823-69-8

Basic information

• Product Name: 7,7-Dichlorodicyclo[4.1.0]heptane
• Synonyms: 7,7-Dichlorobicyclo[4.1.0]heptane;7,7-Dichlorodicyclo[4.1.0]heptane;7,7-dichloronorcarane;Bicyclo[4.1.0]heptane, 7,7-dichloro-;1,2-Dichloromethylene cyclohexane;NSC 55261
• CAS NO: 823-69-8
• Molecular Formula: C₇H₁₀Cl₂
• Molecular Weight: 165.06
• Mol File: 823-69-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 103-103.5℃ (15 Torr)
• Flash Point: 82℃
• Appearance: /
• Density: 1.208 g/mL at 25 °C
• Vapor Pressure: 0.312mmHg at 25°C
• Refractive Index: 1.5041 (589.3 nm 20℃)
• Stability: Stable. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: 7,7-Dichlorodicyclo[4.1.0]heptane(CAS DataBase Reference)
• NIST Chemistry Reference: 7,7-Dichlorodicyclo[4.1.0]heptane(823-69-8)
• EPA Substance Registry System: 7,7-Dichlorodicyclo[4.1.0]heptane(823-69-8)

Safety Data

• Hazard Codes: Xn
• Statements: 22-36
• Safety Statements: 26
• WGK Germany: 3
• Hazardous Substances Data: 823-69-8(Hazardous Substances Data)

Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 81, p. 5008, 1959 DOI: 10.1021/ja01527a074

InChI:InChI=1/C7H10Cl2/c8-7(9)5-3-1-2-4-6(5)7/h5-6H,1-4H2

Upstream product

• 67-66-3 chloroform 
• 110-83-8 cyclohexene 
• 56-23-5 tetrachloromethane 
• 96-36-6 methyl phosphite 

Downstream Products

• 66972-63-2 1-phenyl-9H-fluorene 
• 4410-75-7 (cyclohexylmethyl)benzene 
• 65-85-0 benzoic acid 
• 1060633-74-0 7-[1-(p-methoxyphenyl)ethenyl]bicyclo[4.1.0]heptane 
• 1061617-22-8 7-[(E)-5-phenyl-1-(3-phenylpropyl)-1-pentenyl]bicyclo[4.1.0]heptane 
• 1060633-69-3 7-[5-phenyl-1-(3-phenylpropyl)-1-pentenylidene]bicyclo[4.1.0]heptane 
• 149117-38-4 meso-(1R*,6S*,7R*)-7-[(Z)-1,2-diphenylethenyl]bicyclo[4.1.0]heptane 
• 1060633-62-6 meso-(1R*,6S*,7S*)-7-[(E)-1,2-diphenylethenyl]bicyclo[4.1.0]heptane 
• 17685-52-8 triiron dodecarbonyl 
• 874-68-0 1-cyclohexylidene-2-propanone 
• 1655-03-4 1-cyclohex-1-enyl-propan-1-one 

Relevant articles and documents

x - a highly reactive titanium hydride and an active species in the McMurry reaction

The complex reacts with catalytically-prepared solid magnesium hydride (MgH2*) or dissolved magnesium hydride (MgH'2) with evolution of hydrogen to give a highly reactive titanium hydride, x (1).The well-known low valent titanium species, obtained by reduction of TiCl3 with LiAlH4, utilized in the McMurry reaction, has been shown to be 1.An X-ray absorption spectroscopy study (EXAFS) of 1 reveals that the Ti absorber is surrounded by O (from THF) and Cl atoms plus two types of Ti neighbors.Possible structural models for 1 compatible with the EXAFS results are proposed.Complex 1 is an active reagent for the coupling reaction of benzophenone to give tetraphenylethene.During the reaction hydrogen is liberated and the inorganic side product has been shown to be titanium(III) oxychloride; thus the McMurry reaction employing 1 as the reagent can be described by . On the basis of these results, a new interpretation of the mechanism for the McMurry reaction is presented.Complex 1 also undergoes a number of carbenoid type reactions, which may proceed via a "titanium carbenoid" intermediate 9a-c. Key words: Titanium; Hydride; Magnesium; EXAFS

SONOLYSIS OF CHLOROFORM.

Chloroform is decomposed by irradiation with ultrasonic waves to yield a large number of products. The major products are various unsaturated compounds. Decomposition occurs only in the presence of a monoatomic- or diatomic gas. Free radicals and carbenes are postulated as intermediates of sonolysis which can only be scavenged by volatile additives such as O//2 or c-hexene. In the presence of 10% c-hexene, the rate of sonolysis of chloroform is increased and various additional products are formed. Pure c-hexene is decomposed at a much lower rate than chloroform. The sonolysis of chloroform proceeds at a rate comparable to that of water.