{HEAD ~ The present invention} is also directed to processes of preparing {TAIL ~ dithiane} wherein the 13C atom is directly bonded to one or two deuterium atoms 
{ HEAD ~ The present invention } is also directed to processes of preparing { TAIL ~ dithiane } wherein the 13C atom is directly bonded to one or two deuterium atoms
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH