52190-28-0 2-Bromo-3′,4′-(Methylenedioxy) Propiophenone Chemical & Physical

November 17 12:26 2022

52190-28-0    2-Bromo-3′,4′-(methylenedioxy)propiophenone

Described the first asymmetric Kumada reaction of alkyl electrophiles, specifically the cross-coupling of racemic α-bromoketones with aryl Grignard reagents. Several features of this survey are of interest.

First, the coupling takes place at very low temperatures (-40 or -60 °C), which enables asymmetric synthesis of easily racemic α-aryl ketones.

Second, dialkyl ketones undergo enantioselective coupling with good ee and yield.

Third, ready-made bis(oxazolines) were demonstrated for the first time to be efficient ligands for cross-coupling of alkyl electrophiles, opening the door to new opportunities in asymmetric catalysis.

Chemical & Physical Properties

Density 1.585 g/cm3
Boiling Point 345.673ºC at 760 mmHg
Molecular Formula C10H9BrO3
Molecular Weight 257.08100
Flash Point 162.857ºC
Exact Mass 255.97400
PSA 35.53000
LogP 2.38140

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Original Source: https://www.chemicalsrc.com/news/52190-28-0-2-bromo-34-methylenedioxypropiophenone-chemical-physical/

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