INTRODUCTION
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.
| Synonyms | 1,1’-bi-2-naphthol |
| CAS no. | 602-09-5 |
| EINECS no. | 210-014-0 |
| Molecular formula | C2OH14O2 |
| Structure | (download pdf to view) |
| Molecular weight | 286.32 |
APPLICATIONS
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:
| 2,2’-bis(diphenylphosphino)-1,1’-binaphthyl (BINAP) |
| (S)-Binol by resolution of the mother binol |
| (R)-Binol in the same resolution process |
| Aluminium Lithium bi(binaphthol) (its (R)-enantiomer) |
| (S)-Vanol |
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.
SPECIFICATIONS
| TEST | UNIT | SPECIFICATION |
|---|---|---|
| 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 |
STORAGE
The product is stored at ambient temperature.
ExSyn offers this compound on commercial scale and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please get in touch with us.
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