5,10-tetraMethylindeno[2,1-a]indene

Product Name: 5,10-tetraMethylindeno[2,1-a]indene
CAS No.: 89057-44-3
Chemical Name: 5,10-tetraMethylindeno[2,1-a]indene
Synonyms: 5,10-tetraMethylindeno[2,1-a]indene;1,2,5,10-Tetramethylindeno[2,1-a]indene;5,5,10,10-tetramethyl-Inden[2,1-a]Indene;5,5,10,10-tetramethylindeno[2,1-a]indene;5,5,10,10-TetraMethyl-5,10-dihydroindeno<2,1-a>inden;5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene;Indeno[2,1-a]indene, 5,10-dihydro-5,5,10,10-tetramethyl-
CBNumber: CB62640396
Molecular Formula: C20H20
Formula Weight: 260.37
MOL File: 89057-44-3.mol

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5,10-tetraMethylindeno[2,1-a]indene Property

Melting point:: 214℃
Boiling point:: 343.6±42.0 °C(Predicted)
Density: 1.10±0.1 g/cm3 (20 ºC 760 Torr)
storage temp.: Sealed in dry,Room Temperature

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

H319Causes serious eye irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

American Custom Chemicals Corporation

Product number: CHM0390496
Product name: 5,5,10,10-TETRAMETHYL-5,10-DIHYDROINDENO[2,1-A]INDENE
Purity: 95.00%
Packaging: 5MG
Price: $496.41
Updated: 2021/12/16

AK Scientific

Product number: 5743CU
Product name: 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene
Packaging: 1g
Price: $1835
Updated: 2021/12/16

Crysdot

Product number: CD43000055
Product name: 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene
Purity: 95+%
Packaging: 1g
Price: $1129
Updated: 2021/12/16

Alichem

Product number: 89057443
Product name: 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene
Packaging: 1g
Price: $1244.16
Updated: 2021/12/16

Arctom

Product number: SY148053
Product name: 5,5,10,10-Tetramethyl-5,10-dihydroindeno[2,1-a]indene
Purity: ≥95%
Packaging: 1g
Price: $1315
Updated: 2021/12/16

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5,10-tetraMethylindeno[2,1-a]indene Chemical Properties,Usage,Production

Synthesis

6543-29-9

74-88-4

89057-44-3

At about -78 °C, 2.04 g (10 mmol) of 5,10-tetrahydrodianaphthene (Intermediate I-3) and 37.5 mL (60 mmol) of n-butyllithium (1.60 M hexane solution) were gradually reacted in tetrahydrofuran. Subsequently, 3.8 mL (60 mmol) of iodomethane was added and the reaction mixture was stirred at room temperature for about 3 hours. Upon completion of the reaction, 5 mL of aqueous 1N hydrochloric acid was added to the mixture to quench the reaction. The organic phase was separated and the aqueous phase was extracted with dichloromethane (2 x 100 mL). The organic phases were combined and dried over magnesium sulfate, followed by evaporation of the solvent. The residue was separated and purified by silica gel column chromatography to afford 2.03 g of 5,10-tetramethyldiindene (Intermediate I-4) in 78% yield. The compound was characterized by mass spectrometry/fast atom bombardment mass spectrometry (MS/FAB). The calculated molecular weight of the molecular formula C20H20 was 260.37 and the measured value was 260.45.

References

[1] Patent: US2014/27721, 2014, A1. Location in patent: Paragraph 0127; 0131
[2] Patent: KR2016/56315, 2016, A. Location in patent: Paragraph 0197; 0198; 0205; 0206
[3] Patent: US9537104, 2017, B2. Location in patent: Page/Page column 77; 78; 79
[4] Patent: US2017/12205, 2017, A1. Location in patent: Paragraph 0223; 0230;0321

5,10-tetraMethylindeno[2,1-a]indene Preparation Products And Raw materials

Raw materials

Preparation Products

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5,10-tetraMethylindeno[2,1-a]indene Suppliers

China 39 India 2 United States 2 Global 43

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89057-44-3, 5,10-tetraMethylindeno[2,1-a]indeneRelated Search:

5,10-tetraMethylindeno[2,1-a]indene

5,5,10,10-TetraMethyl-5,10-dihydroindeno<2,1-a>inden

5,5,10,10-tetramethylindeno[2,1-a]indene

5,5,10,10-tetramethyl-Inden[2,1-a]Indene

1,2,5,10-Tetramethylindeno[2,1-a]indene

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89057-44-3