CAS: 18531-94-7 | (R)-[1,1'-Binaphthalene]-2,2'-diol

Products Description

The substance with CAS number 18531 - 94 - 7 is (R)-[1,1'-Binaphthalene]-2,2'-diol, also known as (R)-(+)-1,1'-Bi - 2 - naphthol. Its molecular formula is C₂₀H₁₄O₂, and its molecular weight is around 286.33. Its EINECS numbers are 606 - 050 - 5, 210 - 014 - 0, 606 - 048 - 4; its MDL number is MFCD00004068; its Beilstein number is 3616837.
Regarding its physical properties, (R)-[1,1'-Binaphthalene]-2,2'-diol appears as a white to off - white powder. Furthermore, melting points are in the range of 207.0°C - 207.5°C, 208°C - 210°C, 215°C - 218°C. Moreover, its boiling point is 462.1°C at 760 mmHg, and its density is 1.301. It is insoluble in water but soluble in many organic solvents, such as dichloromethane, ethyl acetate, ether and tetrahydrofuran which are commonly used for it. Its specific rotation is (α)²⁰/D +35.5±2° (c = 1% in THF).

Basic Info

Safety Information

Hazard category code: R36/37/38.
Dangerous goods transport number: UN 2811 6.1/PG 3.
Safety instructions: S26-S45-S24/25.
WGK Germany: WGK 3.

Uses

(R)-[1,1'-Binaphthalene]-2,2'-diol is an auxiliary for the asymmetric selective reduction of ketones and a ligand in chiral titanium catalysts for stereoselective reactions, such as the glyoxylic acid reaction and the Diels-Alder reaction.
(R)-[1,1'-Binaphthalene]-2,2'-diol can be used as a chiral auxiliary to catalyze the asymmetric oxidation of sulfides to sulfoxides.
Its chiral lanthanide trifluoromethanesulfonate derivative can be used as a catalyst for the asymmetric Diels-Alder reaction.
Binaphthol derivatives can be used for the asymmetric Claisen rearrangement and asymmetric epoxidation.
Its lithium aluminum hydride derivatives can be used for the reduction of ketones.

Company Profile

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