Diethylmethoxyborane
Diethylmethoxyborane (CAS 7397-46-8) is an organoboron compound with the linear formula (C2H5)2BOCH3 and a molecular weight of 99.97 g/mol. Supplied by TSS at 97% purity, this reagent is primarily utilised in various synthetic applications, including ring-opening polymerisation, homologation reactions, and stereoselective synthesis. Its utility extends to materials science and as a catalyst in specific polymerisation processes.
- IUPAC
- Diethylborinic acid methyl ester
- Synonyms
- Diethylborinic acid methyl ester
Catalysis in Polymerisation
Diethylmethoxyborane serves as a catalyst or reactant in polymerisation processes, including ring-opening metathesis and vinyl insertion polymerisation. It is also instrumental in borane-mediated controlled radical polymerisation for synthesising fluoropolymers.
Organic Synthesis Reagent
This compound is employed in various organic transformations such as Reformatsky and quaternary Claisen condensations. It also plays a role in enantioselective synthesis, for instance, in the preparation of carba-furanose sugars, and in homologation reactions involving sulfonium ylides.
Materials Science Applications
The borane promotes adhesion to low surface energy plastics, indicating its potential use in materials science for enhancing substrate compatibility and surface properties through trialkylborane mediated interactions.
| Molecular weight | 99.97 |
|---|---|
| Linear formula | (C2H5)2BOCH3 |
| Assay | 97% |
| Density | 0.761 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.387(lit.) |
| Concentration | 1.0 M in THF |
| Application | Reactant involved in: • Studying a catalyst for ring-opening metathesis polymerization / vinyl insertion polymerization1• Reformatsky / quaternary Claisen condensations2• Enantioselective synthesis of carba-furanose sugars3• Borane-mediated control radical polymerization for synthesis of fluoropolymers4• Homologation reactions with sulfonium ylides5• Trialkylborane promoted adhesion to low surface energy plastics6 |
Hazard statements
- H225Highly flammable liquid and vapour
- H250Catches fire spontaneously if exposed to air
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P222Do not allow contact with air
- P231Handle under inert gas
- P422
| Flash point | -7 °C / 19.4 °F |
|---|---|
| Transport (UN / ADR) | UN 3392 4.2 / PGI |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 17-20/21/22-34-43-48/22-53 |
| Safety statements (S) | 6-26-36/37/39-43-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diethylmethoxyborane used for?
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Diethylmethoxyborane is used as a reactant in various organic syntheses, including ring-opening polymerisation, Reformatsky/Claisen condensations, enantioselective synthesis of carba-furanose sugars, and homologation reactions. It also acts as a catalyst in certain polymerisation processes and promotes adhesion to plastics.
What are the CAS number and formula for Diethylmethoxyborane?
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The CAS number is 7397-46-8, and its linear formula is (C2H5)2BOCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diethylmethoxyborane with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Diethylmethoxyborane be handled safely?
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Diethylmethoxyborane is highly flammable (H225) and pyrophoric (H250), igniting spontaneously in air. It requires careful handling under an inert atmosphere, avoiding ignition sources, and using appropriate personal protective equipment. Refer to the Safety Data Sheet for full details.
How is Diethylmethoxyborane packed and shipped?
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Diethylmethoxyborane is shipped as UN 3392, Hazard Class 4.2, Packing Group I, requiring specialised packaging and transport procedures due to its pyrophoric nature. TSS exports fine chemicals globally.
How can I request a quote or sample?
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To request a quote or a sample of Diethylmethoxyborane, please contact our sales team through the website or by phone.
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