130525-41-6

Basic information

• Product Name: 2,7-DI-TERT-BUTYL-9,9-DIMETHYLXANTHENE
• Synonyms: 2,7-DI-TERT-BUTYL-9,9-DIMETHYLXANTHENE;2,7-Di-tert-butyl-9,9-diMethyl-9H-xanthene;2,7-Di-tert-butyl-9,9-dimethylxanthene 97%
• CAS NO: 130525-41-6
• Molecular Formula: C₂₃H₃₀O
• Molecular Weight: 322.48
• Product Categories: Heterocyclic Compounds;Heterocyclic Building Blocks;O-Containing;Others
• Mol File: 130525-41-6.mol

Chemical Properties

• Melting Point: 188-192 °C(lit.)
• Boiling Point: 370.2°C at 760 mmHg
• Flash Point: 175.3°C
• Appearance: /
• Density: 0.98g/cm³
• Vapor Pressure: 2.39E-05mmHg at 25°C
• Refractive Index: 1.529
• CAS DataBase Reference: 2,7-DI-TERT-BUTYL-9,9-DIMETHYLXANTHENE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,7-DI-TERT-BUTYL-9,9-DIMETHYLXANTHENE(130525-41-6)
• EPA Substance Registry System: 2,7-DI-TERT-BUTYL-9,9-DIMETHYLXANTHENE(130525-41-6)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 3
• Hazardous Substances Data: 130525-41-6(Hazardous Substances Data)

Usage

Uses

1. Chemical Synthesis:
2,7-Di-tert-butyl-9,9-dimethylxanthene is used as a key intermediate in the synthesis of various organic compounds, including 4,5-diamino-9,9′-dimethylxanthene. Its unique structure allows for further functionalization and the creation of new molecules with specific properties.
2. Ligand Synthesis:
In the field of coordination chemistry, 2,7-di-tert-butyl-9,9-dimethylxanthene is used as a starting material for the synthesis of a new series of diphosphine ligands. These ligands are essential in homogeneous catalysis, where they can enhance the efficiency and selectivity of various chemical reactions.
3. Pharmaceutical Applications:
Although not explicitly mentioned in the provided materials, the unique structure of 2,7-di-tert-butyl-9,9-dimethylxanthene may also make it a candidate for pharmaceutical applications, such as the development of new drugs or drug delivery systems. Its potential use in this area would depend on further research and development.

InChI:InChI=1/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

Upstream product

• 19814-75-6 9,9-dimethylxanthene 
• 507-20-0 tertiary butyl chloride 

Downstream Products

• 790673-04-0 (E)-2,7-di-tert-butyl-9,9-dimethyl-5-(phenyldiazenyl)-9H-xanthen-4-amine 
• 607374-42-5 N-(2,7-di-tert-butyl-9,9-dimethyl-5-phenylazo-9H-xanthen-4-yl)-N',N'-diethyl-terephthalamide 
• 607374-43-6 N-(2,7-di-tert-butyl-9,9-dimethyl-5-phenylazo-9H-xanthen-4-yl)-N',N'-diethyl-terephthalamide 
• 130525-39-2 2,7-di-t-butyl-9,9-dimethyl-4,5-xanthenedicarboxylic acid 
• 130525-43-8 4,5-dibromo-2,7-di-tert-butyl-9,9-dimethyl-9H-xanthene 
• 314754-57-9 2,7-di-tert-butyl-4,5-bis(chloromethyl)-9,9-dimethyl-9H-xanthene 

Relevant articles and documents

Anthracene derivative-based exciplex luminescent material and preparation method and application thereof

The structural formula of the exciplex luminescent material based on anthracene derivatives is as shown in the following formula X2A. Compared with common exciplex materials, the material has no dependence on the concentration and can achieve the luminescence of the exciplex in dilute solution. The invention also provides a preparation method of the anthracene derivative-based exciplex luminescent material, the reaction condition is mild, and the yield is high. The invention further provides an application of the anthracene derivative-based exciplex luminescent material.

Structurally strained cyclic xanthene dimers: A model for the rigid crown ether moiety in the reduced graphene oxide framework

Highly strained cyclic xanthene dimers, which serve as models for reduced graphene oxide (RGO), were synthesized by Ni(0) mediated homo-coupling reactions. The dimers are obtained as highly stable colorless solids. X-ray crystallographic analysis of a tetra-tert-butyl derivative demonstrates that it possesses a highly strained structure with an extremely short non-bonded O￡O distance (2.5662(44) ?). The results of variable temperature NMR experiments show that no signal broadening occurs even at 398 K, indicating that conformational flipping requires considerably high energy.

Enhancements in catalytic reactivity and selectivity of homobimetallic complexes containing heteroditopic ligands

Rh(i) and Ir(i) homobimetallic complexes were synthesised using a heteroditopic ligand system on a xanthene scaffold containing a monodentate N-heterocyclic carbene ligand and a bidentate bis(pyrazol-1-yl)methane ligand. The complexes were tested as catalysts for the two-step dihydroalkoxylation and two-step hydroamination/hydrosilylation reactions. This is the first known report of an organometallic group 9 complex, Ir(i) bimetallic complex, 13, to selectively favour the opposite spirocyclisation product from that reported in the literature, 14cvs.14b. The Ir(i) homobimetallic complex catalyses the intramolecular hydroamination reaction of alkynamines efficiently and proved to be a highly active catalyst for promoting the subsequent hydrosilylation of the pyrrolines; completing the hydrosilylation reactions in less than 40 seconds. A chloro-bridged bimetallic species was observed in the solid state, revealing that the COD co-ligands present underwent an oxidation.

Convergent functional groups. 9. Complexation in new molecular clefts

Two new 2,7-di-tert-alkyl-9,9-dimethylxanthene-4,5-dicarboxylic acids are prepared as organic soluble, U-shaped modules for the construction of molecular hosts. Condensation of two diacid units with spacers (e.g., hydroquinone, 4,4′-biphenol, and 2,6-diaminonaphthalene) gives large structures capable of assuming cleftlike shapes that complex sizable guests such as DABCO, quinine, quinidine, and quinoxaline-2,3-dione. The xanthene diacids and their derivatives are shown to contain intramolecular hydrogen bonds that organize the binding sites and modify their chemical properties.