133699-11-3

Basic information

• Product Name: 3(R),4(R)-dimethyl-1,15,15,15-tetraphenyl-2,5,8,11,14-pentaoxadodecane
• Synonyms: 3(R),4(R)-dimethyl-1,15,15,15-tetraphenyl-2,5,8,11,14-pentaoxadodecane
• CAS NO: 133699-11-3
• Molecular Weight: 554.726
• Mol File: 133699-11-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 3(R),4(R)-dimethyl-1,15,15,15-tetraphenyl-2,5,8,11,14-pentaoxadodecane(CAS DataBase Reference)
• NIST Chemistry Reference: 3(R),4(R)-dimethyl-1,15,15,15-tetraphenyl-2,5,8,11,14-pentaoxadodecane(133699-11-3)
• EPA Substance Registry System: 3(R),4(R)-dimethyl-1,15,15,15-tetraphenyl-2,5,8,11,14-pentaoxadodecane(133699-11-3)

Safety Data

• Hazardous Substances Data: 133699-11-3(Hazardous Substances Data)

Upstream product

• 76-83-5 trityl chloride 
• 124338-52-9 (2R,3R)-3-(phenylmethoxy)-2-butanol 
• 133699-10-2 10,10,10-Triphenyl-3,6,9-trioxadecyl-p-toluenesulfonate 

Relevant articles and documents

Recognition by New Symmetrically Substituted Chiral Diphenyl- and Di-tert-butylpyridino-18-crown-6 and Asymmetrically Substituted Chiral Dimethylpyridino-18-crown-6 Ligands of the Enantiomers of Various Organic Ammonium Perchlorates

Three new chiral pyridino-18-crown-6 ligands have been prepared.These ligands contain either two phenyl, two tert-butyl, or two methyl substituents on chiral macroring carbon atoms.The chiral di-tert-butyl-substituted diester crown analogue was also prepared.The starting chiral di-tert-butyl-substituted tetraethylene glycol needed to prepare the two di-tert-butyl-substituted crowns was obtained from chiral tert-butyl-1,2-ethanediol, which was resolved from its bis(hydrogen phthalate) brucine salt.A high degree of chiral recognition in CD2Cl2 of the enantiomers of ammonium perchlorate (NapEt) was shown by the diphenyl- and di-tert-butyl-substituted crowns as measured by differences in the free energy of avtivation (ΔGc*) values determined by temperature dependent 1H NMR spectroscopy.The diphenyl- and di-tert-butyl-substituted crowns also exhibited high chiral recognition for the enantiomers of NapEt and other chiral organic ammonium salts in methanol and methanol-chloroform mixtures as shown by a large difference in the log K values determined by a direct 1H NMR technique.