| abstract |
There are disclosed substituted lactones of the formula ##STR1## wherein A stands for --CH--CH 2 X (X being Cl, Br or OH), --CHY--CHY--(Y being Cl or Br), or ##STR2## and R 1 , R 2 and R 3 are the same or different radicals from the group of hydrogen and C 1 to C 10 alkyls, at least one of the radicals R 1 , R 2 and R 3 being such an alkyl radical, and process for making the same. |