IP Library Granted Patent US 8,633,316
Granted Patent B2
US 8,633,316 · App. 13/009,989 · Granted Jan 21, 2014

Producing method of nitrogen containing condensed heterocyclic compound

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,633,316
App. No.
13/009,989
Granted
Jan 21, 2014
Kind
B2
Abstract

Provided is a method for producing a nitrogen-containing condensed heterocyclic compound containing the step of: reacting a compound represented by Formula (1a) or Formula (1b) with a compound represented by Formula (2) under existence of cupper or a cupper ion, and a ligand to produce a nitrogen-containing condensed heterocyclic compound represented by Formula (3a) or Formula (3b):

Claims (11)

1. A method for producing a nitrogen-containing condensed heterocyclic compound comprising the step of:

reacting a compound represented by Formula (4a) with a compound represented by Formula (2) in the presence of Cu 2 O or CuO, and a ligand selected from the group consisting of picolinic acid, a 5-butylpicolinic acid and dipivaloylmethane to produce a nitrogen-containing condensed heterocyclic compound represented by Formula (5a):

wherein “A” represents an aromatic hydrocarbon ring or an aromatic heterocycle; Z 1 represents a non-metallic atomic group necessary to from an aromatic heterocycle; Z 2 represents a non-metallic atomic group necessary to form an aromatic hydrocarbon ring or an aromatic heterocycle; and “n” represents an integer of 1 to 4.

2. The method for producing a nitrogen-containing condensed heterocyclic compound of claim 1 ,

wherein the reaction is carried out in the presence of a base.

3. The method for producing a nitrogen-containing condensed heterocyclic compound of claim 1 ,

wherein “A” represents one selected from the group consisting of a benzene ring, a dibenzofuran ring, a dibenzothiophen ring, and a carbazole ring.

4. The method for producing a nitrogen-containing condensed heterocyclic compound of claim 1 ,

wherein “A” represents one selected from the group consisting of a dibenzofuran ring, a dibenzothiophene ring, and a carbazole ring.

5. The method for producing a nitrogen-containing condensed heterocyclic compound of claim 1 ,

wherein the ligand is at least one of 5-butylpicolinic acid and dipivaloylmethane.

Assignments (4)
NUNC PRO TUNC ASSIGNMENT Recorded Oct 7, 2021
From: KONICA MINOLTA INC
To: MERCK PERFORMANCE MATERIALS GERMANY GMBH
Reel/Frame 057748/0075 →
NUNC PRO TUNC ASSIGNMENT Recorded Oct 7, 2021
From: MERCK PERFORMANCE MATERIALS GERMANY GMBH
To: MERCK PATENT GMBH
Reel/Frame 057748/0146 →
CHANGE OF NAME Recorded Mar 23, 2020
From: KONICA MINOLTA HOLDINGS, INC.
To: KONICA MINOLTA, INC.
Reel/Frame 052207/0010 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2011
From: SUGITA, SHUICHI; KATOH, EISAKU; FUJISAWA, RIE
To: KONICA MINOLTA HOLDINGS, INC.
Reel/Frame 025666/0973 →