1121-37-5

Basic information

• Product Name: Dicyclopropyl ketone
• Synonyms: Dicyclopropyl ketone,95%;Methanone,dicyclopropyl-;Dicyclopropyl Ketone, 97+%;DICYCLOPROPYLMETHANONE;DICYCLOPROPYL KETONE;CYCLOPROPYL KETONE;Dicyclopropylmethanone 96%;DICYCLOPROPYLMETHYLOXIME
• CAS NO: 1121-37-5
• Molecular Formula: C₇H₁₀O
• Molecular Weight: 110.1537
• EINECS: 214-331-5
• Product Categories: C7 to C8;Carbonyl Compounds;Ketones;Pharmaceutical Intermediates;Cyclopropanes;Simple 3-Membered Ring Compounds
• Mol File: 1121-37-5.mol
• Article Data: 29

Chemical Properties

• Melting Point: 44.0-44.5 °C
• Boiling Point: 160-162 °C(lit.)
• Flash Point: 103 °F
• Appearance: clear colourless to yellowish liquid
• Density: 0.977 g/mL at 25 °C(lit.)
• Vapor Pressure: 2.32mmHg at 25°C
• Refractive Index: n20/D 1.467(lit.)
• Storage Temp.: Store below +30°C.
• Water Solubility: Soluble in water.
• BRN: 774172
• CAS DataBase Reference: Dicyclopropyl ketone(CAS DataBase Reference)
• NIST Chemistry Reference: Dicyclopropyl ketone(1121-37-5)
• EPA Substance Registry System: Dicyclopropyl ketone(1121-37-5)

Safety Data

• Hazard Codes: F,Xn
• Statements: 10-36/37/38-20/21/22-5
• Safety Statements: 16-36-26-3
• RIDADR: UN 1224 3/PG 3
• WGK Germany: 3
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 1121-37-5(Hazardous Substances Data)

Usage

Chemical Properties

clear colourless to yellowish liquid

Uses

Dicyclopropyl Ketone is used as a reagent in the synthesis of a new class of potent and selective agonists of dimeric carbamoylguanidine-type histamine H2 receptor ligands. Also used in the preparation of chemical space analogs of PNU-282,987 and SSR180711, which have nicotinic receptor activity.

Preparation

Preparation of Dicyclopropyl ketoneReaction: To a one liter three-necked flask fitted with a reflux condenser and a metal Hershberg stirrer there was added 600 ml. of 20% sodium hydroxide and 165g . (0.9mole) of 1,7 -dichloro-4-heptanone. The mixture was refluxed for 30 minutes with vigorous stirring, then steam distilled until the characteristic odor of dicyclopropyl ketone was absent from the distillate. The distillate was then saturated with potassium carbonate, the upper layer separated and the water layer extracted once with ether. The combined organic layers were dried over potassium carbonate. after removal of the ether there was dist illed 69g. (70%) of dicyclopropyl ketone, b.p . 69° at 20 mm, nD25 1.4648-1.4654.

InChI:InChI=1/C7H10O/c8-7(5-1-2-5)6-3-4-6/h5-6H,1-4H2

Upstream product

• 60538-60-5 bis(α-bromocyclopropyl) ketone 
• 29833-83-8 triphenyl phosphite ozonide 
• 23603-63-6 1,1,2-tricyclopropylethene 
• 38381-24-7 dicyclopropylmethanethione 
• 87639-45-0 4-cyclopropylbut-3-yn-1-yl tosylate 
• 5325-94-0 N-Ethoxycarbonylpiperidine 
• 3002-94-6 cyclopropyllithium 
• 23719-80-4 cyclopropylmagnesium bromide 
• 5500-21-0 cyclopropropanecarbonitrile 
• 160320-40-1 3,3-dicyclopropyl-4-methoxy-4-(3-methoxyphenyl)-1,2-dioxetane 
• 40624-07-5 1,7-dichloro-4-heptanone 
• 7647-01-0 hydrogenchloride 
• 67-56-1 methanol 
• 2625-39-0 dicyclopropyl-nitro-methane 

Downstream Products

• 17206-84-7 ethyl 3-hydroxy-3,3-dicyclopropylpropanoate 
• 13017-60-2 (dicyclopropylmethylene)-malononitrile 
• 95101-81-8 2-(4-methoxyphenyl)-1,1-dicyclopropyl-1-ethanol 
• 14300-33-5 dicyclopropylmethanol 
• 618429-00-8 1.2-Methylen-decanon-⁽³⁾ 
• 925687-20-3 dicyclopropyl(1H-2-imidazolyl)methanol 
• 171606-94-3 cyclopropyl [1-[(2,4-difluorophenyl)hydroxymethyl]cyclopropyl]-methanone 
• 815-24-7 Di-t-butyl ketone 
• 1391728-11-2 1,1-dicyclopropyl-1-hydroxy-3,3-dimethylbutan-2-one 

Related news

Theoretical studies of the photochemical ring fission reaction of Dicyclopropyl ketone (cas 1121-37-5) and the Norrish type II reaction of cyclopropyl 2,2-dimethyl cyclopropyl ketone09/30/2019

