22582-40-7

Upstream product

• 86302-43-4 (tert-Butoxycarbonylmethylene)triphenylphosphorane 
• 55439-08-2 3-Hydroxy-2-methyl-1-oxo-1-phenylprop-2-ene 
• 673-32-5 1-Phenylprop-1-yne 
• 79-10-7 acrylic acid 
• 108-31-6 maleic anhydride 
• 110-16-7 maleic acid 
• 93-55-0 1-phenyl-propan-1-one 
• 105837-39-6 5,5-dichloro-2-methyl-1-phenyl-penta-2,4-dien-1-one 
• 51975-22-5 5-methyl-6-phenyl-3,4-dihydro-2H-pyran-2-one 

Downstream Products

• 10226-00-3 2-methyl-1,3,5-triphenyl-pentane-1,5-dione 
• 25552-23-2 (E)-5-Hydroxy-2,5-dimethyl-1-phenyl-hex-3-en-1-one 
• 25552-22-1 2,3-Dimethyl-1-phenyl-hexandion-(1,5) 
• 25552-21-0 2.5-Dimethyl-1-phenyl-hexadien-(2.4)-on 
• 110939-53-2 7-methyl-1-phenyl-bicyclo[2.2.2]oct-7-ene-2,3,5,6-tetracarboxylic acid-2,3;5,6-dianhydride 

Relevant academic research and scientific papers

A convenient synthesis of 2H-pyran-2-one derivatives

A simple procedure for the synthesis of 2H-pyran-2-ones 1 is described: selective Wittig olefination of keto aldehydes at the aldehyde group followed by a cyclization in acidic medium.

Rhodium(III)-Catalyzed Oxidative Annulation of Acrylic Acid with Alkynes: An Easy Approach to the Synthesis of α-Pyrones

A highly efficient rhodium(III)-catalyzed direct oxidative annulation of acrylic acid with alkynes to form α-pyrones was developed. Various substituted acrylic acids were compatible in this transformation, affording the corresponding products in moderate to excellent yields under mild conditions.

Ruthenium-catalyzed decarbonylative addition reaction of anhydrides with alkynes: A facile synthesis of isocoumarins and α-pyrones

A novel ruthenium catalyzed straightforward and efficient synthesis of isocoumarin and α-pyrone derivatives has been accomplished by the decarbonylative addition reaction of anhydrides with alkynes under thermal conditions.

Rhodium-catalyzed decarboxylative and dehydrogenative coupling of maleic acids with alkynes and alkenes

The dehydrogenative coupling of maleic acids with alkynes proceeds smoothly accompanied by decarboxylation under rhodium catalysis to produce variously substituted α-pyrone derivatives. The catalyst system is also applicable to the coupling with 1,3-diyne