92172-54-8

Basic information

• Product Name: 3-(diphenylmethylene)-2-methyl-2,3-dihydro-1H-isoindole-1-one
• Synonyms: 3-(diphenylmethylene)-2-methyl-2,3-dihydro-1H-isoindole-1-one
• CAS NO: 92172-54-8
• Molecular Weight: 311.383
• Mol File: 92172-54-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 3-(diphenylmethylene)-2-methyl-2,3-dihydro-1H-isoindole-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-(diphenylmethylene)-2-methyl-2,3-dihydro-1H-isoindole-1-one(92172-54-8)
• EPA Substance Registry System: 3-(diphenylmethylene)-2-methyl-2,3-dihydro-1H-isoindole-1-one(92172-54-8)

Safety Data

• Hazardous Substances Data: 92172-54-8(Hazardous Substances Data)

Upstream product

• 525-06-4 diphenyl ketene 
• 14160-11-3 2-methyl-3-thioxo-2,3-dihydro-1H-isoindol-1-one 
• 94794-63-5 C₂₃H₁₉NOS 
• 103723-96-2 2-methyl-3,'3'-diphenyl-2,3-dihydro-1H-isoindole-3-spiro-2'-thietane-1,4-dione. 
• 530-48-3 1,1-Diphenylethylene 

Relevant articles and documents

PHOTOREACTIONS OF PHTHALIMIDE-THIETANES: FISSION OF THE THIETANE RING AND FORMATION OF 1,2-DITHIANES

Photolysis of N-methylmonothiophthalimide (1) in the presence of thietane (4) gave 1,2-dithiane (5) and 1,3-dithiane (6).The formation of 1,2-dithianes in the photoreaction of 1 with styrene derivatives (2) is explained in terms of the intermediacy of the phthalimide-thietanes.Photolysis of the thietane ring is also described.

Photochemical Cycloaddition of Thiocarbonyl Compounds to Diphenylketene and a Related Ketenimine

Diphenylketene undergoes photocycloaddition with N-methylthiophthalimide, N-methyldithiophthalimide or xanthene-9-thione, to give a spiro-adduct containing a thietan-2-one ring.The photoproducts from the thioimide substrates are themselves photolabile, eliminating COS to form an alkene.Diphenyl-N-(p-tolyl)ketenimine gives analogous 2-iminothietanes on irradiation with the thioimides.

PHOTOCYCLOADDITION REACTIONS OF N-METHYLTHIOPHTHALIMIDE

N-Methylthiophthalimide undergoes a photochemical cycloaddition reaction with 2,3-dimethylbut-2-ene or with stilbene to give products containing a spiro-thietane system; with 1,1-diphenylethene the product isolated is a diphenylmethyleneisoindoline.