The cyclopropane ring fission reaction of dicyclopropyl ketone and the Norrish type II reaction of cyclopropyl 2,2-dimethyl cyclopropyl ketone have been studied using the AM1 semiempirical molecular orbital method. Both reactions proceed from the first excited singlet 1(n→ π∗) states and the p...detailed

Conjugated cyclopropyls: the molecular structures and conformations of 1,1-dicyclopropylethene and Dicyclopropyl ketone (cas 1121-37-5) as studied by gas phase electron diffraction and ab initio calculations09/28/2019

The molecular structure and conformations of the two structurally related molecules 1,1-dicyclopropylethene and dicyclopropyl ketone have been studied experimentally by the gas electron diffraction method. For the former molecule a conformational mixture of 59(8)% gg (as 47% g+g+, and 11% g+g−) ...detailed

Short communicationNew β-adrenoceptor-blocking agents derived from Dicyclopropyl ketone (cas 1121-37-5) oxime: influence of amino substituents on in vivo activity10/01/2019

A series of oximinopropanolamines derived from dicyclopropyl ketone, in which the amine substituents were alkyl, cycloalkyl, aryl and aralkyl groups, has been synthesized. The β-adrenergic blocking properties were determined on anaesthetized rats. Two N-aralkyl derivatives were found to be as p...detailed

Structure and conformational dynamics of the Dicyclopropyl ketone (cas 1121-37-5) in the ground electronic state09/24/2019

Geometric parameters, harmonic and anharmonic vibrational frequencies, conformer energy differences and barriers to internal rotation were obtained for dicyclopropyl ketone (DCPK) in the ground electronic state through MP2, DFT, CCSD and CCSD(T) calculations. VFPA was used to improve the estimat...detailed

Relevant articles and documents

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Electrochemical Reduction of Bis(α-bromocyclopropyl) Ketone

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Gold nanoparticles supported on the periodic mesoporous organosilicas as efficient and reusable catalyst for room temperature aerobic oxidation of alcohols

Gold nanoparticles supported on the channels of a bifunctional periodic mesoporous organosilica, were found to be a highly efficient catalyst system for the aerobic oxidation of various types of alcohols into their corresponding aldehydes and ketones at room temperature. The catalyst showed no significant loss of efficiency for the aerobic oxidation of benzyl alcohol to give benzaldehyde after 7 reaction cycles. Copyright

B(C6F5)3-Catalyzed Hydrosilylation of Vinylcyclopropanes

A hydrosilylation of vinylcyclopropanes (VCPs) catalyzed by the strong boron Lewis acid B(C6F5)3 is reported. For the majority of VCPs, little or no ring opening of the cyclopropyl unit is observed. Conversely, for VCPs with bulky R groups, such as ortho-substituted aryl rings or branched alkyl residues, ring opening is the exclusive reaction pathway. This finding is explained by the thwarted hydride delivery to a sterically shielded, β-silicon-stabilized cyclopropylcarbinyl cation intermediate.

A double-ring propyl alkone improved process for synthesizing (by machine translation)

The invention discloses a double-ring improved process for synthesizing propyl alkone. First of all, the reaction is an inert organic solvent in the presence of and solid sodium alcoholate, γ? Butyrolactone dehydration condensation between the molecules occurs, produce intermediate; then to the adding concentrated hydrochloric acid in the reaction system, generating a decarboxylation reaction, 1,7? Dichloroborane? 4? Heptanone crude; finally, in action ShiShimonoseki ahead into a double-ring n-propyl ketone. The invention has the advantage of using an inert organic solvent and solid sodium alcoholate, does not need the recovery carries on mellowly is greatly improved controllability and reaction, reduction reaction by-product, the product yield is higher than the conventional technical 15-20%, the production cost is reduced, reducing the environmental pressure, product quality is improved. (by machine translation)

SBA-15-Functionalized 3-Oxo-ABNO as Recyclable Catalyst for Aerobic Oxidation of Alcohols under Metal-Free Conditions

The nitroxyl radical 3-oxo-9-azabicyclo [3.3.1]nonane-N-oxyl (3-oxo-ABNO) has been prepared using a simple protocol. This organocatalyst is found to be an efficient catalyst for the aerobic oxidation of a wide variety of alcohols under metal-free conditions. In addition, the preparation and characterization of a supported version of 3-oxo-ABNO on ordered mesoporous silica SBA-15 (SABNO) is described for the first time. The catalyst has been characterized using several techniques including simultaneous thermal analysis (STA), transmission electron microscopy (TEM), and nitrogen sorption analysis. This catalyst exhibits catalytic performance comparable to its homogeneous analogue and much superior catalytic activity in comparison with (2,2,6,6-tetramethylpiperidin-1-yl)oxy (TEMPO) for the aerobic oxidation of almost the same range of alcohols under identical reaction conditions. It is also found that SABNO can be conveniently recovered and reused at least 12 times without significant effect on its catalytic efficiency.