# US 11,441,098 B2 · α-hydroxyisobutyrate ester compound, fragrance composition, and use thereof as fragrance

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- Number: US 11,441,098 B2
- Document ID: US11441098B2
- Status: Granted
- Kind: B2
- Application number: 17/255,093
- Filed: 2019-06-26
- Published: 2021-09-02
- Granted: 2022-09-13
- 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/US11441098B2

## CPC

- C11B 9/0019: {carbocylic acids; Salts or esters thereof}
- C07C 69/675: of saturated hydroxy-carboxylic acids
- C11B 9/00: Essential oils; Perfumes
- 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): wherein, in Formula (1), R represents a linear, branched, or cyclic alkyl group having 2 to 6 carbon atoms.

## Claims

### Claim 1

A fragrance composition, comprising a compound represented by the following formula (1) as an active ingredient:
wherein R is selected from the group consisting of a sec-butyl group, a 2-methylbutyl group, a 3-methylbutyl group, a neopentyl group, a 2-methylpentyl group, 4-methylpentan-2-yl group, a n-hexyl group, a cyclopentyl group, and a cyclohexyl group.

### Claim 2

A compound, represented by the following formula (2):

### Claim 3 (depends on 1)

The fragrance composition of claim 1, comprising from 0.001 to 90 mass % of the compound represented by the formula (1).