909134-99-2Relevant articles and documents
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AND PROCESS FOR PRODUCING -AMINO ACID AND DERIVATIVE THEREOF WITH THE SAME
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Page/Page column 80, (2008/06/13)
The present invention provides a chiral phase-transfer catalyst of the following formula (I): The compound (I) can be produced by reacting a 2,2'-dimethylene bromide-1,1'-biphenyl derivative, which can be produced through comparatively small number of steps, with an easily available secondary amine.