1242770-51-9

Basic information

• Product Name: 4-broMo-trans-beta-styrylboronic acid pinacol ester
• Synonyms: 4-broMo-trans-beta-styrylboronic acid pinacol ester;4-broMo-trans-beta-styrylboronic acid picol ester
• CAS NO: 1242770-51-9
• Molecular Formula: C₁₄H₁₈BBrO₂
• Molecular Weight: 327
• Mol File: 1242770-51-9.mol
• Article Data: 30

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 4-broMo-trans-beta-styrylboronic acid pinacol ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-broMo-trans-beta-styrylboronic acid pinacol ester(1242770-51-9)
• EPA Substance Registry System: 4-broMo-trans-beta-styrylboronic acid pinacol ester(1242770-51-9)

Safety Data

• Hazardous Substances Data: 1242770-51-9(Hazardous Substances Data)

Upstream product

• 766-96-1 4-bromo-1-ethynylbenzene 
• 73183-34-3 bis(pinacol)diborane 
• 25294-65-9 3-(4-bromophenyl)-2-propynoic acid 
• 100-42-5 styrene 
• 2039-82-9 1-bromo-4-ethenyl-benzene 
• 83947-56-2 4,4,5,5-tetramethyl-2-((E)-styryl)-[1,3,2]dioxaborolane 
• 25015-63-8 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane 
• 75927-49-0 pinacol vinylboronate 

Downstream Products

• 115665-68-4 (E)-1-bromo-4-(2-bromovinyl)benzene 
• 115665-77-5 (Z)-1-[2-bromovinyl]-4-bromobenzene 

Relevant articles and documents

Lithium diisobutyl-: Tert-butoxyaluminum hydride (LDBBA) catalyzed hydroboration of alkynes and imines with pinacolborane

Lithium diisobutyl-tert-butoxyaluminum hydride (LDBBA)-catalyzed hydroboration of alkynes with pinacolborane (HBpin) was demonstrated. The hydroboration proceeded more efficiently with LDBBA than with other aluminum hydrides and afforded alkenyl boronates in moderate to good yields. In addition, high-yielding LDBBA-catalyzed hydroboration of imines was achieved. The coordination of anionic aluminate with lithium enables effective hydride transfer for hydroboration.

Neosilyllithium-Catalyzed Hydroboration of Alkynes and Alkenes in the Presence of Pinacolborane (HBpin)

We report here a novel protocol for the hydroboration of alkynes and alkenes, which in the presence of neosilyllithium (LiCH2SiMe3) (5 mol %) and pinacolborane efficiently results in the formation of corresponding alkenyl and alkyl b

Copper-Photocatalyzed Hydroboration of Alkynes and Alkenes

The photocatalytic hydroboration of alkenes and alkynes is reported. The use of newly-designed copper photocatalysts with B2Pin2 permits the formation a boryl radical, which is used for hydroboration of a large panel of alkenes and a

Electrochemical Hydroboration of Alkynes

Herein we reported the electrochemical hydroboration of alkynes by using B2Pin2 as the boron source. This unprecedented reaction manifold was applied to a broad range of alkynes, giving the hydroboration products in good to excellent yields without the need of a metal catalyst or a hydride source. This transformation relied on the possible electrochemical oxidation of an in situ formed borate. This anodic oxidation performed in an undivided cell allowed the formation of a putative boryl radical, which reacted on the alkyne.