125536-69-8

Basic information

• Product Name: 2-methyl-2-phenyl-1,3-cyclopentanedione
• Synonyms: 2-methyl-2-phenyl-1,3-cyclopentanedione
• CAS NO: 125536-69-8
• Molecular Weight: 188.226
• Mol File: 125536-69-8.mol
• Article Data: 9

Chemical Properties

• CAS DataBase Reference: 2-methyl-2-phenyl-1,3-cyclopentanedione(CAS DataBase Reference)
• NIST Chemistry Reference: 2-methyl-2-phenyl-1,3-cyclopentanedione(125536-69-8)
• EPA Substance Registry System: 2-methyl-2-phenyl-1,3-cyclopentanedione(125536-69-8)

Safety Data

• Hazardous Substances Data: 125536-69-8(Hazardous Substances Data)

Upstream product

• 3674-77-9 2-methyl-2-phenyl-1,3-dioxolane 
• 17082-61-0 1,2-bis(trimethylsiloxy)cyclobutene 
• 108-86-1 bromobenzene 
• 765-69-5 2-Methylcyclopentane-1,3-dione 
• 98-86-2 acetophenone 

Downstream Products

• 1016989-14-2 C₁₂H₁₆O₂ 
• 1383003-56-2 (2R,4S)-4-ethyl-2-methyl-2-phenylcyclopentane-1,3-dione 
• 1383003-37-9 2-methyl-2-phenylcyclopent-4-ene-1,3-dione 
• 1383003-66-4 (2S,4R,5S)-4-((S)-[1,1'-biphenyl]-4-yl(hydroxy)methyl)-5-ethyl-2-methyl-2-phenylcyclopentane-1,3-dione 

Relevant articles and documents

An efficient approach to γ-alkylidene γ-butyrolactones: Application to the syntheses of pyridazinones and diazocinones

The efficient phototransformation of a variety of spirodiones 3 to γ- alkylidene γ butyrolactones 4 and their application to the syntheses of biologically useful pyridazinones 14 and diazocinones 15 are described.

Silver-Catalyzed Asymmetric Desymmetrization of Cyclopentenediones via [3 + 2] Cycloaddition with α-Substituted Isocyanoacetates

A highly selective and practical asymmetric Ag(I) catalyst system has been developed for the [3 + 2] cycloaddition reactions between isocyanoacetates and cyclopentenediones. The current Ag(I) catalyst system tolerates moisture and air and readily utilizes class III solvents such as EtOAc and acetone. The development of on demand generation of an active chiral catalyst in the presence of isocyanides paves a way to the efficient asymmetric preparation of bicyclic pyrrolidines with four stereogenic centers, including two quaternary centers in 80-97% ee.

Oxidative Heck desymmetrisation of 2,2-disubstituted cyclopentene-1,3-diones

Oxidative Heck couplings have been successfully developed for 2,2-disubstituted cyclopentene-1,3-diones. The direct coupling onto the 2,2-disubstituted cyclopentene-1,3-dione core provides a novel expedient way of enantioselectively desymmetrising all-carbon quaternary centres. This journal is

The BF3*Et2O-Catalyzed Reaction of 1,2-Biscyclobutene and Analogues with Aromatic Ketones

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