172585-06-7

Basic information

• Product Name: (S,S)-(+)-1,2-bis(2-methylphenyl)ethane-1,2-diol
• Synonyms: (S,S)-(+)-1,2-bis(2-methylphenyl)ethane-1,2-diol
• CAS NO: 172585-06-7
• Molecular Weight: 242.318
• Mol File: 172585-06-7.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: (S,S)-(+)-1,2-bis(2-methylphenyl)ethane-1,2-diol(CAS DataBase Reference)
• NIST Chemistry Reference: (S,S)-(+)-1,2-bis(2-methylphenyl)ethane-1,2-diol(172585-06-7)
• EPA Substance Registry System: (S,S)-(+)-1,2-bis(2-methylphenyl)ethane-1,2-diol(172585-06-7)

Safety Data

• Hazardous Substances Data: 172585-06-7(Hazardous Substances Data)

Upstream product

• 191283-14-4 3,4,4a,5,6,7-hexahydro-5,5-dimethyl-4'S,5'S-bis(2-methylphenyl)spiro[8H-2-benzopyran-3,2'-[1,3]-dioxolan]-8-one 
• 253446-53-6 3,4,4a,5,6,7-hexahydro-5,5-dimethyl-4'S,5'S-bis(2-methylphenyl)spiro[8H-2-benzopyran-3,2'-[1,3]-dioxolan]-8-ol 
• 89-92-9 2-methylbenzyl bromide 
• 92431-56-6 (2-methylbenzyl) phosphonic acid diisopropyl ester 
• 529-20-4 2-methylphenyl aldehyde 
• 36888-18-3 (E)-2,2'-dimethylstilbene 
• 191283-22-4 (S,S,S)-1,2-bis(2-methylphenyl)-2-hydroxyethyl (2-formyl-6,6-dimethyl-2-cyclohexen-1-yl)acetate 
• 67-56-1 methanol 
• 692-48-8 (E)-2,2,5,5-tetramethylhex-3-ene 

Downstream Products

• 172276-99-2 (4aR,4'S,5'S)-4',5'-bis(2-methylphenyl)-4,4a-dihydrospiro<3H,10H-pyrano<4,3-b><1>benzopyran-3,2'-<1,3>dioxolan>-10-one 
• 302842-98-4 (5S,6S)-5,6-Di-o-tolyl-[1,4]dioxan-2-one 
• 172277-06-4 (4S,5S)-2-Bromomethyl-4,5-di-o-tolyl-[1,3]dioxolane 

Relevant articles and documents

Truly catalytic and enantioselective pinacol coupling of aryl aldehydes mediated by chiral Ti(III) complexes

A variety of chiral Ti(IV) complexes were reduced in situ with zinc in acetonitrile. The resulting chiral Ti(III) complexes were found to catalyze the pinacol coupling reaction stereoselectively. The best results were obtained from the Ti-SALEN complex, which was found to be an efficient catalyst at 10 mol % concentration. Various aromatic aldehydes were coupled to obtain chiral hydrobenzoin derivatives with high diastereoselectivity and enantioselectivity. A plausible mechanism is proposed that rationalizes the stereochemical outcome of the reaction.

Enantioselective pinacol coupling of aryl aldehydes catalyzed by chiral Salan-Mo(IV) complexes

(Chemical Equation Presented) Reported herein is the asymmetric pinacol coupling of aromatic aldehydes with chiral Salan-Mo(VI) dioxo complex as an effective precatalyst. Chiral diols were obtained with high diastereoselectivity and enantioselectivity up

Enantioselective pinacol coupling of aldehydes mediated and catalyzed by chiral titanium complexes

equation presented Starting from easily available chiral Schiff bases, a straightforward synthesis of air-stable titanium(IV) complexes was devised. Asymmetric pinacol coupling of aromatic aldehydes mediated and catalyzed by the corresponding low valent complexes afforded the chiral diols with high yields and enantioselectivities up to 91%. ? Universite catholique de Louvain. ? Universite Paris-Sud.