The bi-naphthol moiety is a colorless solid. The structure depicts two naphthol rings joined at the respective 1-positions. The presence of two hydroxy groups renders the molecule highly reactive and the product forms a backbone of a variety of value-added chemicals and ligands.
|Structure||(download pdf to view)|
The bi-naphthyl structure serves as an important ligand for asymmetric synthesis in organic chemistry, especially in Diels-Alder reactions, carbonyl addition and reductions.
Some key applications are:
|(S)-Binol by resolution of the mother binol|
|(R)-Binol in the same resolution process|
|Aluminium Lithium bi(binaphthol) (its (R)-enantiomer)|
A very recent but path-breaking application of Binol has been in preparation of one of the Covid-19 vaccines being developed and supplied from India.
|Appearance||–||White to off-white powder|
|Identification By IR||–||Conforms to reference spectrum|
|Identification By Proton NMR||–||Conforms to reference spectrum|
|Purity By HPLC||%||NLT 99.0|
|Moisture||Wt. %||NMT 0.5|
The product is stored at ambient temperature.
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