90827-51-3

Basic information

• Product Name: 2-(4-Chlorphenyl)-1-(4-chlorphenylamino)-6-(4-methylphenyl)-5-(4-methylphenylamino)benzo<1,2-c:4,5-c'>dipyrrol-4,8(2H,6H)-dion
• CAS NO: 90827-51-3
• Molecular Weight: 617.534
• Mol File: 90827-51-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-(4-Chlorphenyl)-1-(4-chlorphenylamino)-6-(4-methylphenyl)-5-(4-methylphenylamino)benzo<1,2-c:4,5-c'>dipyrrol-4,8(2H,6H)-dion(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(4-Chlorphenyl)-1-(4-chlorphenylamino)-6-(4-methylphenyl)-5-(4-methylphenylamino)benzo<1,2-c:4,5-c'>dipyrrol-4,8(2H,6H)-dion(90827-51-3)
• EPA Substance Registry System: 2-(4-Chlorphenyl)-1-(4-chlorphenylamino)-6-(4-methylphenyl)-5-(4-methylphenylamino)benzo<1,2-c:4,5-c'>dipyrrol-4,8(2H,6H)-dion(90827-51-3)

Safety Data

• Hazardous Substances Data: 90827-51-3(Hazardous Substances Data)

Upstream product

• 106-51-4 p-benzoquinone 
• 7175-47-5 4-methylphenyl isocyanide 
• 1885-81-0 p-chlorophenyl isocyanide 
• 79482-91-0 2-(4-Methylphenyl)-1-(4-methylphenylamino)-2H-benzopyrrol-4,7-dion 

Relevant articles and documents

Reactions with Isocyanides. - Synthesis of Dark-blue Dyes from 1,4-Quinones and Aryl Isocyanides

1,4-Benzoquinone reacts with aryl isocyanides 2a - d in boiling toluene or xylene forming dark-blue 1:2 and 1:4 adducts, the 4,7-isoindolediones 3a - d and the 1,5- and 1,7-bis(arylamino)benzodipyrrolediones 4a - c and 5a - c, respectively, which can be separated by chromatography.The structure of the 4-methylphenyl isocyanide adducts 3b, 4b, and 5b is established by NMR spectroscopy.The 1:2 adduct 3b reacts with two moles of 4-methylphenyl isocyanide (2b) affording the isomeric 1:4 adducts 4b and 5b.However, in a similar reaction with 4-chloro-phenyl isocyanide (2c) surprisingly only the 1,5-bis(arylamino) derivative 8 is isolated. 1,4-Naphthoquinone (10) reacts with 4-methylphenyl (2b) or 4-nitrophenyl isocyanide (2d) to yield the 4,9-benzoisoindoles 11b and d, respectively.