1009033-87-7

Basic information

• Product Name: 4-(4-Pyridinyl)phenylboronic acid pinacol ester
• Synonyms: 4-(4-Pyridinyl)phenylboronic acid pinacol ester;4-(4-(4,4,5,5-TetraMethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine;Pyridine,4-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-;Pinacol 4-(pyridin-4-yl)phenylboronate;(4-(PYRIDIN-4-YL)PHENYL)BORONIC ACID PINACOL ESTER;Pinacol 4-(pyridin
• CAS NO: 1009033-87-7
• Molecular Formula: C₁₇H₂₀BNO₂
• Molecular Weight: 299.17248
• Mol File: 1009033-87-7.mol
• Article Data: 5

Chemical Properties

• Melting Point: 265℃
• Boiling Point: 401℃
• Flash Point: 197℃
• Appearance: /
• Density: 1.09
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• PKA: 5.32±0.10(Predicted)
• CAS DataBase Reference: 4-(4-Pyridinyl)phenylboronic acid pinacol ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-(4-Pyridinyl)phenylboronic acid pinacol ester(1009033-87-7)
• EPA Substance Registry System: 4-(4-Pyridinyl)phenylboronic acid pinacol ester(1009033-87-7)

Safety Data

• Hazardous Substances Data: 1009033-87-7(Hazardous Substances Data)

Usage

General Description

4-(4-Pyridinyl)phenylboronic acid pinacol ester is a chemical compound that belongs to the class of boronic acid esters. It is commonly used in organic synthesis as a reagent for the preparation of various pharmaceuticals, agrochemicals, and materials. The compound has a boronic acid group, which makes it a valuable building block for Suzuki-Miyaura cross-coupling reactions. This reaction is widely used in the construction of carbon-carbon bonds, which are essential in the synthesis of complex organic molecules. Additionally, 4-(4-Pyridinyl)phenylboronic acid pinacol ester has been studied for its potential applications in medicinal chemistry, particularly in the development of new drugs for various therapeutic areas. Overall, this compound plays a crucial role in the advancement of organic chemistry and drug discovery.

Upstream product

• 39795-60-3 4-(4-bromophenyl)pyridine 
• 73183-34-3 bis(pinacol)diborane 
• 106-37-6 1.4-dibromobenzene 
• 15854-87-2 4-iodopyridine 
• 99770-93-1 benzene-1,4-diboronic acid bispinacol ester 
• 589-87-7 1,4-bromoiodobenzene 

Downstream Products

• 1009033-98-0 3,5,3',5'-tetra(p-pyridin-4-yl)phenyl-[1,1']biphenyl 
• 2424054-03-3 1,1,2,2-tetrakis(4'-(pyridin-4-yl)-[1,1'-biphenyl]-4-yl)ethene 

Relevant articles and documents

Evolution from Tunneling to Hopping Mediated Triplet Energy Transfer from Quantum Dots to Molecules

Efficient energy transfer is particularly important for multiexcitonic processes like singlet fission and photon upconversion. Observation of the transition from short-range tunneling to long-range hopping during triplet exciton transfer from CdSe nanocrystals to anthracene is reported here. This is firmly supported by steady-state photon upconversion measurements, a direct proxy for the efficiency of triplet energy transfer (TET), as well as transient absorption measurements. When phenylene bridges are initially inserted between a CdSe nanocrystal donor and anthracene acceptor, the rate of TET decreases exponentially, commensurate with a decrease in the photon upconversion quantum efficiency from 11.6% to 4.51% to 0.284%, as expected from a tunneling mechanism. However, as the rigid bridge is increased in length to 4 and 5 phenylene units, photon upconversion quantum efficiencies increase again to 0.468% and 0.413%, 1.5-1.6 fold higher than that with 3 phenylene units (using the convention where the maximum upconversion quantum efficiency is 100%). This suggests a transition from exciton tunneling to hopping, resulting in relatively efficient and distance-independent TET beyond the traditional 1 nm Dexter distance. Transient absorption spectroscopy is used to confirm triplet energy transfer from CdSe to transmitter, and the formation of a bridge triplet state as an intermediate for the hopping mechanism. This first observation of the tunneling-to-hopping transition for long-range triplet energy transfer between nanocrystal light absorbers and molecular acceptors suggests that these hybrid materials should further be explored in the context of artificial photosynthesis.

OLEFIN SUBSTITUTED OXINDOLES HAVING AMPK ACTIVITY

The present invention relates to compounds of formula (I), which have valuable pharmacological properties, in particular are activators of AMPK and which are therefore useful in the treatment of certain disorders that can be prevented or treated by activation of this receptor. The compounds are suitable for treatment and prevention of diseases which can be influenced by this receptor, such as metabolic diseases, in particular diabetes type 2.

Novel four-pyridylbenzene-armed biphenyls as electron-transport materials for phosphorescent OLEDs

A series of four-pyridylbenzene-armed biphenyl derivatives were designed and synthesized as an electron-transport and exciton- and hole-block layer for the fac-tris(2-phenylpyridine)iridium (lr(PPy)3)-based green phosphorescent organic light-em