IP Library › Granted Patent US 12673913
Granted Patent B2
US 12673913 · App. 18/250,238 · Granted Jul 7, 2026

Aldehyde composition

Inventors: Tatsuya Utamura (Okayama, JP); Junya Nishiuchi (Okayama, JP)
Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
C07C47/228C11B9/0061
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Quick Facts
Patent No.
US 12673913
App. No.
18/250,238
Granted
Jul 7, 2026
Kind
B2
Abstract

An aldehyde composition containing an aldehyde represented by Formula (1) and an aldehyde represented by Formula (2) is provided. A mass ratio [(1)/(2)] of the aldehyde represented by Formula (1) to the aldehyde represented by Formula (2) is from 96/4 to 99.97/0.03.

Claims (28)

1 . An aldehyde composition, comprising:

a first aldehyde of formula (1):

a second aldehyde of formula (2):

wherein a (1)/(2) mass ratio of the first aldehyde of formula (1) to the second aldehyde of formula (2) is in a range of from 96/4 to 99.97/0.03.

2 . A perfume composition, comprising:

the aldehyde composition of claim 1 .

3 . A method for producing an aldehyde, the method comprising, in this order:

subjecting a dimethylbenzaldehyde of formula (3):

and propionaldehyde to aldol condensation, to obtain an intermediate; and

hydrogenating the intermediate to obtain an aldehyde of formula (4):

4 . The method of claim 3 , wherein the hydrogenating yields an aldehyde of formula (1):

5 . The method of claim 3 , wherein the hydrogenating yields an aldehyde of formula (2):

6 . The aldehyde composition of claim 1 , further comprising:

an alcohol of formula (6)

7 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 96/4 to 99.07/0.93.

8 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 96/4 to 99.03/0.97.

9 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 96/4 to 96.75/3.25.

10 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 96.75/3.25 to 99.97/0.03.

11 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 99.03/0.97 to 99.97/0.03.

12 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 99.07/0.93 to 99.97/0.03.

13 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 97/3 to 99.9/0.1.

14 . The aldehyde composition of claim 1 , wherein the (1)/(2) mass ratio is in a range of from 98/2 to 99.5/0.5.

15 . The aldehyde composition of claim 1 , comprising the first aldehyde and the second aldehyde, in total, in at least 95 mass %.

16 . The aldehyde composition of claim 1 , comprising the first aldehyde and the second aldehyde, in total, in at least 96 mass %.

17 . The aldehyde composition of claim 1 , comprising the first aldehyde and the second aldehyde, in total, in at least 97 mass %.

18 . The aldehyde composition of claim 1 , comprising the first aldehyde in a range of from 96 to 99.97 mass %.

19 . The aldehyde composition of claim 1 , comprising the first aldehyde in a range of from 97 to 99.9 mass %.

20 . The aldehyde composition of claim 1 , comprising the first aldehyde in a range of from 98 to 99.5 mass %.