(11bR)-2,6-Bis[3,5-bis(trifluoromethyl)phenyl]-8,9,10,11,12,13,14,15-octahydro-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin, 98%, (99% ee)

Technical Notes:
1. The preparation of binaphthol monophosphoric acid derivatives.
2.Sigmatropic Rearrangements: Used in the organocatalytic aryl-aryl bond-forming process for the regio- and atroposelective synthesis of 2,2'-diamino-1,1'-binaphthalenes (BINAMs).In the presence of catalytic amounts of axially chiral phosphoric acids, achiral N,N'-binaphthyl hydrazines undergo a facile [3,3]-
sigmatropic rearrangement to afford enantiomerically enriched BINAM derivatives in good to excellent yield.
References:
1: JP4725757E81038877 u86274745,12000-3-21.