Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

379123

Sigma-Aldrich

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

97%

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C23H28Br2O
CAS Number:
130525-43-8
Molecular Weight:
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

Related Categories

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000245398
0000202074
0000175300
0000183534

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
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)
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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service