5663-04-7

Basic information

• Product Name: Triphenylurea
• Synonyms: Triphenylurea;1,1,3-Triphenylurea
• CAS NO: 5663-04-7
• Molecular Formula: C₁₉H₁₆N₂O
• Molecular Weight: 0
• Mol File: 5663-04-7.mol
• Article Data: 13

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Triphenylurea(CAS DataBase Reference)
• NIST Chemistry Reference: Triphenylurea(5663-04-7)
• EPA Substance Registry System: Triphenylurea(5663-04-7)

Safety Data

• Hazardous Substances Data: 5663-04-7(Hazardous Substances Data)

Upstream product

• 103-71-9 phenyl isocyanate 
• 122-39-4 diphenylamine 
• 67-66-3 chloroform 
• 83-01-2 diphenylcarbamic chloride 
• 62-53-3 aniline 
• 60506-39-0 2-phenylcarbamoyloxy-3a,4,7,7a-tetrahydro-4,7-methano-isoindole-1,3-dione 
• 6330-00-3 N,N,N'-Triphenylchlorformamidin 
• 18992-89-7 allyl N-phenylcarbamate 
• 17223-83-5 N_.N-diphenylcarbamoyl azide 
• 98-80-6 phenylboronic acid 
• 27779-01-7 diphenylcyanamide 
• 58109-40-3 diphenyliodonium hexafluorophosphate 
• 622-34-4 1-phenylcyanamide 
• 591-50-4 iodobenzene 

Downstream Products

• 20800-00-4 4-[(4-carboxyphenyl)amino]benzoic acid 
• 2908-76-1 bis(2,4-dinitrophenyl)amine 
• 35411-68-8 ethyl N-(2,4-dinitrophenylcarbamate) 
• 6268-35-5 ethyl N-(2,4,6-trinitrophenyl)carbamate 
• 103-71-9 phenyl isocyanate 
• 122-39-4 diphenylamine 
• 6330-00-3 N,N,N'-Triphenylchlorformamidin 
• 102-07-8 bis(diphenyl)urea 
• 621-12-5 1,4-diphenylsemicarbazide 
• 1538-74-5 N-phenyl-carbamic acid butyl ester 
• 32773-21-0 C₂₇H₂₁N₃O₂S₂ 
• 489-98-5 picramide 
• 62-53-3 aniline 
• 52764-39-3 pentaphenyl-guanidine 

Relevant articles and documents

Construction of Benzimidazolone Derivatives via Aryl Iodide Catalyzed Intramolecular Oxidative C-H Amination

The first aryl iodide catalyzed intramolecular C-H amination of phenylurea has been disclosed for high-efficiency synthesis of benzimidazolone derivatives in excellent yields (up to 97%) by an operationally simple one-step organocatalytic oxidative proces

Palladium-Catalyzed Synthesis of Symmetrical and Unsymmetrical Ureas Using Chromium Hexacarbonyl as a Convenient and Safe Alternative Carbonyl Source

Pd-catalyzed synthesis of urea derivatives from aryl iodides and different aliphatic and aromatic amines using sodium azide and chromium hexacarbonyl is described. In this process, carbonylation of aryl iodides, Curtius rearrangement of aroyl azides, and nucleophilic addition of amines sequentially occur to afford the products in good to excellent yields. This protocol is operationally simple and displays a broad substrates scope.

Structural Aspects of Thermally Cleavable Adducts Derived from the Reaction of Imidazolines with Isocyanates

The reaction of isocyanates with substituted imidazolines and the thermally induced cleavage of the resulting adducts are presented. For this purpose, reactions of various isocyanates [ethyl isocyanate, p-methylphenyl isocyanate, phenyl isocyanate, p-(trifluoromethyl)phenyl isocyanate] with 1-alkylimidazoline derivatives have been studied as a function of the substituent at the 2-position of the imidazoline ring. Three equivalents of isocyanate react with one equivalent of 1-ethylimidazoline to give a stoichiometric well-defined adduct. However, 1-ethyl-2-isopropylimidazoline reacts with isocyanates at 0 °C in another way, with formation of 2:1 adducts which belong to the family of 1,3-diphenyltetrahydroimidazo[1,2-a][1,3,5]triazine-2,4(1H,3H)-diones. The reaction of 1-ethyl-2-methylimidazoline with aromatic isocyanates at 0 °C also leads to 2:1 adducts, in this case of a malonamide type, which can react at 60 °C with an additional isocyanate equivalent to give the known pyrimidinediones. Thermal analysis (TG-MS/DSC) and trapping reactions with nucleophilic reagents, such as diphenylamine, show the release of isocyanate during the thermally induced cleavage reaction. Thus, blocked isocyanates are available by the reaction of isocyanates with 1-ethylimidazoline or 1-ethyl-2-isopropylimidazoline.