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371475

Sigma-Aldrich

2,2-Dimethylcyclopentanone

96%

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About This Item

Fórmula lineal:
(CH3)2C5H6(=O)
Número de CAS:
4541-32-6
Peso molecular:
112.17
MDL number:
MFCD00049164
UNSPSC Code:
12352100
PubChem Substance ID:
24863111
NACRES:
NA.22

Quality Level

200

assay

96%

refractive index

n20/D 1.433 (lit.)

bp

143-145 °C (lit.)

density

0.894 g/mL at 25 °C (lit.)

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

Categorías relacionadas

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

pictograms

Flame
GHS02

signalword

Warning

hcodes

H226

Hazard Classifications

Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

91.4 °F - closed cup

flash_point_c

33 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Sigma-Aldrich

P45605

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Sigma-Aldrich

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Sigma-Aldrich

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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)
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Artículos

Baeyer-Villiger Oxidation Reaction

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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