IP Library Granted Patent US 11,396,492
Granted Patent B2
US 11,396,492 · App. 16/767,831 · Granted Jul 26, 2022

Direct oxidative amination of hydrocarbons

Inventors: Roy A. Periana (Jupiter, FL); Brian G. Hashiguchi (Naperville, IL); Sae Hume Park (Jupiter, FL); Niles Jensen Gunsalus (Palm City, FL)
Assignees: University of Florida Research Foundation, Incorporated; Hyconix, Inc.
C07C303/40C07B43/00C07B43/04C07B43/06C07C209/62
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Quick Facts
Patent No.
US 11,396,492
App. No.
16/767,831
Granted
Jul 26, 2022
Kind
B2
Abstract

Provided is a process for converting a hydrocarbon comprising at least one C—H bond to a nitrogen-functionalized product. The process comprises contacting a hydrocarbon and (i) an oxidizing electrophile comprising (a) a main group element or transition metal in oxidized form and (b) at least one nitrogen-containing ligand, or (ii) an oxidant and a reduced form of an oxidizing electrophile comprising (a) a main group element or transition metal and (b) at least one nitrogen-containing ligand, in a solvent to provide the nitrogen-functionalized product and an electrophile reduction product. Further provided is an oxidizing composition comprising the oxidizing electrophile with at least one nitrogen-containing ligand and a non-oxidizable liquid.

Claims (37)

1. A process for converting a hydrocarbon comprising at least one C—H bond to a nitrogen-functionalized product, comprising

contacting the hydrocarbon and

(i) an oxidizing electrophile comprising

(a) a main group element selected from the group consisting of arsenic, selenium, indium, tin, antimony, tellurium, thallium, lead, and bismuth in oxidized form and

(b) at least one nitrogen-containing ligand of the formula —NH n Y 2-n , wherein Y is deactivated aryl, —F, —COR, —C(O)OR, —C(O)NRR′, —NO 2 , —NO, —CH 2 SO 2 , —SO 2 R, —SO 2 F, —SO 2 OH, —SO 2 NH 2 , or P(O)RR′, wherein R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic,

wherein the deactivated aryl comprises at least one electron withdrawing substituent selected from —NO 2 , fluoro-C 1-8 alkyl, —F, —OOCR″, —COOH, —OH 2 + , —CONH 2 , —COOR″, —NR″ 3 + , —CN, —SO 3 H, —SO 3 R″, —SO 3 W, and a combination thereof, wherein R″ is hydrogen or an aliphatic, heteroaliphatic, aromatic, or heteroaromatic moiety, each of which is optionally substituted, W is a cation comprising a metal selected from boron, bismuth, antimony, arsenic, lanthanum, cerium, scandium, yttrium, titanium, zirconium, hafnium, silver, zinc, cadmium, aluminum, gallium, indium, germanium, tin, phosphorus, an alkali metal, and an alkaline earth metal, and

n is 0 or 1, or

(ii) an oxidant and a reduced form of an oxidizing electrophile comprising (a) a main group element selected from the group consisting of arsenic, selenium, indium, tin, antimony, tellurium, thallium, lead, and bismuth and (b) at least one nitrogen-containing ligand of the formula —NH n Y 2-n , wherein Y is deactivated aryl, —F, —COR, —C(O)OR, —C(O)NRR′, —NO 2 , —NO, —CH 2 SO 2 , —SO 2 R, —SO 2 F, —SO 2 OH, —SO 2 NH 2 , or —P(O)RR′, wherein R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic,

wherein the deactivated aryl comprises at least one electron withdrawing substituent selected from —NO 2 , fluoro-C 1-8 alkyl, —F, —OOCR″, —COOH, —OH 2 + , —CONH 2 , —COOR″, —NR″ 3 + , —CN, —SO 3 H, —SO 3 R″, —SO 3 W, and a combination thereof, wherein R″ is hydrogen or an aliphatic, heteroaliphatic, aromatic, or heteroaromatic moiety, each of which is optionally substituted, and W is a cation comprising a metal selected from boron, bismuth, antimony, arsenic, lanthanum, cerium, scandium, yttrium, titanium, zirconium, hafnium, silver, zinc, cadmium, aluminum, gallium, indium, germanium, tin, phosphorus, an alkali metal, and an alkaline earth metal, and

n is 0 or 1,

in a solvent to provide the nitrogen-functionalized product and an electrophile reduction product; and

optionally separating the nitrogen-functionalized product and the electrophile reduction product,

wherein

the hydrocarbon is selected from alkane, alkene, alkyne, cycloalkane, cycloalkene, heterocycloalkane, heterocycloalkene, arene, and heteroarene, each of which is optionally substituted,

the hydrogen in the at least one C—H bond has been replaced with —NH n Y 2-n from the at least one nitrogen-containing ligand, and

the process does not contain an added halide ion.

2. The process of claim 1 , comprising separating the nitrogen-functionalized product and the electrophile reduction product.

3. The process of claim 1 , further comprising contacting the nitrogen-functionalized product with a compound of the formula H—Nu, which is a neutral or charged species, to form an NH 2 -containing compound, wherein Nu is a nucleophilic group that enables the formation of the NH 2 -containing compound.

