37559-20-9

Upstream product

• 37559-18-5 3-phenylprop-2-ynyl acetate 
• 57205-21-7 2-Methyl-1-phenyl-2-phenylseleno-1,3-butandion 
• 85054-04-2 2-Methanesulfinylmethyl-1-phenyl-butane-1,3-dione 
• 50-00-0 formaldehyd 
• 93-91-4 1-phenylbutan-1,3-dione 
• 6668-24-2 2-methyl-1-phenyl-1,3-butanedione 

Downstream Products

• 6668-24-2 2-methyl-1-phenyl-1,3-butanedione 
• 132608-44-7 2-(2-acetyl-2-benzoylethyl)furan 
• 132608-45-8 2,5-bis(2-acetyl-2-benzoylethyl)furan 
• 87606-29-9 5-benzoyl-2-methoxy-6-methyl-3,4-dihydro-2H-pyran 
• 88404-95-9 2-(4-Hydroxy-2-oxo-2H-chromen-3-ylmethyl)-1-phenyl-butane-1,3-dione 
• 132397-67-2 5-benzoyl-2-methoxy-2,6-dimethyl-3,4-dihydro-2H-pyran 
• 87606-34-6 (6-ethoxy-2-methyl-5,6-dihydro-4H-pyran-3-yl)phenylmethanone 
• 132397-65-0 5-acetyl-2-ethoxy-6-phenyl-3,4-dihydro-2H-pyran 
• 132397-70-7 4-benzylidene-5-oxohexanal 
• 88404-97-1 3,4-dihydro-2H-pyrano<3,2-c><1>benzopyran-5-one 
• 88404-97-1 3,4-dihydro-2H-pyrano<3,2-c><1>benzopyran-5-one 
• 344348-47-6 2-ethoxy-5-(1-hydroxyphenylmethyl)-6-methyl-3,4-dihydro-2H-pyran 

Relevant academic research and scientific papers

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).

Efficient α-methylenation of carbonyl compounds in ionic liquids at room temperature

The application of several 1-butyl-3-methylimidazolium (BMIM) salt ionic liquids as solvent in the α-methylenation of carbonyl compounds at room temperature is reported. The ionic liquid [BMIM][NTf2] gave a clean reaction in a short time and good yields of several α-methylene carbonyl compounds. This ionic liquid was reused without affecting the reaction rates or yields over seven runs. Georg Thieme Verlag Stuttgart.