Description

Di-tert-Butyl(3-(tert-Butyl)-4-Methoxy-2,3-Dihydrobenzo[D][1,3]Oxaphosphol-2-Yl)Phosphine Oxide is a specialized organophosphorus compound featuring a unique bicyclic oxaphosphole structure. This compound is valued as a high-performance ligand precursor or catalyst component in advanced synthetic chemistry, particularly for cross-coupling and polymerization reactions. It is essential for R&D and production in the pharmaceutical, agrochemical, and advanced materials sectors, where precise molecular control is critical.

Application

• As a ligand precursor for transition metal catalysts in cross-coupling reactions (e.g., Suzuki, Negishi).
• As a key intermediate in the synthesis of novel phosphine ligands for asymmetric catalysis.
• In the research and development of new pharmaceutical active ingredients and agrochemicals.
• As a modifier or additive in polymer chemistry to influence material properties.
• For academic and industrial research in organometallic chemistry and catalysis.
• Potential use in the synthesis of flame retardants or other functional materials.

Basic Information

Product Name	Di-tert-Butyl(3-(tert-Butyl)-4-Methoxy-2,3-Dihydrobenzo[D][1,3]Oxaphosphol-2-Yl)Phosphine Oxide
CAS No.	1788085-46-0
Molecular Formula	C21H35O2P2
Molecular Weight	396.45 g/mol
Synonyms	2-(Di-tert-butylphosphinyl)-3-tert-butyl-4-methoxy-2,3-dihydro-1,3-benzoxaphosphole 2-oxide; 3-tert-Butyl-4-methoxy-2,3-dihydrobenzo[d][1,3]oxaphosphol-2-yl-di-tert-butylphosphine oxide; Di-tert-butyl(3-tert-butyl-4-methoxy-2,3-dihydrobenzo[d][1,3]oxaphosphol-2-yl)phosphine oxide; Bicyclic tert-butyl phosphine oxide ligand; Oxaphosphole-based phosphine oxide.
EINECS	Contact for details

Quality Control

Our Di-tert-Butyl(3-(tert-Butyl)-4-Methoxy-2,3-Dihydrobenzo[D][1,3]Oxaphosphol-2-Yl)Phosphine Oxide is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. All products undergo rigorous analytical testing, including NMR, HPLC, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity and identity is provided with each shipment to support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.