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About This Item
Linear Formula:
(CH3)2C5H6(=O)
CAS Number:
Molecular Weight:
112.17
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
Assay
96%
refractive index
n20/D 1.433 (lit.)
bp
143-145 °C (lit.)
density
0.894 g/mL at 25 °C (lit.)
functional group
ketone
SMILES string
CC1(C)CCCC1=O
InChI
1S/C7H12O/c1-7(2)5-3-4-6(7)8/h3-5H2,1-2H3
InChI key
FTGZMZBYOHMEPS-UHFFFAOYSA-N
General description
2,2-Dimethylcyclopentanone is a ketone. Synthesis of various C-2 substituted vitamin D derivatives with a 2,2-dimethylcyclopentanone unit in side chains has been reported. Regioselective synthesis of 2,2-dimethylcyclopentanone, via its enolate precursor regioselectively obtained using the 2-pyrrolidone magnesium salt, has been reported.
Application
2,2-Dimethylcyclopentanone enolate may be used as starting reagent in the enantioselective synthesis of chiral phosphines belonging to the P-aryl-2-phosphabicyclo[3.3.0]octane family (PBO). It may be used in the synthesis of:
- 2,6,6-trimethyl-2-azaspiro[4.4]nonane-1,3-dione, a spirosuccinimide moiety of asperparaline A
- novel spiropentanopyrrolizidine oxime alkaloids, namely 2′,3′,5′,6′,7′,7a′-hexahydro-2,2-dimethylspirocyclopentane-1
- δ,δ-dimethyl-δ-valerolactone, via Baeyer-Villiger oxidation
Signal Word
Warning
Hazard Statements
Hazard Classifications
Flam. Liq. 3
Storage Class Code
3 - Flammable liquids
WGK
WGK 3
Flash Point(F)
91.4 °F - closed cup
Flash Point(C)
33 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Regioselective Synthesis of 2, 2-Dimethylcyclopentanone Using 2-Pyrrolidone Magnesium Salt as Electrogenerated Base.
Bonafoux D, et al.
Synthetic Communications, 28(1), 93-98 (1998)
Hiroshi Saito et al.
The Journal of steroid biochemistry and molecular biology, 136, 3-8 (2013-02-19)
Up to the present, numerous vitamin D derivatives have been synthesized, but most of them have straight side chains, and there are few publications described about in vitro and in vivo evaluations on bone by vitamin D derivatives. In our
S Tanimori et al.
Bioscience, biotechnology, and biochemistry, 64(8), 1758-1760 (2000-09-19)
2,6,6-Trimethyl-2-azaspiro[4.4]nonane-1,3-dione (9), a spirosuccinimide moiety of asperparaline A (1), was synthesized by starting from 2,2-dimethylcyclopentanone (4) via trinitrile 6 in five steps in a moderate yield. This conversion establishes a model study for synthesis of the spirosuccinimide moiety of asperparaline
Edwin Vedejs et al.
Journal of the American Chemical Society, 125(14), 4166-4173 (2003-04-03)
A new class of chiral phosphines belonging to the P-aryl-2-phosphabicyclo[3.3.0]octane family (PBO) has been prepared by enantioselective synthesis starting from lactate esters and 2,2-dimethylcyclopentanone enolate 5. A selective enolate alkylation method has been developed for preparation of 9 and 10
Synthesis of pyrrolizidine oximes 222 and 236: Novel alkaloids of a dendrobatid poison frog.
Rutchinson KD, et al.
Tetrahedron, 50(21), 6129-6136 (1994)
Articles
The Baeyer-Villiger oxidation is the oxidative cleavage of a carbon-carbon bond adjacent to a carbonyl, which converts the ketones to esters and the cyclic ketones to lactones.
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