3-Methyl-2-butenylboronic acid pinacol ester
3-Methyl-2-butenylboronic acid pinacol ester (CAS: 141550-13-2), with the molecular formula C11H21BO2 and a molecular weight of 196.09 g/mol, is an organoboron compound. It functions as a versatile reagent in organic synthesis, particularly in carbon-carbon bond formation reactions. This ester is a key intermediate for introducing the 3-methyl-2-butenyl group into various molecular structures, finding utility in pharmaceutical research and materials science.
- IUPAC
- 2-(3-Methyl-but-2-enyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane,3,3-Dimethylallylboronic acid pinacol ester
Suzuki-Miyaura Coupling Reactions
This pinacol ester is frequently employed as a coupling partner in palladium-catalysed Suzuki-Miyaura reactions. It efficiently facilitates the formation of C-C bonds by reacting with aryl or vinyl halides and pseudohalides.
Organic Synthesis Intermediate
As a boronate ester, it serves as a stable and convenient precursor for various synthetic transformations. Its structure allows for controlled introduction of the prenyl moiety into complex organic molecules.
Pharmaceutical and Agrochemical Research
The compound is valuable in the synthesis of biologically active molecules, including potential drug candidates and agrochemicals, where the isoprenoid unit is a common structural motif.
| Molecular weight | 196.09 |
|---|---|
| Empirical formula | C11H21BO2 |
| Assay | 96% |
| Boiling point | 42-45 °C/0.6 mmHg |
| Density | 0.885 g/mL at 25 °C |
| Refractive index | n20/D 1.4395 |
| Storage temperature | 2-8°C |
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 76 °C / 168.8 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
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 3-Methyl-2-butenylboronic acid pinacol ester used for?
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3-Methyl-2-butenylboronic acid pinacol ester is primarily used as a reagent in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions for C-C bond formation and as an intermediate for introducing the 3-methyl-2-butenyl group into molecules.
What is the CAS number and molecular formula?
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The CAS number is 141550-13-2, and the molecular formula is C11H21BO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Methyl-2-butenylboronic acid pinacol ester with an assay of 96%. This product is not represented as USP, BP, EP, or any pharmacopoeia grade.
How should 3-Methyl-2-butenylboronic acid pinacol ester be handled and stored?
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Handling requires appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Store at temperatures between 2-8°C for optimal stability.
Is this compound regulated or controlled?
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Based on the provided data, there is no indication that this compound is a controlled substance. However, it is regulated for transport under NA 1993 / PGIII.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales department through the website or by phone, providing the product name and CAS number (141550-13-2).
How is this chemical exported?
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3-Methyl-2-butenylboronic acid pinacol ester is classified for transport under NA 1993 / PGIII, indicating it is shipped as a regulated material.
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