199991-74-7

Upstream product

• 85483-96-1 (2S)-1-benzyloxy-2-propanyl tetrahydropyran-2-yl ether 
• 13807-91-5 (2S)-1-(benzyloxy)propan-2-ol 

Downstream Products

• 188303-41-5 (5S,8S,10S,13S)-19,21-Dimethoxy-8,10-dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17⁽²¹⁾,18-triene 
• 199991-92-9 (5R,8S,10S,13R)-19,21-Dimethoxy-8,10-dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17⁽²¹⁾,18-triene 
• 188303-42-6 (5S,8S,10S,13S)-19-Methoxy-8,10-dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17⁽²¹⁾,18-trien-21-ol 
• 199991-96-3 (5R,8S,10S,13R)-19-Methoxy-8,10-dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17⁽²¹⁾,18-trien-21-ol 
• 199992-19-3 (5S,8S,10S,13S)-8,10-Dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17-diene-19,21-dione 
• 199992-24-0 (5R,8S,10S,13R)-8,10-Dimethyl-5,13-diphenyl-3,6,9,12,15-pentaoxa-bicyclo[15.3.1]henicosa-1⁽²⁰⁾,17-diene-19,21-dione 
• 171753-73-4 (2S,2'S)-oxybis(propane-2,1-diyl)bis(4-methylbenzenesulfonate) 

Relevant academic research and scientific papers

Preparation of optically active azophenolic crown ethers containing 1-phenylethane-1,2-diol and 2,4-dimethyl-3-oxapentane-1,5-diol as a chiral subunit: Temperature-dependent enantiomer selectivity in the complexation with chiral amines

With (2S,4S)-2,4-dimethyl-3-oxapentane-1,5-diol and (S)- or (R)-1-phenylethane-1,2-diol as chiral subunits, optically active azophenolic crown ethers (S,S,S,S)-1, (R,S,S,R)-2, (S,S,S,S)-3 and (R,S,S,R)-4 possessing two phenyl and two methyl substituents together with the p-(2,4-dinitrophenylazo)phenol moiety have been prepared in enantiomerically pure forms. Temperature-dependent enantiomer selectivity in the complexation of these crown ethers with chiral amines has been studied by the UV-visible spectroscopic method in chloroform and from the observed association constants, thermodynamic parameters for the complexation have been calculated.

Preparation and Enantiomer Recognition of Chiral Azophenolic Crown Ethers Having three Chiral Barriers on each of the Homotopic Faces

Homochiral azophenolic crown ethers 1 and 2 having three chiral barriers, that is, the phenyl group, the methyl group, and the cyclohexane moiety on each of the homotropic faces have been prepared.The enantiomer recognition toward chiral 2-aminoethanol derivatives has been examined.