◽  
Vol 62 (6) ◽  
pp. 807-817 ◽  
Author(s):  
Mohammed Enamullah ◽  
A.K.M. Royhan Uddin ◽  
Anne-Christine Chamayou ◽  
Christoph Janiak

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


2010 ◽  
Vol 39 (22) ◽  
pp. 5332 ◽  
Author(s):  
Edwin C. Constable ◽  
Guoqi Zhang ◽  
Catherine E. Housecroft ◽  
Jennifer A. Zampese

2003 ◽  
pp. 3736-3742 ◽  
Author(s):  
Jin Zhao ◽  
Xiangge Zhou ◽  
Ana M. Santos ◽  
Eberhardt Herdtweck ◽  
Carlos C. Romão ◽  
...  

Optik ◽  
2019 ◽  
Vol 179 ◽  
pp. 54-61 ◽  
Author(s):  
R. Palomino-Merino ◽  
O. Portillo-Moreno ◽  
G. Hernández-Téllez ◽  
C. Atzin-Macedo ◽  
E. Rubio-Rosas ◽  
...  

2016 ◽  
Vol 52 (49) ◽  
pp. 7731-7734 ◽  
Author(s):  
Nan Ji ◽  
Jiani Yuan ◽  
Miaoxi Liu ◽  
Ting Lan ◽  
Wei He

A novel highly enantioselective Schiff base/Ti(iv) catalyst for the catalytic asymmetric epoxidation of a series of N-alkenyl sulfonamides under mild conditions was described.


Inorganics ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 37 ◽  
Author(s):  
Takashiro Akitsu ◽  
Atsuo Yamazaki ◽  
Kana Kobayashi ◽  
Tomoyuki Haraguchi ◽  
Kazunaka Endo

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