cas 166316-48-9, 4-(2-CARBOXYETHYL)BENZENEBORONIC ACID | Articles data ｜lookchem

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166316-48-9

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Syntheses with organoboranes. XIII. Synthesis of ω-(4-bromophenyl)alkanoic acids and their borylation
ω-(4-Bromophenyl)alkanoic acids 2c-e were obtained from 1-bromo-4-alkenylbenzenes 5c-e by hydroboration-thermal isomerization-oxidation. Their esters 11c-e were transformed in good yields into the corresponding boronates 12c-e by the cross-coupling reaction with (10) in an ionic liquid, [bmim][BF4]. The use of pinacolborane for the coupling reaction in the ionic liquid gave debromination products, and low yields of 12c-e. Ethyl 3-(4-bromophenyl)propanoate (7c) was transformed into ethyl 3-(4-[1,3,2]dioxaborolanyl)propanoate (9c) by the cross-coupling with [2,2′]bi[[1,3,2]dioxaborinanyl].
Zaidlewicz, Marek,Wolan, Andrzej
p. 129 - 135
(2007/10/03)

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Chemical Properties

Melting Point: 158-160 °C
Boiling Point: 419.179 °C at 760 mmHg
Flash Point:207.312 °C
Density: 1.286 g/cm³
Storage Temp.:under inert gas (nitrogen or Argon) at 2-8°C
Vapor Pressure: 8.92E-08mmHg at 25°C
Refractive Index: 1.56
PKA: 4.63±0.10(Predicted)
BRN: 9198524
PSA: 77.76000
LogP: -0.61640

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