Measuring Reaction Kinetics by Using Multiple Microcoil NMR Spectroscopy

2003 ◽  
Vol 115 (38) ◽  
pp. 4817-4820 ◽  
Author(s):  
Luisa Ciobanu ◽  
Dimuthu A. Jayawickrama ◽  
Xiaozhong Zhang ◽  
Andrew G. Webb ◽  
Jonathan V. Sweedler
2003 ◽  
Vol 42 (38) ◽  
pp. 4669-4672 ◽  
Author(s):  
Luisa Ciobanu ◽  
Dimuthu A. Jayawickrama ◽  
Xiaozhong Zhang ◽  
Andrew G. Webb ◽  
Jonathan V. Sweedler

The Analyst ◽  
2015 ◽  
Vol 140 (18) ◽  
pp. 6217-6221 ◽  
Author(s):  
Michael C. D. Tayler ◽  
S. (Bas) G. J. van Meerten ◽  
Arno P. M. Kentgens ◽  
P. Jan M. van Bentum

A protocol combining rapid and low-cost chromatography and NMR spectroscopy is demonstrated.


2013 ◽  
Vol 52 (27) ◽  
pp. 9337-9342 ◽  
Author(s):  
Arati Santhanakrishnan ◽  
Lars Peereboom ◽  
Dennis J. Miller ◽  
Adina Dumitrascu ◽  
Patrick B. Smith

2015 ◽  
Vol 11 ◽  
pp. 1447-1457 ◽  
Author(s):  
Ana Čikoš ◽  
Irena Ćaleta ◽  
Dinko Žiher ◽  
Mark B Vine ◽  
Ivaylo J Elenkov ◽  
...  

Three novel spiroketals were prepared by a one-pot transformation of 6-O-methyl-9(E)-hydroxyiminoerythronolide A. We present the formation of a [4.5]spiroketal moiety within the macrolide lactone ring, but also the unexpected formation of a 10-C=11-C double bond and spontaneous change of stereochemistry at position 8-C. As a result, a thermodynamically stable structure was obtained. The structures of two new diastereomeric, unsaturated spiroketals, their configurations and conformations, were determined by means of NMR spectroscopy and molecular modelling. The reaction kinetics and mechanistic aspects of this transformation are discussed. These rearrangements provide a facile synthesis of novel macrolide scaffolds.


Lab on a Chip ◽  
2005 ◽  
Vol 5 (3) ◽  
pp. 280 ◽  
Author(s):  
Henk Wensink ◽  
Fernando Benito-Lopez ◽  
Dorothee C. Hermes ◽  
Willem Verboom ◽  
Han J. G. E. Gardeniers ◽  
...  

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