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