88912-81-6

Basic information

• Product Name: 4H-1-Benzopyran, 4-(diphenylmethylene)-2-(2-phenylethenyl)-
• CAS NO: 88912-81-6
• Molecular Formula: C30H22O
• Molecular Weight: 398.504
• Mol File: 88912-81-6.mol

Chemical Properties

• CAS DataBase Reference: 4H-1-Benzopyran, 4-(diphenylmethylene)-2-(2-phenylethenyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 4H-1-Benzopyran, 4-(diphenylmethylene)-2-(2-phenylethenyl)-(88912-81-6)
• EPA Substance Registry System: 4H-1-Benzopyran, 4-(diphenylmethylene)-2-(2-phenylethenyl)-(88912-81-6)

Safety Data

• Hazardous Substances Data: 88912-81-6(Hazardous Substances Data)

Upstream product

• 51138-54-6 2-styryl-4-thiochromone 
• 908093-98-1 diazodiphenylmethane 

Downstream Products

• 88912-87-2 Ethyl 2-cyano-2-<2-(2-phenylethenyl)-4H-1-benzopyran-4-ylidene>acetate 
• 88912-85-0 2-<2-(2-Phenylethenyl)-4H-1-benzopyran-4-ylidene>malononitrile 
• 119-61-9 benzophenone 
• 39103-38-3 (E)-2-styrylchromone 

Relevant articles and documents

Reactions with 2-Methyl- and 2-Styryl-4-thiochromones

Diazoalkanes react with 2-methyl- and 2-styryl-4-thiochromones to yield the 1,3-dithiolanes 1 and/or ethylenes 2-4.The latter are cleaved with thionyl chloride to give the corresponding ketones, while on fusion with sulfur they afford the corresponding thioketones.By condensation with compounds containing active hydrogen, such as malononitrile and ethyl cyanoacetate, the 2-methyl- and 2-styryl-4-thiochromones yield the compounds 5.Oxidation of 2-methyl- and 2-styryl-4-thiochromones was accomplished by yellow mercury(II) oxide as well as with tetrahalo-o-benzoquinones to give the corresponding ketones.The biological activity of some selected comounds prepared during this work has been tested towards Gram-positive and Gram-negative bacteria.