$106.00
Available on backorder. No lead time available. Please request a quote.
Sku 15-1377-25MG
STREM
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. |