A useful method of optical activity. IX. Determination of the absolute configuration of a spiro quaternary ammonium salt via Stevens rearrangement

1969 ◽  
Vol 34 (2) ◽  
pp. 354-358 ◽  
Author(s):  
James H. Brewster ◽  
R. Sidney Jones
Keyword(s):  
Optical Activity ◽  
Ammonium Salt ◽  
Absolute Configuration ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Stevens Rearrangement ◽  
The Absolute

scholarly journals Determination of the Absolute Stereochemistry of Limonene and α-Santalol by Raman Optical Activity Spectroscopy

2012 ◽  
Vol 7 (4) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Akira Sakamoto ◽  
Nao Ohya ◽  
Toshio Hasegawa ◽  
Hiroaki Izumi ◽  
Nakako Tokita ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Optical Activity ◽  
Absolute Configuration ◽  
Natural Compounds ◽  
Vibrational Circular Dichroism ◽  
Raman Optical Activity ◽  
The Absolute ◽  
Circular Dichroïsm ◽  
Absolute Stereochemistry

Determining the absolute stereochemistry of organic compounds in solution remains a challenge. We investigated the use of Raman optical activity (ROA) spectroscopy to address this problem. The absolute configurations of (+)-( R)- and (-)-( S)-limonene were determined by ROA spectroscopy, which can be applied to smaller amounts of sample as compared with vibrational circular dichroism (VCD) spectroscopy. This ROA method was also applied to (+)-( E)-α-santalol and shown to be successful in the determination of the absolute configuration of this compound. ROA spectroscopy shows promise as a useful tool for determining the absolute stereochemistry of many natural compounds.

Extractive spectrophotometric determination of mercury(II) with 4-(2-pyridylazo)resorcinol and a long-chain quaternary ammonium salt

The Analyst ◽  
1985 ◽  
Vol 110 (4) ◽  
pp. 391 ◽  
Author(s):  
Yerramilli Anjaneyulu ◽  
P. Chandra Mouli ◽  
M. Ravi Prakasa Reddy ◽  
Kavi Purapu Chandra Sekhar
Keyword(s):  
Spectrophotometric Determination ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Long Chain

Determination of Mo(vi) in water with poly(quaternary ammonium salt) as a binding phase of diffusive gradients in thin-films

2015 ◽  
Vol 7 (24) ◽  
pp. 10251-10255 ◽  
Author(s):  
Hong Chen ◽  
Menghan Zhang ◽  
Han Zhang ◽  
Yu Zhang ◽  
Xu Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Binding Agent ◽  
Binding Phase ◽  
Diffusive Gradients

A DGT device with poly(quaternary ammonium salt) as a binding agent was developed for the sampling and measurement of Mo(vi) in waters.

Simultaneous determination of Fatty quaternary ammonium salt by RP-HPLC

2015 ◽  
Vol 32 (3) ◽  
pp. 461-468
Author(s):  
Yong-Hwa Lee ◽  
◽  
Jae-Chan Yang ◽  
Chi-Kwang Kim ◽  
Yong-Sub Lee
Keyword(s):  
Simultaneous Determination ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Rp Hplc
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