TETRACYCLIC COMPOUND HAVING DIHYDROBENZOFURAN RING OR DIHYDROBENZOPYRAN RING, AND FRAGRANCE MATERIAL COMPOSITION CONTAINING SAME

WIPO Patent Application WO/2022/045033

A1

The present invention relates to a dihydrobenzofuran compound or dihydrobenzopyran compound represented by formula (1) (wherein each of R1, R2 and R3 independently represents a hydrogen atom, an alkoxy group having from 1 to 5 carbon atoms, or an alkyl group; each of R4a and R4c represents a hydrogen atom, and one of R4b and R4d represents a hydrogen atom, while the other represents an alkyl group having from 1 to 5 carbon atoms or an alkenyl group having from 2 to 5 carbon atoms; or alternatively, R4a and R4b combine together to form an alkylidene group having from 1 to 5 carbon atoms, and each of R4c and R4d represents a hydrogen atom; or alternatively, each of R4a and R4b represents a hydrogen atom, and R4c and R4d combine together to form an alkylidene group having from 1 to 5 carbon atoms; each of R5 and R6 independently represents a hydrogen atom or a methyl group; n represents 0 or 1; and in cases where n is 0, ring A represents a five-membered ring, while in cases where n is 1, ring A represents a six-membered ring).

HAKAMATA TOMOHIKO (JP)
DASSONNEVILLE BENJAMIN (JP)
YAMAMOTO KENICHI (JP)
KAWARAYA AKIHIRO (JP)

PCT/JP2021/030705

March 03, 2022

August 23, 2021

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TAKASAGO PERFUMERY CO LTD (JP)

C07D307/00; A23L2/00; A23L2/52; A23L5/00; A23L27/00; A23L27/20; A61K8/49; A61K47/22; A61L9/01; A61Q5/02; A61Q11/00; A61Q13/00; A61Q19/10; C11B9/00; C11D3/50

US20170029741A1	2017-02-02
US4438023A	1984-03-20
US4709061A	1987-11-24

KOBAYASHI Hiroshi et al. (JP)

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