101693-57-6

Basic information

• Product Name: 2-Cyclopenten-1-one, 4-methyl-4-(4-methylphenyl)-, (4R)-
• CAS NO: 101693-57-6
• Molecular Formula: C13H14O
• Molecular Weight: 186.254
• Mol File: 101693-57-6.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 2-Cyclopenten-1-one, 4-methyl-4-(4-methylphenyl)-, (4R)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Cyclopenten-1-one, 4-methyl-4-(4-methylphenyl)-, (4R)-(101693-57-6)
• EPA Substance Registry System: 2-Cyclopenten-1-one, 4-methyl-4-(4-methylphenyl)-, (4R)-(101693-57-6)

Safety Data

• Hazardous Substances Data: 101693-57-6(Hazardous Substances Data)

Upstream product

• 101692-77-7 (S)-2-p-tolyl-2-methyl-4-oxovaleraldehyde 
• 126892-14-6 (R)-4-Methyl-2-phenylselanyl-4-p-tolyl-cyclopentanone 
• 121402-68-4 (1RS,3S,4RS)-4-methanesulfonyloxy-3-methyl-3-p-tolyl-1-(tetrahydropyran-2-yl)oxycyclopentane 
• 192513-08-9 1-Methyl-4-((R)-1-methyl-cyclopent-2-enyl)-benzene 
• 273381-30-9 (3S,4R)-4-Hydroxy-3-methyl-3-p-tolyl-cyclopentanone 
• 104832-21-5 (3aS,6aS)-2,2,6-Trimethyl-3a,6a-dihydro-cyclopenta[1,3]dioxol-4-one 
• 4424-32-2 2-(4-methylphenyl)-1,3-propanediol 
• 72843-32-4 1-((R)-3-Bromo-1-methyl-propyl)-4-methyl-benzene 
• 273381-20-7 (1R,2S,3S,5R)-3-(tert-Butyl-dimethyl-silanyloxy)-5-(1-methyl-1-phenyl-ethoxy)-cyclopentane-1,2-diol 
• 273381-27-4 (3aR,4S,6S,6aS)-6-(tert-Butyl-dimethyl-silanyloxy)-2,2,4-trimethyl-tetrahydro-cyclopenta[1,3]dioxol-4-ol 
• 273381-26-3 (3aR,6S,6aS)-6-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-tetrahydro-cyclopenta[1,3]dioxol-4-one 
• 273381-29-6 (3aS,6S,6aS)-2,2,6-Trimethyl-6-p-tolyl-tetrahydro-cyclopenta[1,3]dioxol-4-one 
• 273381-28-5 (3aS,6S,6aR)-6-Hydroxy-2,2,6-trimethyl-tetrahydro-cyclopenta[1,3]dioxol-4-one 
• 273381-31-0 (3aR,4S,6S,6aR)-2,2,4-Trimethyl-tetrahydro-cyclopenta[1,3]dioxole-4,6-diol 

Downstream Products

• 101692-78-8 (R)-4,5,5-trimethyl-4-p-tolylcyclopent-2-enone 

Relevant articles and documents

Synthesis of Cyclopentenones with C4-Quaternary Stereocenters via Stereospecific [3,3]-Sigmatropic Rearrangement and Applications in Total Synthesis of Sesquiterpenoids

A cationic gold(I)-catalyzed asymmetric [3,3]-sigmatropic rearrangement of sulfonium leads after cyclization to cyclopentenones with a C4-quaternary stereocenter. Starting with simple vinyl sulfoxides and propargyl silane, numerous compounds were isolated

An enantiodivergent route to α-cuparenone utilizing chiral cyclopentenol having a latent meso structure

An efficient enantiodivergent route to α-cuparenone, a sesquiterpene isolated in both enantiomeric forms, has been developed utilizing a chiral cyclopentanoid starting material having a latent meso structure. (C) 2000 Elsevier Science Ltd.

ENANTIOCONVERGENT SYNTHESIS OF (-)-α-CUPARENONE INVOLVING CHIRAL INVERSION OF A KETONE INTERMEDIATE

The acid (-)-2 was converted to the ketone (-)-6.Unsaturated ketone (+)-14 was synthesised from (-)-6.The ketone (+)-7 prepared from the acid (+)-3 on 1,2-ketone transposition, furnished the optical antipode (-)-6.