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252832

Sigma-Aldrich

Tropone

97%

Synonym(s):

2,4,6-Cycloheptatrien-1-one

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About This Item

Empirical Formula (Hill Notation):
C7H6O
CAS Number:
Molecular Weight:
106.12
Beilstein/REAXYS Number:
1902335
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

assay

97%

form

liquid

refractive index

n20/D 1.615 (lit.)

bp

113 °C/15 mmHg (lit.)

density

1.094 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

O=C1C=CC=CC=C1

InChI

1S/C7H6O/c8-7-5-3-1-2-4-6-7/h1-6H

InChI key

QVWDCTQRORVHHT-UHFFFAOYSA-N

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General description

Metal-catalyzed [6+3] cycloaddition of tropone with azomethine ylides has been reported.

Application

Tropone has been used in synthesis of:
  • bicyclic δ-lactones via heterocyclic carbine-catalyzed [8+3] annulation pathway
  • 6,7-benzobicyclo [3.2.2] nona-3,6,8-trien-2-one via thermal addition to bezyne

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Strahil Berkov et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 59(3-4), 184-186 (2004-07-10)
The alkaloid spectra of Datura innoxia plants grown in Egypt and Bulgaria were investigated by GC-MS. Thirty-eight alkaloids were detected in the roots, leaves and fruits of the plants. Five new alkaloids for D. innoxia are reported. Alkaloid spectra of
Reaction of tropone with benzyne. Formation and photoisomerization of 6, 7-benzobicyclo [3.2. 2] nona-3, 6, 8-trien-2-one.
Ciabattoni J, et al.
Journal of the American Chemical Society, 89(11), 2778-2779 (1967)
Young-Sun Do et al.
The Journal of organic chemistry, 74(2), 917-920 (2008-12-05)
A ring-expansion protocol that consisted of the 1,2-addition of various enolate nucleophiles to 6-trimethylsiloxy-2-cyclohexene-1-one (1) and the NaIO(4)-promoted oxidative ring opening of the resulting diols 2, followed by an intramolecular Knoevenagel condensation, furnished versatile dihydrotropones 6. Maintaining Z-configuration in the
M Carmen Carreño et al.
Chemical communications (Cambridge, England), (8)(8), 1007-1009 (2005-02-19)
Synthesis of 4-aminotropones through a cyclization-ring expansion process occurs in a single step and with excellent yields from 4-amino-2,5-cyclohexadienones (p-quinamines) bearing a 4-sulfinyl or sulfonyl methyl group.
Honglei Liu et al.
Journal of the American Chemical Society, 136(6), 2625-2629 (2014-01-24)
The first metal-catalyzed [6 + 3] cycloaddition of tropone with azomethine ylides has been developed. With the use of a chiral ferrocenylphosphine-copper(I) complex as the catalyst, the asymmetric variant of the [6 + 3] cycloaddition has also been successfully achieved.

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