| abstract |
Process for the synthesis of halogenated cyclic compounds A process for the manufacture of a cyclic compound of formula (I) wherein R 1 is a halogenated alkyl group Z and Y designate independently carbon or a heteroatom A is a linking group between Z and Y comprising 0, 1, 2 or 3 atoms in the cycle which comprises (a) adding an acid halide of formula R 1 -C (O)-X wherein X = fluorine, chlorine or bromine and R 1 has the meaning given above, to a vinyl ether of formula (II) CH 2 =CH-OR 2 (II) wherein R 2 is an alkyl group, an aralkyl group or an aryl group to produce an addition product and (b) said addition product is reacted with a compound of formula (III) Y-A-Z (III), Z, Y and A are as defined above. |