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376965

Sigma-Aldrich

2,7-Di-tert-butyl-9,9-dimethylxanthene

97%

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About This Item

Empirical Formula (Hill Notation):
C23H30O
CAS Number:
Molecular Weight:
322.48
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

97%

mp

188-192 °C (lit.)

SMILES string

CC(C)(C)c1ccc2Oc3ccc(cc3C(C)(C)c2c1)C(C)(C)C

InChI

1S/C23H30O/c1-21(2,3)15-9-11-19-17(13-15)23(7,8)18-14-16(22(4,5)6)10-12-20(18)24-19/h9-14H,1-8H3

InChI key

COCYABCDIOEUAC-UHFFFAOYSA-N

General description

Synthesis of a new series of diphosphine ligands based on 2,7-di-tert-butyl-9,9-dimethylxanthene has been reported.

Application

2,7-Di-tert-butyl-9,9-dimethylxanthene may be used in the preparation of 4,5-diamino-9,9′-dimethylxanthene.

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

Certificates of Analysis (COA)

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Phenoxaphosphine-Based diphosphine ligands. synthesis and application in the hydroformylation reaction.
Zuidema E, et al.
Organometallics, 29(5), 1210-1221 (2010)
Selective acylation of 4, 5-diamino-9, 9'-dimethylxanthene through an aggregation effect.
Mu?iz FM, et al.
Tetrahedron Letters, 49(5), 790-793 (2008)
Antra Ganguly et al.
SLAS technology, 25(1), 25-32 (2019-10-17)
Misclassification of an acute disease condition as chronic and vice versa by electrochemical sweat biomarker sensors can cause significant psychological, emotional, and financial stress among patients. To achieve higher accuracy in distinguishing between a chronic condition and an acute condition

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