Reduction of the odor of monothiocarbonate compounds by addition of oxidants

A process to reduce the odor of compounds with at least one five-membered cyclic monothiocarbonate group, the process comprising:

• contacting a compound with at least one five-membered cyclic monothiocarbonate group, in a liquid phase, with an oxidant;
• wherein the compound with at least one five-membered cyclic monothiocarbonate group is a compound of formula (I)
• with R1a to R4a independently from each other representing hydrogen or an organic group with up to 50 carbon atoms, whereby, alternatively, R2a, R4a and the two carbon atoms of the monothiocarbonate group together form a five to ten membered carbon ring;
• or
• a compound of formula (II)
• with R1b to R4b independently from each other representing hydrogen or an organic group with up to 50 carbon atoms, whereby, alternatively, R2b, R4b and the two carbon atoms of the monothiocarbonate group together form a five to ten membered carbon ring, and one of R1b to R4b is a linking group to Z, n represents an integral number of at least 2, and Z represents a n-valent organic group;
• or
• a mixture of compounds of formulae (I) and (II).