Isopropoxyboronic acid pinacol ester, CAS No. 61676-62-8

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61676-62-8

Catalog No. EBD2184875

CAS 61676-62-8

Name Isopropoxyboronic acid pinacol ester

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Basic Information

Synonyms: Isopropoxyboronicacidpinacolester Isopropylpinacolylborate IsopropylPinacolBorate 4,4,5,5-tetramethyl-2-(propan-2-yloxy)-1,3,2-dioxaborolane 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane propan-2-yl3-(dihydroxyboranyl)benzoate

Molecular Formula: C9H19BO3

Molecular Weight: 186.06

MDL Number: MFCD00192241

Categories: Synthetic Chemistry > Organic Building Blocks > Boronic Acids and Boronic Esters

Product Description:

Isopropoxyboronic acid pinacol ester is a bifunctional organoboron compound featuring an isopropoxy group directly attached to the boron atom and a pinacol ester moiety. It serves as a versatile synthetic building block and a key reagent in organic synthesis, particularly for the construction of carbon-carbon bonds via Suzuki-Miyaura cross-coupling reactions. The isopropoxy group can act as a leaving group, enabling transesterification or direct coupling with aryl/vinyl halides under palladium catalysis. This compound is widely utilized in medicinal chemistry for the rapid assembly of complex molecular architectures, including biaryl and heteroaryl systems. It is also employed as a protecting group for boronic acids and as a precursor for the synthesis of other boronate esters. Due to its stability and reactivity, it is a staple in both academic research and industrial process development for pharmaceutical and agrochemical intermediates.

Physical Properties

Boiling Point: 73 °C/15 mmHg(lit.)

Flash Point: 43 °C

Density: 0.912 g/mL at 25 °C(lit.)

Refractivity: n20/D 1.409(lit.)

Storage: 0-6°C

Safety Information

Packing Level: III

Hazard Category: 3

Transport Codes: 1993C

Analytical Data

Appearance: colorless liquid