process for the preparation of aliphatic cyclo - unsaturated ketones containing preparations, the formed preparations.and method for preparation of unsaturated cycloaliphatic ketones with organohalogen leptische properties.

摘要

1305621 Flavourings for food and tobacco R FIRMENICH G FIRMENICH R E FIRMENICH and F H FIRMENICH [trading as FIRMENICH & CIE] 7 May 1970 [7 May 1969 8 Aug 1969 14 April 1970 17 April 1970] 22215/70 Headings A2B and A2C [Also in Divisions A5 C2 and C6] Compounds of the formula: wherein the side-chain attached at portion 1 of the ring contains one double bond bond in the position 2' or 3'; the ring contains one endocyclic double bond in position 1 or position 2, or one exocyclic double bond or two conjugated double bonds in positions 1 and 3, n=0 or 1, RSP1/SP, RSP2/SP and RSP3/SP all represent hydrogen, or one of them C 1-6 alkyl and the others hydrogen and RSP4/SP, RSP5/SP, RSP6/SP and RSP7/SP all represent hydrogen or one of them an alkyl group having 1 to 6 carbon atoms and all the others hydrogen, provided that RSP1/SP to RSP7/SP may all simultaneously represent hydrogen when the ring contains one exocyclic double bond in position 2 or when n is 1 and similarly R substituted compounds of the formulae: where X represent oxygen or hydrogen and a hydroxyl group are employed as flavourings for foodstuffs, tea and tobacco products.