trans-3-Methoxy-1-propenylboronic acid pinacol ester
trans-3-Methoxy-1-propenylboronic acid pinacol ester (CAS: 165059-42-7, C10H19BO3) is an organoboronate ester with a molecular weight of 198.07 g/mol. It is a valuable building block in organic synthesis, particularly for cross-coupling reactions. This compound is utilized in the development of complex organic molecules and is supplied by Tech Serve Solutions for research and development purposes.
- IUPAC
- (E)-2-(3-Methoxy-1-propen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Organic Synthesis Intermediate
This boronate ester serves as a versatile intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds. It is instrumental in the synthesis of complex organic structures.
Pharmaceutical Research
Its utility in constructing novel molecular scaffolds makes it relevant for pharmaceutical research and the development of potential drug candidates. It facilitates the introduction of specific alkenyl functionalities.
Materials Science
The compound can be employed in the synthesis of specialised organic materials where precise structural control is required. Its reactivity profile supports the creation of polymers and functional organic systems.
| Molecular weight | 198.07 |
|---|---|
| Empirical formula | C10H19BO3 |
| Assay | 95% |
| Boiling point | 229-230 °C(lit.) |
| Density | 0.933 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4430(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 101 °C / 213.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 trans-3-Methoxy-1-propenylboronic acid pinacol ester used for?
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trans-3-Methoxy-1-propenylboronic acid pinacol ester is primarily used as an intermediate in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions to create carbon-carbon bonds, and in pharmaceutical research and materials science.
What are the CAS number and formula for this compound?
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The CAS number is 165059-42-7 and the empirical formula (Hill notation) is C10H19BO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should trans-3-Methoxy-1-propenylboronic acid pinacol ester be handled safely?
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This compound is a Warning substance, causing skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure good ventilation.
Is this chemical controlled or scheduled?
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The provided data does not indicate that this chemical is controlled or scheduled.
How is trans-3-Methoxy-1-propenylboronic acid pinacol ester packed and exported?
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Products are carefully packed according to international shipping regulations and exported globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales team via the website or direct inquiry, providing the product name and CAS number.
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