3-Methoxy-1-propyn-1-ylboronic acid pinacol ester

CAS 634196-63-7C10H17BO3Chemical Synthesis

3-Methoxy-1-propyn-1-ylboronic acid pinacol ester (CAS 634196-63-7) is an alkynyl boronate ester with the molecular formula C10H17BO3. This organometallic reagent is primarily utilized in organic synthesis for carbon-carbon bond-forming reactions. Its structure allows for participation in processes such as enyne cross-metathesis and Alder-ene reactions, making it a valuable building block in synthetic chemistry.

IUPAC: 2-(3-Methoxy-1-propyn-1-yl)-4,4,5,5-tetramethyl-(1,3,2)dioxaborolane
Synonyms: 2-(3-Methoxy-1-propyn-1-yl)-4,4,5,5-tetramethyl-(1,3,2)dioxaborolane

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3-Methoxy-1-propyn-1-ylboronic acid pinacol ester (C10H17BO3) — chemical structure, CAS 634196-63-7; Chemistry, fine chemical supplied by Tech Serve Solutions

Alkynyl Boronate EstersBoronate EstersChemical SynthesisOrganometallic Reagents

01 /Applications

Carbon-Carbon Bond Formation

Alkynylboronates, including this compound, are key reagents in various regio- and stereoselective carbon-carbon bond-forming processes. They enable complex molecule construction in synthetic organic chemistry.

Enyne Cross-Metathesis

This boronate ester can participate in enyne cross-metathesis reactions. This transformation is a powerful tool for constructing conjugated enynes, important structural motifs in natural products and advanced materials.

Alder Ene Reaction

The compound is suitable for use in Alder ene reactions. These reactions allow for the formation of a new carbon-carbon sigma bond and a carbon-carbon pi bond, typically involving an alkene and an unsaturated component.

02 /Properties

Molecular weight	196.05
Empirical formula	C10H17BO3
Assay	96%
Density	0.982 g/mL at 25 °C
Refractive index	n20/D 1.45
Storage temperature	2-8°C
Application	Alkynylboronates participate in a variety of regio- and stereoselective carbon-carbon bond forming processes including enyne cross-metathesis and the Alder ene reaction.1,2

03 /Safety & handling

Flash point	170 °C / 338 °F
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.

04 /Identifiers & registry

CAS number

634196-63-7

MDL number

MFCD08705273

05 /Quality & supply

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.

06 /Frequently asked questions

What is 3-Methoxy-1-propyn-1-ylboronic acid pinacol ester used for?

3-Methoxy-1-propyn-1-ylboronic acid pinacol ester is used as a reagent in organic synthesis for carbon-carbon bond-forming reactions, including enyne cross-metathesis and Alder-ene reactions.

What is the CAS number and formula for this compound?

The CAS number is 634196-63-7 and the empirical formula is C10H17BO3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this compound with an assay of 96%. It is not represented as USP, BP, or EP grade.

What are the safety and handling considerations for this chemical?

This chemical has a flash point of 170 °C (338 °F) and is classified under WGK Germany 3. Handle with appropriate personal protective equipment in a well-ventilated area.