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Episode 502

SEGPHOS
Tue, 2018-Sep-18 00:36 UTC
Length - 2:02

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Welcome to random Wiki of the Day where we read the summary of a random Wikipedia page every day.

The random article for Tuesday, 18 September 2018 is SEGPHOS.

SEGPHOS is a chiral ligand developed by Takasago that is used in asymmetric synthesis. It was developed after BINAP and was investigated since it has a narrower dihedral angle between the aromatic faces. This was predicted and then confirmed to increase the enantioselectivity and activity of metal complexes of SEGPHOS. After its commercialization, SEGPHOS and its substituted derivatives have been found to constitute a privileged ligand class for a variety of transition metal catalysts and chemical transformations beyond its original application in ruthenium-catalyzed enantioselective hydrogenation.

In addition to the parent ligand bearing phenyl groups on the phosphorus atoms, the bulkier derivatives DM-SEGPHOS and DTBM-SEGPHOS are also commercially available. In DM-SEGPHOS and DTBM-SEGPHOS, the phenyl groups of SEGPHOS are replaced by 3,5-dimethylphenyl and 3,5-di-tert-butyl-4-methoxyphenyl groups, respectively.

This recording reflects the Wikipedia text as of 00:36 UTC on Tuesday, 18 September 2018.

For the full current version of the article, go to http://en.wikipedia.org/wiki/SEGPHOS.

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