242487-89-4

Upstream product

• 2579-22-8 Phenylpropargyl aldehyde 
• 17573-94-3 4-ethynyl-N,N-dimethylaniline 
• 40230-97-5 N,N-dimethyl-4-[(trimethylsilyl)ethynyl]aniline 
• 586-77-6 4-bromo-N,N-dimethylaniline 

Downstream Products

• 242488-01-3 Δ-4H-2-[4-(dimethylamino)phenyl]-6-phenyltelluropyran-4-one 
• 242488-00-2 Δ-4H-2-[4-(dimethylamino)phenyl]-6-phenylselenopyran-4-one 
• 242487-99-6 Δ-4H-2-[4-(dimethylamino)phenyl]-6-phenylthiopyran-4-one 
• 242487-93-0 1-phenyl-5-(4-N,N-dimethylaminophenyl)-1,4-pentadiyn-3-one 

Relevant academic research and scientific papers

Chalcogenopyranones from disodium chalcogenide additions to 1,4- pentadiyn-3-ones. The role of enol ethers as intermediates

Enol ethers 9 are formed as a mixture of E- and Z-isomers from the addition of ethanol to 1,4-pentadiyn-3-ones 2 in sodium ethoxide/ethanol. The enol ethers react with disodium chalcogenides to give the corresponding 2,6- disubstituted chalcogenopyranones

Synthesis and evaluation of chalcogenopyrylium dyes as potential sensitizers for the photodynamic therapy of cancer

A series of thiopyrylium (2), selenopyrylium (3), and telluropyrylium dyes (4) was prepared via the addition of Grignard reagents to either 2,6- di(4-dimethylamino)phenylchalcogenopyran-4-ones (5a) or 2-[4- (dimethylamino)phenyl]-6-phenylchalcogenopyran-4