Substituted 5-formyl-1,3-dioxepans

Details Substituted 5-formyl-1,3-dioxepans Substituted 5-formyl-1,3-dioxepans

1986-10-30

1988-08-02

Milestone, Norma S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549333, 512 9, 512 12, C07D32106

Patent

active

047614897

ABSTRACT:
Substituted 5-formyl-1,3-dioxepans of the general formula I ##STR1## where R.sup.1 is a straight-chain or branched alkyl radical of 1 to 10 carbon atoms which may furthermore contain oxygen in the form of an ether group, or a 5-membered to 8-membered ring which is unsubstituted or substituted by alkyl groups and/or an alkylene group, has up to 10 carbon atoms and may furthermore contain oxygen in the form of an ether group, R.sup.2 is hydrogen, or R.sup.1 and R.sup.2 together form an alkylene radical of 4 to 10 carbon atoms which is unsubstituted or substituted by alkyl or alkoxy and may furthermore contain oxygen in the form of an ether group, and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each hydrogen or methyl, and the total number of carbon atoms is not more than 25, their preparation and their use as scents. Particularly interesting compounds are 2-tert-butyl-5-formyl-1,3-dioxepan, 2-isopropyl-5-formyl-1,3-dioxepan, 2-pentyl-4,7-dimethyl-5-formyl-1,3-dioxepan, 2-(2,4,4-trimethylpentyl)-5-formyl-1,3-dioxepan, 9-formyl-7,12-dioxaspiro[5,6]dodecane and 2,4,4,7,7-pentamethyl-5-formyl-1,3-dioxepan.

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