IP Library › Granted Patent US 12,215,065
Granted Patent B2
US 12,215,065 · App. 18/047,305 · Granted Feb 4, 2025

Methods for producing arylamine compound and electrophotographic photosensitive member

Inventors: Naohiro Takahashi (Chiba, JP); Koichi Nakata (Tokyo, JP); Takuya Kosukegawa (Chiba, JP)
Assignee: Canon Kabushiki Kaisha
C07C209/78G03F7/031
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Quick Facts
Patent No.
US 12,215,065
App. No.
18/047,305
Granted
Feb 4, 2025
Kind
B2
Abstract

A method for producing an arylamine compound, wherein a chemical compound represented by formula (B) is reacted by addition reaction with a carbon atom having a bound hydrogen atom on a benzene ring of a chemical compound represented by formula (A), in the presence of one or more acids selected from Lewis acids or sulfonic acids; to produce a chemical compound represented by formula (C) including a partial structure represented by formula (D).

Claims (34)

1. A method for producing an arylamine compound represented by formula (C), the method comprising an addition reaction, as a Friedel-Crafts reaction, of adding a chemical compound represented by formula (B) to a carbon atom bonded to a hydrogen atom on a benzene ring of a chemical compound represented by formula (A), in the presence of one or more acids selected from the group consisting of Lewis acids and sulfonic acids, to produce the arylamine compound:

wherein:

in the formula (A), R a1 , R a2 , R a3 , R a4 , and R a5 each independently represent a hydrogen atom or an alkyl group, at least one of R a1 , R a2 , R a3 , R a4 , and R a5 is the hydrogen atom, and R aA and R aB each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, an acyl group, or an oxycarbonyl group;

in the formula (B), R b1 , R b2 and R b3 each independently represent a hydrogen atom or a methyl group, R b4 represents a hydrogen atom, a hydroxy group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted amino group, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, or an unsubstituted or substituted aryloxy group, and * represents a carbon atom position bonding with the formula (A); and

in the formula (C), R c1 , R c2 , R c3 , R c4 , and R c5 each independently represent a hydrogen atom, an alkyl group, or a monovalent group represented by formula (D), such that at least one of R c1 , R c2 , R c3 , R c4 , and R c5 is the monovalent group represented by the formula (D), and R cA and R cB each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, an acyl group, or an oxycarbonyl group; and:

wherein, in the formula (D), R d1 , R d2 , and R d3 each independently represent a hydrogen atom or a methyl group, R d4 represents a hydrogen atom, a hydroxy group, an unsubstituted or substituted alkoxy group, an unsubstituted or substituted amino group, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, or an unsubstituted or substituted aryloxy group, and * represents a bonding position.

2. The method for producing the arylamine compound according to claim 1 , wherein:

the chemical compound represented by the formula (A) is a chemical compound represented by formula (E); and

the chemical compound represented by the formula (C) is a chemical compound represented by formula (F):

wherein:

in the formula (E), R e1 , R e2 , R e3 , R e4 , R e5 , R e6 , R e7 , R e8 , R e9 , and R e10 each independently represent a hydrogen atom or an alkyl group, at least one of R e1 , R e2 , R e3 , R e4 , R e5 , R e6 , R e7 , R e8 , R e9 , and R e10 represents the hydrogen atom, R eA represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, an acyl group, or an oxycarbonyl group; and

in the formula (F), R f1 , R f2 , R f3 , R f4 , R f5 , R f6 , R f7 , R f8 , R f9 , and R f10 each independently represent a hydrogen atom, an alkyl group, or a monovalent group represented by the formula (D), and R fA represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, an acyl group, or an oxycarbonyl group.

