821-88-5

Basic information

• Product Name: 1,1-dichlorononane
• Synonyms: 1,1-Dichlorononane; nonane, 1,1-dichloro-
• CAS NO: 821-88-5
• Molecular Formula: C₉H₁₈Cl₂
• Molecular Weight: 197.1452
• Mol File: 821-88-5.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 233.9°C at 760 mmHg
• Flash Point: 91.1°C
• Density: 0.984g/cm³
• Vapor Pressure: 0.0833mmHg at 25°C
• Refractive Index: 1.446
• CAS DataBase Reference: 1,1-dichlorononane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-dichlorononane(821-88-5)
• EPA Substance Registry System: 1,1-dichlorononane(821-88-5)

Safety Data

• Hazardous Substances Data: 821-88-5(Hazardous Substances Data)

Usage

Physical state

Colorless liquid

Solubility in water

Insoluble

Main use

Intermediate in the synthesis of other chemicals

Additional uses

a. Solvent
b. Chemical intermediate in the manufacture of dyes, perfumes, and pharmaceuticals

Bioaccumulation potential

Low

Environmental persistence

Not expected to persist in the environment

Aquatic organism risk

Potential risk if released into water bodies

Human health effects

a. Respiratory irritation
b. Central nervous system depression (at high concentrations)

Upstream product

• 67-66-3 chloroform 
• 111-66-0 oct-1-ene 
• 1071-84-7 1,1,1-trichlorononane 
• 66217-56-9 4,4,5,5-tetramethyl-2-octyl-[1,3,2]dioxaborolane 
• 124-19-6 nonan-1-al 

Relevant articles and documents

Chemistry of the wittig reaction, IV Simple conversion of aldehydes to 1,1-dichloroalkane and 1,1-dichloro-1-alkene derivatives, useful intermediates for the synthesis of acetylenic compounds

The formation of 1,1-dichloroalkanes and 1,1-dichloro-1-alkenes from aldehyde is described using triphenylphosphine - carbon tetrachloride reagent system. Different products can be formed by changing the reaction conditions.

The activation of carbon-chlorine bonds in per- and polyfluoroalkyl chlorides: DMSO-induced hydroperfluoroalkylation of alkenes and alkynes with sodium dithionite

In DMSO, the addition reactions of perfluoroalkyl chlorides, R(F)Cl, to alkenes or alkynes can occur smoothly in the presence of 1.5 equiv of Na2S2O4 and NaHCO3 at 75-80 °C for 4-10 h to give the corresponding adducts (RCH2CH2RF or RCH = CHR(F)). Ethyl chlorofluoro- (1f), chlorodifluoro- (1g) acetates, even nonfluorinated compounds, such as ethyl dichloro- (1h), chloro- (1i) acetates, and chloroform (1j) can undergo the similar reaction. Treatment of ω-iodo (or chloro-) perfluoroalkyl chlorides [X(CF2)(n) Cl, n = 2, 4, X= I or Cl] with > 3 equiv of alkenes and Na2SO4 gives directly the symmetrically disubstituted alkanes (RCH2CH2)2(CF2)(n). The symmetrically and unsymmetrically disubstituted adducts RCH2CH2(CF2)(n)CH2CH2R' from ω-iodoperfluoroalkyl chlorides can be also obtained stepwise, i.e., through the further addition reactions of monoadducts, RCH2CH2(CF2)(n)Cl to olefins. However, for α,ω- dichloroperfluoroalkanes, the similarly stepwise reactions with an alkene is not clean, both bis-adducts and the corresponding ω-hydrides, RCH2CH2(CF2)(n)H as byproducts are also formed. In the absence of alkenes or alkynes, per- and polyfluoroalkyl chlorides can be converted to their sulfinate salts and sulfonyl chlorides.

HYDROGEN MIGRATION ON 1,1-DICHLOROALKYL RADICALS

-