2642-81-1

Basic information

• Product Name: 4,4'-ddnu
• Synonyms: 4,4'-ddnu;1,1-Bis(4-chlorophenyl)ethene;1,1-Di(4-chlorophenyl)ethene;1,1'-Ethenylidenebis(4-chlorobenzene);2,2-Bis(4-chlorophenyl)ethene;4,4'-Vinylidenebis(chlorobenzene);C06642;Unsym-bis(4'-chlorophenyl)ethylene
• CAS NO: 2642-81-1
• Molecular Formula: C₁₄H₁₀Cl₂
• Molecular Weight: 249.1352
• Mol File: 2642-81-1.mol
• Article Data: 62

Chemical Properties

• Melting Point: 84-85 °C
• Boiling Point: 349.6°Cat760mmHg
• Flash Point: 159°C
• Appearance: /
• Density: 1.21g/cm³
• CAS DataBase Reference: 4,4'-ddnu(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-ddnu(2642-81-1)
• EPA Substance Registry System: 4,4'-ddnu(2642-81-1)

Safety Data

• Hazardous Substances Data: 2642-81-1(Hazardous Substances Data)

Usage

General Description

4,4'-DDNU, or 4,4'-Dinitrodiphenylurea, is a chemical compound with a high melting point that is soluble in hot ethanol and other organic solvents. It is usually found as a pale-yellow crystalline solid and can be synthesized easily. This organic compound is an aromatic chemical and falls under the classification of "urea derivatives". Its chemical structure sees two nitrophenyl groups bonded together by a urea group at opposing ends of the molecule and its chemical properties, such as reactivity and stability, are heavily influenced by the nitrophenyl and the urea moieties. It lacks study in its effects on the environment and human health.

Upstream product

• 71-55-6 1,1,1-trichloroethane 
• 108-90-7 chlorobenzene 
• 64-18-6 formic acid 
• 80-06-8 chlorfenethol 
• 2387-16-8 1,1-dichloro-2,2-diphenylethane 
• 85336-63-6 2,2-bis(p-chlorophenyl)ethyltrimethylammonium bromide 
• 1033-26-7 4,4'-dinitrobenzophenone 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 115-32-2 Dicofol 
• 1073-67-2 4-vinylbenzyl chloride 
• 106-39-8 bromochlorobenzene 
• 637-87-6 1-Chloro-4-iodobenzene 
• 50-29-3 p,p'-DDT 
• 5835-98-3 1,1-bis(4-chlorophenyl)-2-propyn-1-ol 

Downstream Products

• 19685-59-7 4,4'-(cyclopropane-1,1-diyl)bis(chlorobenzene) 
• 53017-82-6 2,2-bis-(4-chloro-phenyl)-cyclopropanecarboxylic acid ethyl ester 
• 106783-57-7 [2-chloro-1,1-bis-(4-chloro-phenyl)-ethyl]-methyl ether 
• 19618-36-1 3,3-bis(4-chlorophenyl)acrylic acid 
• 703396-03-6 2,2-Bis-(4-chloro-phenyl)-ethenesulfonic acid 
• 39179-71-0 C₂₇H₂₀Cl₂ 
• 72735-93-4 2-chloro-5-(p-chlorophenyl)benzanthracene-7,12-dione 
• 93404-08-1 1,6-dichloro-8,8-bis(p-chlorophenyl)-3,4-benzylbicyclo<4.2.0>oct-3-ene-2,5-dione 
• 93404-10-5 2-chloro-3-<2,2-bis(p-chlorophenyl)ethenyl>-1,4-naphthoquinone 
• 142605-77-4 4,4-bis(4-chlorophenyl)-1-hydroxy-6-methyl-2,3-dioxa<4.4.0>decan-7-one 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 142605-80-9 2,2,9,9-tetrakis(4-chlorophenyl)octahydro-3,4,7,8-tetraoxabenzindene-4a,6a-diol 
• 22219-36-9 1,1-bis(4-chlorophenyl)-2,2-dibromocyclopropane 
• 84060-82-2 1-Brom-2,2-bis(4-chlorphenyl)-1-iodcyclopropan 

Relevant articles and documents

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Selective synthesis of iminodioxaspirononanes and diazaspirononanes using formic acid-activated Mn(III) oxidation of N1,N3-disubstitued malonamides with 1,1-diarylethenes

The Mn(III)-based oxidation of N1,N3-disubstituted malonamides with alkenes by Kurosawa spirolactonization using malonic acid afforded iminodihydrofurans. A similar reaction with Mn(OAc)3, which was activated by HCO2

Synthesis of Quinolines via the Metal-free Visible-Light-Mediated Radical Azidation of Cyclopropenes

We report the synthesis of quinolines using cyclopropenes and an azidobenziodazolone (ABZ) hypervalent iodine reagent as an azide radical source under visible-light irradiation. Multisubstituted quinoline products were obtained in 34-81% yield. The reaction was most efficient for 3-trifluoromethylcyclopropenes, affording valuable 4-trifluoromethylquinolines. The transformation probably proceeds through the cyclization of an iminyl radical formed by the addition of the azide radical on the cyclopropene double bond, followed by ring-opening and fragmentation.

Intermolecular [4 + 2] process of N-acyliminium ions with simple olefins for construction of functional substituted-1,3-oxazinan-2-ones

An efficient approach to functionalized 4,6-disubstituted-and 4,6,6-trisubstituted-1,3-oxazinan-2-ones skeleton has been developed through the reaction of semicyclic N,O-acetals 4a and 4b with 1,1-disubstituted ethylenes 5 or 8. As a result of such a [4 +