A chiral diborate with different counterions is reported whose structure was unambiguously confirmed by X-ray analysis. This chiral dianion was used in the resolution of trans-1,2-diamines and also as a chiral shift reagent for NMR analysis of triphenylphosphonium salts.
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Synthesis and application of a chiral diborate.
J Org Chem
April 2011
Organisch-Chemisches Institut der Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany.
A chiral diborate with different counterions is reported whose structure was unambiguously confirmed by X-ray analysis. This chiral dianion was used in the resolution of trans-1,2-diamines and also as a chiral shift reagent for NMR analysis of triphenylphosphonium salts.
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