Oxime ethers of {TAIL ~ 2,6 dioxabicyclooctanones} of the formula I, ##{HEAD ~ STR6}## in which R1 and R2 are the same or different and are selected from 
Oxime ethers of { TAIL ~ 2,6 dioxabicyclooctanones } of the formula I , # # { HEAD ~ STR6 } # # in which R1 and R2 are the same or different and are selected from
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH