23718-99-2

Basic information

• Product Name: 1,3-Propanedione, 2-methylene-1,3-diphenyl-
• CAS NO: 23718-99-2
• Molecular Formula: C16H12O2
• Molecular Weight: 236.27
• Mol File: 23718-99-2.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 1,3-Propanedione, 2-methylene-1,3-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Propanedione, 2-methylene-1,3-diphenyl-(23718-99-2)
• EPA Substance Registry System: 1,3-Propanedione, 2-methylene-1,3-diphenyl-(23718-99-2)

Safety Data

• Hazardous Substances Data: 23718-99-2(Hazardous Substances Data)

Upstream product

• 50-00-0 formaldehyd 
• 120-46-7 1,3-diphenylpropanedione 
• 67-68-5 dimethyl sulfoxide 
• 127-19-5 N,N-dimethyl acetamide 
• 85054-07-5 2-Methylsulfanylmethyl-1,3-diphenyl-propane-1,3-dione 
• 102148-17-4 (2-Benzoyl-3-oxo-3-phenylpropyl)dimethylammoniumchlorid 
• 85054-03-1 2-Methanesulfinylmethyl-1,3-diphenyl-propane-1,3-dione 
• 37559-19-6 3-(phenyl)prop-2-yn-1-yl benzoate 

Downstream Products

• 68665-40-7 1,2-dibenzoylchloroethane 
• 22867-05-6 2,3-dibromo-1,4-diphenyl-butane-1,4-dione 
• 4727-98-4 1,1,3,3-tetrabenzoylpropane 
• 94875-81-7 3,3-Dibenzoyl-1,1-bis-methoxycarbonyl-propan 
• 132608-48-1 2,5-bis(2,2-dibenzoylethyl)furan 
• 87606-30-2 5-benzoyl-2-methoxy-6-phenyl-3,4-dihydro-2H-pyran 
• 37586-96-2 2-(4-hydroxy-2-oxo-2H-chromen-3-ylmethyl)-1,3-diphenyl-propane-1,3-dione 
• 87606-32-4 5-benzoyl-2-methoxy-2-methyl-6-phenyl-3,4-dihydro-2H-pyran 
• 7599-99-7 3-hydroxy-2-[(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-en-1-yl)methyl]-5,5-dimethylcyclohex-2-en-1-one 
• 102148-17-4 (2-Benzoyl-3-oxo-3-phenylpropyl)dimethylammoniumchlorid 
• 87606-35-7 5-benzoyl-2-ethoxy-6-phenyl-3,4-dihydro-2H-pyran 
• 88404-98-2 (2S,3R)-3-Benzoyl-2-methoxy-2-phenyl-3,4-dihydro-2H-pyrano[3,2-c]chromen-5-one 

Relevant articles and documents

Mild Darzens Annulations for the Assembly of Trifluoromethylthiolated (SCF3) Aziridine and Cyclopropane Structures

We report mild new annulation approaches to trisubstituted trifluoromethylthiolated (SCF3) aziridines and cyclopropanes via Darzens inspired protocols. The products of these anionic annulations, rarely studied previously, possess attractive features rendering them valuable building blocks for synthesis platforms. In this study, trisubstituted acetophenone nucleophiles bearing SCF3 and bromine substituents in their α position were shown to undergo [2 + 1] annulations with vinyl ketones and tosyl-protected imines under mild reaction conditions.

A facile method for the synthesis of fused perhydropyrano[2,3: -b] pyrans promoted by Yb(OTf)3

A stereospecific three-component domino reaction between glycals, alkylidene malonate and aldehydes catalyzed by Yb(OTf)3 is described. Multi-substituted cis-fused perhydropyrano[2,3-b]pyran derivatives were obtained with high diastereoselectiv

METHYLENE BETA-DIKETONE MONOMERS, METHODS FOR MAKING METHYLENE BETA-DIKETONE MONOMERS, POLYMERIZABLE COMPOSITIONS AND PRODUCTS FORMED THEREFROM

The present invention provides methylene beta-diketone monomers, methods for producing the same, and compositions and products formed therefrom. In the method for producing the methylene beta-diketones of the invention, a beta-diketone is reacted with a source of formaldehyde in a modified Knoevenagel reaction optionally in the presence of an acidic or basic catalyst, and optionally in the presence of an acidic or non-acidic solvent, to form reaction complex. The reaction complex may be an oligomeric complex. The reaction complex is subjected to further processing, which may be vaporization by contact with an energy transfer means in order to isolate the beta-diketone monomer. The present invention further compositions and products formed from methylene beta-diketone monomers of the invention, including monomer-based products (e.g., inks, adhesives, coatings, sealants or reactive molding) and polymer-based products (e.g., fibers, films, sheets, medical polymers, composite polymers and surfactants).