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379123

Sigma-Aldrich

4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene

97%

Sinonimo/i:

4,5-Dibromo-2,7-bis(1,1-dimethylethyl)-9,9-dimethyl-9H-xanthene, 4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene

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About This Item

Formula empirica (notazione di Hill):
C23H28Br2O
Numero CAS:
130525-43-8
Peso molecolare:
480.28
Numero MDL:
MFCD00134486
Codice UNSPSC:
12352100
ID PubChem:
24863616
NACRES:
NA.22

Saggio

97%

Forma fisica

solid

Punto di fusione

260-262 °C (lit.)

Stringa SMILE

CC(C)(C)c1cc(Br)c2Oc3c(Br)cc(cc3C(C)(C)c2c1)C(C)(C)C

InChI

1S/C23H28Br2O/c1-21(2,3)13-9-15-19(17(24)11-13)26-20-16(23(15,7)8)10-14(12-18(20)25)22(4,5)6/h9-12H,1-8H3
OJJSJAIHWCFVBK-UHFFFAOYSA-N

Categorie correlate

Descrizione generale

4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene is a heterocyclic building block.

Applicazioni

4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene may be used as starting reagent for the synthesis of 4,5-(N,N′-bis-cyclohexylamino)-2,7-di-tert-butyl-9,9-dimethyl-xanthene and oligothiophene tweezer molecule bearing two quaterthiophene moieties.
4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene may be used in the synthesis of:
  • 2,7-di-tert-butyl-4,5-diiodo-9,9-dimethylxanthene
  • new NON-donor ligand, 4,5-bis(2,6-diisopropylanilino)-2,7-di-tert-butyl-9,9-dimethylxanthene
  • bis(diethylamino)xantphos, via one-pot metalation reaction and and quenching with bis(diethylamino)chlorophosphine

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

Certificati d'analisi (COA)

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Dimethylxanthene-and dibenzofuran-diamido complexes of titanium.
Porter RM and Danopoulos AA.
Polyhedron, 25(4), 859-863 (2006)
Lisa D Julian et al.
Journal of the American Chemical Society, 132(39), 13813-13822 (2010-09-16)
We report a rhodium catalyst that exhibits high reactivity for the hydroamination of primary aminoalkenes that are unbiased toward cyclization and that possess functional groups incompatible with more electrophilic hydroamination catalysts. The rhodium catalyst contains an unusual diaminophosphine ligand (L1)
Synthesis, structure, and properties of aromatic ring-layered polymers containing ferrocene as a terminal unit.
Morisaki Y, et al.
Journal of Inorganic and Organometallic Polymers and Materials, 19(1), 104-112 (2009)
Extremely Stable Thorium (IV) Dialkyl Complexes Supported by Rigid Tridentate 4, 5-Bis (anilido) xanthene and 2, 6-Bis (anilidomethyl) pyridine Ligands.
Cruz CA, et al.
Organometallics, 26(3), 692-701 (2007)
Ryo Takita et al.
Organic letters, 10(21), 5003-5005 (2008-10-09)
An oligothiophene tweezer molecule, which has two quaterthiophene moieties connected to create an electrochemically activated hinge, has been synthesized. Two-electron oxidation of the tweezer molecule produces an intramolecular pi-dimer between the two oligothiophene moieties at room temperature as confirmed by

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