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379123

Sigma-Aldrich

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

97%

Sinónimos:

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

Fórmula empírica (notación de Hill):
C23H28Br2O
Número de CAS:
130525-43-8
Peso molecular:
480.28
MDL number:
MFCD00134486
UNSPSC Code:
12352100
PubChem Substance ID:
24863616
NACRES:
NA.22

assay

97%

form

solid

mp

260-262 °C (lit.)

functional group

bromo

SMILES string

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

InChI key

OJJSJAIHWCFVBK-UHFFFAOYSA-N

Categorías relacionadas

General description

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

Application

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
BGBC2609V
01101JJ
08913KH
10224JH
11027BH

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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
Dimethylxanthene-and dibenzofuran-diamido complexes of titanium.
Porter RM and Danopoulos AA.
Polyhedron, 25(4), 859-863 (2006)
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)
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)
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)

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