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US 11,993,592 B2Granted
Phebox ligands and methods of making same
AssigneeRutgers, The State University of New Jersey
InventorsAlan S. Goldman, Thomas R. Dugan
Life of this patent
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Abstract
The present disclosure provides compounds which are useful for a number of catalytic transformations of organic molecules, non-limiting examples including dehydrogenation of alkanes. The present disclosure further relates to methods of preparing the compounds of the present disclosure.
Claims12
A method of making the compound of formula (I), or a salt or solvate thereof:
- wherein:
- R1 and R2 are each CH3, or R1 and R2 taken together are —(CH2)4— or —(CH2)5—;
- R3 is selected from the group consisting of CF3, CF2CF3, CN, and NO2;
- R4 is selected from the group consisting of CF3, CF2CF3, CN, and NO2;
- with the provisos that:
- if one of R3 and R4 is CN, then the other is CF2CF3 or NO2;
- if one of R3 and R4 is NO2, then the other is CF3, CF2CF3, or CN;
- R5 is selected from the group consisting of H, CF3, CF2CF3, CN, and NO2;
- and
- E is CH,
- the method comprising:
- converting
- into
- and
- contacting
- with
- to provide the compound of formula (I),
- wherein in the compound of formula (V):
- R3 is selected from the group consisting of CF3, CF2CF3, CN, and NO2;
- R4 is selected from the group consisting of CF3, CF2CF3, CN, and NO2;
- and
- with the provisos that
- if one of R3 and R4 is CN, then the other is CF2CF3 or NO2;
- if one of R3 and R4 is NO2, then the other is CF3, CF2CF3, or CN.
21 more elements
Dependencies are inferred from the claim text.