The racemization is particularly preferably carried out in organic solvents with or without the addition of water at {HEAD ~ temperatures} of between 150° C. and 180° C. at {TAIL ~ a pressure} of up to 10 bar for 20 to 26 hours 
The racemization is particularly preferably carried out in organic solvents with or without the addition of water at { HEAD ~ temperatures } of between 150 ° C. and 180 ° C. at { TAIL ~ a pressure } of up to 10 bar for 20 to 26 hours
OTH 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 OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH