4591-28-0

Basic information

• Product Name: dichloroketene
• Synonyms: dichloroketene;Einecs 224-980-6
• CAS NO: 4591-28-0
• Molecular Formula: C₂Cl₂O
• Molecular Weight: 110.9268
• EINECS: 224-980-6
• Mol File: 4591-28-0.mol
• Article Data: 18

Chemical Properties

• Boiling Point: 57.1°Cat760mmHg
• Flash Point: 0.7°C
• Appearance: /
• Density: 1.385g/cm³
• Vapor Pressure: 221mmHg at 25°C
• Refractive Index: 1.438
• CAS DataBase Reference: dichloroketene(CAS DataBase Reference)
• NIST Chemistry Reference: dichloroketene(4591-28-0)
• EPA Substance Registry System: dichloroketene(4591-28-0)

Safety Data

• Hazardous Substances Data: 4591-28-0(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Tetrahedron Letters, 24, p. 23, 1983 DOI: 10.1016/S0040-4039(00)81316-7

InChI:InChI=1/C2Cl2O/c3-2(4)1-5

Upstream product

• 34069-94-8 trichloro-acetyl bromide 
• 57880-71-4 3,3-dichloro-4-(p-methoxyphenyl)-1-phenyl-2-azetidinone 
• 90177-25-6 trichlorovinyl radical 
• 76-02-8 trifluoroacetyl chloride 
• 79-36-7 dichloroacethyl chloride 

Downstream Products

• 87830-83-9 2-(dichloracetyl)-5-methyl-1,3-thiazole 
• 87830-82-8 2-(dichloracetyl)-4-methyl-1,3-thiazole 
• 88303-76-8 2,2-Dichloro-3,3,4-trimethylcyclobutanone 
• 66239-90-5 dichloro-2,2-tetramethyl-3,3,4,4 cyclobutanone 
• 142428-11-3 5,5-dichloro-6-phenyl-6-cyclopropylspiro<2,3>hexan-4-one 
• 142428-13-5 5,5-dichloro-6,6-diphenylspiro<2,3>hexan-4-one 
• 142428-10-2 5,5-dichloro-6-(4-methoxyphenyl)spiro<2,3>hexan-4-one 
• 159848-13-2 (5R,1'R)-2-methyl-5-(1'-methyl-2',2'-dichlorocyclobuta-3'-onyl)cyclohex-2-enone 
• 159848-16-5 (5R,1'S)-2-methyl-5-(1'-methyl-2',2'-dichlorocyclobuta-3'-o-nyl)cyclohex-2-enone 
• 141493-68-7 3-chloro-1-N-tosyloamino-1-azaazulen-2(1H)-one 
• 141517-22-8 N-(3,3-Dichloro-2-oxo-3,3a-dihydro-2H-cyclohepta[b]pyrrol-1-yl)-4-methyl-benzenesulfonamide 
• 142428-08-8 5,5-dichloro-6-cyclopropylspiro<2,3>hexan-4-one 
• 142428-12-4 5,5-dichloro-6-methyl-6-phenylspiro<2,3>hexan-4-one 
• 141493-67-6 1-anilino-3-chloro-1-azaazulen-2(1H)-one 

Relevant articles and documents

Synthesis and absolute configuration of (+)-lineatin, the pheromone of Trypodendron lineatum

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Efficient approach to 1,2-diazepines via formal diazomethylene insertion into the C-C bond of cyclobutenones

Efficient monocyclic 1,2-diazepine formation via a tandem electrocyclization reaction of cyclobutenones with lithiodiazoacetate is demonstrated. The reaction proceeds through an oxy anion-accelerated 4π-ring opening of cyclobutene followed by an 8π-ring closure of the resultant oxy anion-substituted diazo-diene under mild conditions to furnish a 1,2-diazepine via formal diazomethylene insertion into the C-C bond of cyclobutenone.

Flash Vacuum Thermolysis of Four Membered Ring Containing Nitrogen Atom. Part III. Thermal Decomposition of β-Lactams

The thermal decomposition of β-lactams under FVT conditions was studied. It has been found that the regiochemistry of the ring cleavage depends on the nature of substituents. 1,4-Diradical stepwise mechanism of these reactions has been postulated. Key words: β-lactams, flash vacuum thermolysis

STERICALLY SCREENED HALOGENOCYCLOBUTANONES VIII. ADDITION OF DICHLOROKETENE TO METHYLENECYCLOPROPANES SUBSTITUTED AT THE DOUBLE BOND

-Cycloaddition of dichloroketene to metylenecyclopropanes substituted at the double bond takes place regiospecifically with the formation of spirohexanones, containing a carbonyl group at position 4.Under electron impact the obtained compounds undergo dissociation mainly into substituted dichloroethylene and cyclopropylidenecarbonyl.This can be used as a test for determining the mutual arrangement of the carbonyl group in the spiro fragment in the adducts of dichloroketene and methylenecyclopropanes.