4. The process of claim 3 , wherein Nu comprises oxide, hydroxide, alkoxide, aryloxide, carboxylate, thiolate, bisulfide, optionally protected amide, or optionally protected azanide.

5. The process of claim 3 , wherein Nu is —O, —OR 1 , —CO 2 R 1 , —S, —SR 1 , —NR 1 , —NHR 1 , or —NR 1 R 2 , in which R 1 and R 2 are the same or different and each is hydrogen, aliphatic, heteroaliphatic, aromatic, or heteroaromatic.

6. The process of claim 3 , wherein the NH 2 -containing compound comprises a monoamine, a diamine, or both a monoamine, and a diamine.

7. The process of claim 1 , further comprising contacting the electrophile reduction product and an oxidizing regeneration reagent to regenerate the oxidizing electrophile.

8. The process of claim 1 , wherein the hydrocarbon is selected from alkane, cycloalkane, and arene, each of which is optionally substituted.

9. The process of claim 1 , wherein the oxidizing electrophile comprises the element thallium, lead, antimony, selenium, tellurium, or bismuth.

10. The process of claim 1 , wherein Y is deactivated aryl, —F, —NO 2 , —NO, —CH 2 SO 2 , —SO 2 F, —SO 2 OH, —SO 2 NH 2 , or —P(O)RR′, wherein R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic, wherein the deactivated aryl comprises at least one electron withdrawing substituent selected from —NO 2 , fluoro-C 1-8 alkyl, —F, —OOCR″, —COOH, —OH 2 + , —CONH 2 , —COOR″, —NR″ 3 + , —CN, —SO 3 H, —SO 3 R″, —SO 3 W, and a combination thereof, wherein R″ is hydrogen or an aliphatic, heteroaliphatic, aromatic, or heteroaromatic moiety, each of which is optionally substituted, and W is a cation comprising a metal selected from boron, bismuth, antimony, arsenic, lanthanum, cerium, scandium, yttrium, titanium, zirconium, hafnium, silver, zinc, cadmium, aluminum, gallium, indium, germanium, tin, phosphorus, an alkali metal, and an alkaline earth metal.

11. The process of claim 1 , wherein Y is —COR, —C(O)OR, —C(O)NRR′, or —SO 2 R, wherein R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic.

12. The process of claim 1 , wherein the oxidizing electrophile is of the formula M m (NH n Y 2-n ) p L q , wherein

M is a cation of the main group element,

Y is deactivated aryl, —F, —COR, —C(O)OR, —C(O)NRR′, —NO 2 , —NO, —CH 2 SO 2 , —SO 2 R, —SO 2 F, —SO 2 OH, —SO 2 NH 2 , or —P(O)RR′, wherein R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic,

wherein the deactivated aryl comprises at least one electron withdrawing substituent selected from —NO 2 , fluoro-C 1-8 alkyl, —F, —OOCR″, —COOH, —OH 2 + , —CONH 2 , —COOR″, —NR″ 3 + , —CN, —SO 3 H, —SO 3 R″, —SO 3 W, and a combination thereof, wherein R″ is hydrogen or an aliphatic, heteroaliphatic, aromatic, or heteroaromatic moiety, each of which is optionally substituted, and W is a cation comprising a metal selected from boron, bismuth, antimony, arsenic, lanthanum, cerium, scandium, yttrium, titanium, zirconium, hafnium, silver, zinc, cadmium, aluminum, gallium, indium, germanium, tin, phosphorus, an alkali metal, and an alkaline earth metal,

L is a ligand,

m is the formal oxidation state of M,

n is 0 or 1,

p is 1 to m, and

q is 0 to 5.

13. The process of claim 12 , wherein m is 1-8.

14. The process of claim 1 , wherein the solvent is a non-oxidizable liquid selected from a fluorinated hydrocarbon, a sulfone, a deactivated arene, a deactivated aliphatic, a deactivated heteroarene, a deactivated heteroaliphatic, a compound of the formula HNY 2 or H 2 NY, and any combination thereof, wherein Y is aryl, —F, —COR, —C(O)OR, —C(O)NRR′, —NO 2 , —NO, —CH 2 SO 2 , —SO 2 R, —SO 2 F, —SO 2 OH, —SO 2 NH 2 , or —P(O)RR′, and R and R′ are the same or different and each is aliphatic, heteroaliphatic, aromatic, or heteroaromatic.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2022
From: UNIVERSITY OF FLORIDA BOARD OF TRUSTEES
To: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
Reel/Frame 059908/0431 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2022
From: THE SCRIPPS RESEARCH INSTITUTE
To: UNIVERSITY OF FLORIDA BOARD OF TRUSTEES
Reel/Frame 059908/0495 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2020
From: HASHIGUCHI, BRIAN G.
To: THE SCRIPPS RESEARCH INSTITUTE; HYCONIX, INC.
Reel/Frame 052965/0793 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2020
From: PERIANA, ROY A.; PARK, SAE HUME; GUNSALUS, NILES JENSEN
To: THE SCRIPPS RESEARCH INSTITUTE
Reel/Frame 052965/0860 →
Continuity (2)
Provisional Application 62593320 · Dec 1, 2017
Related Publication 20200377448A1 · Dec 3, 2020