60999-91-9

Basic information

• Product Name: (-)-(1R,2S)-N-hexadecyl-N,N-dimethylephedrinium bromide
• CAS NO: 60999-91-9
• Molecular Weight: 484.604
• Mol File: 60999-91-9.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: (-)-(1R,2S)-N-hexadecyl-N,N-dimethylephedrinium bromide(CAS DataBase Reference)
• NIST Chemistry Reference: (-)-(1R,2S)-N-hexadecyl-N,N-dimethylephedrinium bromide(60999-91-9)
• EPA Substance Registry System: (-)-(1R,2S)-N-hexadecyl-N,N-dimethylephedrinium bromide(60999-91-9)

Safety Data

• Hazardous Substances Data: 60999-91-9(Hazardous Substances Data)

Upstream product

• 552-79-4 (-)-N-methylephedrine 
• 112-82-3 hexadecanyl bromide 

Downstream Products

• 14212-54-5 (+)-(R,R)-β-methylstyrene oxide 

Relevant articles and documents

Spectral and physicochemical characterization of dysprosium-based multifunctional ionic liquid crystals

We report on the synthesis and characterization of multifunctional ionic liquid crystals (melting points below 100 °C) which possess chirality and fluorescent behavior as well as mesomorphic and magnetic properties. In this regard, (1R,2S)-(-)-N-methylephedrine ((-)MeEph), containing a chiral center, is linked with variable alkyl chain lengths (e.g., 14, 16, and 18 carbons) to yield liquid crystalline properties in the cations of these compounds. A complex counteranion consisting of trivalent dysprosium (Dy3+) and thiocyanate ligand (SCN-) is employed, where Dy3+ provides fluorescent and magnetic properties. Examination of differential scanning calorimetry (DSC) and hot-stage polarizing optical microscopy (POM) data confirmed liquid crystalline characteristics in these materials. We further report on phase transitions from solid to liquid crystal states, followed by isotropic liquid states with increasing temperature. These compounds exhibited two characteristic emission peaks in acetonitrile solution and the solid state when excited at ex = 366 nm, which are attributed to transitions from 4F9/2 to 6H15/2 and 4F9/2 to 6H13/2. The emission intensities of these compounds were found to be very sensitive to the phase.

Solvent-free microwave-assisted preparation of chiral ionic liquids from (-)-N-methylephedrine

An efficient method for the preparation of chiral ionic liquids based on (1R,2S)-(-)-ephedrinium salts under solvent-free conditions and microwave activation is described. The influence of non-specifically thermal microwave effects - consistent with mecha

SYNTHESES D'OXYDES DE PHOSPHINES OPTIQUEMENT ACTIFS PAR LA TECHNIQUE DU TRANSFERT DE PHASE

Asymmetric induction in phosphine oxides 5-8 synthesized from prochiral phosphonium compounds 1-4 is reported.When 1-4 react under PTC conditions using an optically active quaternary ammonium salt as a chiral catalyst, phosphine oxides 5-8 are obtained wi