isomeric methyl
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2017 ◽  
Vol 21 (02) ◽  
pp. 103-109 ◽  
Author(s):  
Vladimir A. Burmistrov ◽  
Alexander S. Semeikin ◽  
Gregory V. Kuvshinov ◽  
Victor V. Aleksandriiskii ◽  
Tatiana V. Lubimova ◽  
...  

The Ni(II) complex of 5,10,15,20-tetrakis[3[Formula: see text],5[Formula: see text]-di(2[Formula: see text]-methylbutyloxy)phenyl]porphine was synthesized and characterized by 1H NMR, UV-vis spectroscopy and MALDI-TOF mass-spectrometry. The stationary phase on the base of synthesized Ni(II) complex was used for chromatographic separation of isomeric methyl- and dimethylpyridines. The high structural selectivity of this sorbent was explained by giving the results of DFT calculation of pyridine derivatives axial complexes with porphyrin Ni(II) complexes.


2013 ◽  
Vol 62 (5) ◽  
pp. 1286-1292
Author(s):  
S. N. Yashkin ◽  
E. A. Yashkina ◽  
D. A. Svetlov ◽  
Yu. N. Klimochkin

ChemInform ◽  
2010 ◽  
Vol 25 (30) ◽  
pp. no-no
Author(s):  
C. ARTH ◽  
M. CLEMENS ◽  
W. MEISE
Keyword(s):  

2008 ◽  
Vol 22 (3) ◽  
pp. 409-416 ◽  
Author(s):  
Dorota Prukała ◽  
Wiesław Prukała ◽  
Ryszard Koczorowski ◽  
Igor V. Khmelinskii ◽  
Ewa Sikorska ◽  
...  

2007 ◽  
Vol 2 (1) ◽  
pp. 114-118
Author(s):  
Pavel F. Vlad ◽  
Alexandru G. Ciocarlan ◽  
Grigore N. Mironov ◽  
Mihai N. Coltsa ◽  
Yurii A. Simonov ◽  
...  
Keyword(s):  
X Ray ◽  

A mixture of 7α- and 17-bromonorambreinolides was obtained on treatment of the mixture of isomeric methyl bicyclohomofarnesenoates, the norambreinolide transesterification product, with NBS and H2O2. The structure of 7α- and 17-bromonorambreinolides was elucidated on the basis of spectral data. The structure of 17-bromonorambreinolide was confirmed by its reduction with LiAlH4 into sclaradiol, and that of 7α-bromonorambreinolide by X-ray analysis.


Heterocycles ◽  
2006 ◽  
Vol 68 (7) ◽  
pp. 1459 ◽  
Author(s):  
Martha S. Morales-Ríos ◽  
Ernesto Rivera-Becerril ◽  
Pedro Joseph-Nathan ◽  
Nury Pérez-Hernández

2004 ◽  
Vol 374 (1-2) ◽  
pp. 258-260 ◽  
Author(s):  
M.G Alvarenga ◽  
L.B Zinner ◽  
C.A Fantin ◽  
J.R Matos ◽  
G Vicentini

Author(s):  
Detlef Heller ◽  
Hans-Joachim Drexler ◽  
Jingsong You ◽  
Wolfgang Baumann ◽  
Karlheinz Drauz ◽  
...  

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