Description

(2-T-Butyl-1-Ethynyl)Diisopropoxyborane is a specialized organoboron reagent featuring a sterically hindered tert-butyl group and an ethynyl moiety. This compound matters as a critical building block in advanced organic synthesis, enabling the formation of complex molecular architectures with high precision. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for applications such as Suzuki-Miyaura cross-coupling and the synthesis of novel boron-containing polymers.

Application

• Key intermediate in Suzuki-Miyaura cross-coupling reactions for constructing biaryl and heterobiaryl structures prevalent in active pharmaceutical ingredients (APIs).
• Building block for the synthesis of advanced organic electronic materials, including polymers and small molecules for OLEDs and OFETs.
• Precursor in the development of novel boron-based ligands and catalysts used in asymmetric synthesis.
• Research chemical for exploring new carbon-boron bond formation methodologies in academic and industrial laboratories.
• Starting material for the preparation of functionalized alkynes with applications in click chemistry and bioconjugation.
• Used in the synthesis of agrochemical intermediates requiring specific boron-containing motifs.

Basic Information

Product Name	(2-T-Butyl-1-Ethynyl)Diisopropoxyborane
CAS No.	121021-24-7
Molecular Formula	C13H25BO2
Molecular Weight	224.15 g/mol
Synonyms	Diisopropoxy(2-tert-butyl-1-ethynyl)borane; (2-tert-Butylethynyl)diisopropoxyborane; 2-tert-Butyl-1-ethynylboronic acid diisopropyl ester; B-(2-tert-Butylethynyl)boronic acid diisopropyl ester; Diisopropyl (2-tert-butylethynyl)boronate; (2-Tert-butylethynyl)diisopropoxyborane
EINECS	Contact for details

Quality Control

Our (2-T-Butyl-1-Ethynyl)Diisopropoxyborane is produced under stringent conditions to ensure batch-to-batch consistency and high purity, suitable for sensitive synthetic applications. All products undergo rigorous quality testing, including advanced chromatographic and spectroscopic analysis, to ensure compliance with exacting industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC / 11B NMR)	≥ 95.0%
Water Content (Karl Fischer)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.