3. The method for producing the arylamine compound according to claim 2 , wherein:

the chemical compound represented by the formula (E) is a chemical compound represented by formula (G); and

the chemical compound represented by the formula (F) is a chemical compound represented by formula (H):

wherein:

in the formula (G), R g1 , R g2 , R g3 , R g4 , R g5 , R g6 , R g7 , R g8 , R g9 , R g10 , R g11 , R g12 , R g13 , R g14 , and R g15 each independently represent a hydrogen atom or an alkyl group, and at least one of R g1 , R g2 , R g3 , R g4 , R g5 , R g6 , R g7 , R g8 , R g9 , R g10 , R g11 , R g12 , R g13 , R g14 , and R g15 represents the hydrogen atom; and

in the formula (H), R h1 , R h2 , R h3 , R h4 , R h5 , Rho, R h7 , R h8 , R h9 , R h10 , R h11 , R h12 , R h13 , R h14 , and R h15 each independently represent a hydrogen atom, an alkyl group, or a monovalent group represented by the formula (D).

4. The method for producing the arylamine compound according to claim 1 , wherein the same equivalent of alcohol as that of the Lewis acid is added.

5. The method for producing the arylamine compound according to claim 4 , wherein as the alcohol, a monohydric alcohol having 4 or less carbon atoms or a dihydric alcohol having 4 or less carbon atoms is added.

6. The method for producing the arylamine compound according to claim 1 , wherein as the Lewis acids, one or more Lewis acids are used that are selected from the group consisting of aluminum chloride, aluminum bromide and boron trifluoride.

7. The method for producing the arylamine compound according to claim 1 , wherein as the Lewis acids, two or more different Lewis acids are simultaneously used.

8. The method for producing the arylamine compound according to claim 7 , wherein as the Lewis acids, aluminum chloride and boron trifluoride are simultaneously used.

9. The method for producing the arylamine compound according to claim 1 , wherein as the sulfonic acids, one or more sulfonic acids are used that are selected from the group consisting of methanesulfonic acid, trifluoromethanesulfonic acid, and camphorsulfonic acid.

10. The method for producing the arylamine compound according to claim 1 , wherein the Lewis acids and the sulfonic acids are simultaneously used.

11. The method for producing the arylamine compound according to claim 10 , wherein as the Lewis acids, aluminum chloride and boron trifluoride are simultaneously used, and as the sulfonic acids, one or more sulfonic acids are simultaneously used that are selected from the group consisting of methanesulfonic acid and camphorsulfonic acid.

12. The method for producing the arylamine compound according to claim 1 , wherein:

the chemical compound represented by the formula (A) is a chemical compound represented by formula (U);

the chemical compound represented by the formula (B) is a chemical compound represented by formula (V);

the chemical compound represented by the formula (C) is a chemical compound represented by formula (W); and

the monovalent group represented by the formula (D) is a monovalent group represented by formula (X):

13. The method for producing the arylamine compound according to claim 1 , wherein R a1 in the formula (A) is a hydrogen atom, and the chemical compound represented by the formula (B) is added selectively to the carbon atom bonded to the hydrogen atom to introduce the monovalent group represented by the formula (D) and thereby produce the chemical compound represented by the formula (C).

14. The method for producing the arylamine compound according to claim 2 , wherein at least one of R e1 and R e6 in the formula (E) is a hydrogen atom, and the chemical compound represented by the formula (B) is added selectively to the carbon atom bonded to the hydrogen atom to introduce the monovalent group represented by the formula (D) and thereby produce the chemical compound represented by the formula (F).

15. The method for producing the arylamine compound according to claim 3 , wherein at least one of the R g1 , the R g6 , and the R g11 in the formula (G) is a hydrogen atom, and the chemical compound represented by the formula (B) is added selectively to the carbon atom bonded to the hydrogen atom to introduce the monovalent group represented by the formula (D) and thereby produce the chemical compound represented by the formula (H).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2022
From: TAKAHASHI, NAOHIRO; NAKATA, KOICHI; KOSUKEGAWA, TAKUYA
To: CANON KABUSHIKI KAISHA
Reel/Frame 061622/0036 →
Priority Claims (1)
JP 2021-177592 · Oct 29, 2021 · national
Continuity (1)
Related Publication 20230136697A1 · May 4, 2023
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