# US 2021/0277326 A1 · Isobutyric ester compound having acetoxy group at alpha-position, fragrance composition, and use thereof as fragrance

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- Number: US 2021/0277326 A1
- Document ID: US20210277326A1
- Status: Published application
- Kind: A1
- Application number: 17/255,151
- Filed: 2019-06-26
- Published: 2021-09-09
- Earliest claimed: 2018-06-26
- Assignees: Mitsubishi Gas Chemical Company, Inc.
- Applicants: Mitsubishi Gas Chemical Company, Inc.
- Inventors: Atsushi OKAMOTO; Eriko KUSHIDA; Umi YOKOBORI; Kyoko KIMURA
- Web page: https://patentgrep.com/patent/US20210277326A1

## CPC

- C11B 9/0019: {carbocylic acids; Salts or esters thereof}
- C07C 69/67: of saturated acids
- C11B 9/003: {the ring containing less than six carbon atoms}
- C11B 9/0034: {the ring containing six carbon atoms}
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient: wherein, in Formula (1), R1 represents a linear, branched, or cyclic alkyl group having 1 to 6 carbon atoms.

## Claims

### Claim 1

A fragrance composition comprising a compound represented by Formula (1) as an active ingredient:
wherein, in Formula (1), R1 represents a straight, branched, or cyclic alkyl group having from 1 to 6 carbon atoms.

### Claim 2 (depends on 1)

The fragrance composition according to claim 1, wherein, in Formula (1), R1 is selected from the group consisting of a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, an isobutyl group, a sec-butyl group, a 3-methylbutan-2-yl group, a neopentyl group, a 2-methylbutyl group, a 3-methylbutyl group, a cyclopentyl group, and a n-hexyl group.

### Claim at position 3

3-6. (canceled)

### Claim 7

A compound, represented by Formula (2):
wherein, in Formula (2), R2 represents a straight, branched, or cyclic alkyl group having 4 to 6 carbon atoms, provided that one where R2 is a t-butyl group and a cyclohexyl group is excluded.

### Claim 8 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is selected from the group consisting of a n-butyl group, an isobutyl group, a sec-butyl group, a 3-methylbutan-2-yl group, a neopentyl group, a 2-methylbutyl group, a 3-methylbutyl group, a cyclopentyl group, and a n-hexyl group.

### Claim 9 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a n-butyl group.

### Claim 10 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is an isobutyl group.

### Claim 11 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a 2-methylbutyl group.

### Claim 12 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a 3-methylbutyl group.

### Claim 13 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a cyclopentyl group.

### Claim 14 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a n-hexyl group.

### Claim 15 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a sec-butyl group.

### Claim 16 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a 3-methylbutan-2-yl group.

### Claim 17 (depends on 7)

The compound according to claim 7, wherein, in Formula (2), R2 is a neopentyl group.