Abstract: Described is a 2-mercapto-2-methyl-pentan-1-ol compound, which is especially useful as fragrance or flavor compound. For the production of 2-mercapto-2-methyl-pentan-1-ol, 2,3-epithio-2-methyl-pentan-1-ol can be reduced. The described compound can provide foodstuffs an interesting, gustatory and fragrant note.

Abstract: Described are compounds of the general formula A where R2=CH3, C2H5, C3H7 (n, iso) or C4H9 (n, iso, tert) and R2=CH3, C2H5, C3H7 (n, iso) or C4H9 (n, iso, tert) which are especially useful as fragrance or flavor materials. The 3-mercapto-2-alkyl-alkanals of the general formula A in which X—CHO are formed by reaction of the corresponding 2-alkyl-2-alkenals with hydrogen sulfide.

Abstract: There is described 3-mercapto-2-alkyl-alkane-1-ols of the general formula A, wherein R1=CH3, C2H5, C3H7 (n, iso) or C4H9 (n, iso, tert.) and R2=CH3, C2H5, C3H7 (n, iso) or C4H9 (n, iso, tert.), which can be employed as fragrance or organoleptic substances. For production of these compounds, either the corresponding 3-acetylthio-2-alkyl-alkanal or the 3-mercapto-2-alkyl-alkanal can be converted with a reducing agent. Described is also a process for organoleptically enhacing a foodstuff with an alkanol of the general Formula A, wherein an ester of the alkanol is added to the foodstuff and the ester fortified foodstuff is subjected to a process, in which the ester is at least partially converted to the alkanol.

Abstract: There is described the utilization of thiocarbonic acid or carbothioic acid of the general formula ##STR1## R=Methyl, Ethyl, Propyl, Phenyl as an aroma and/or flavor substance. Further, aroma and/or flavor substance compositions are described, which have a content of thiocarbonic acid or carbothioic acids of the general formula I. It is preferred that the content of the thiocarbonic acid or carbothioic acids are between 10.sup.-6 and 5.times.10.sup.-4. Tropical aromas and scent substances in particular can be positively influenced olfactorily and sensorily.