Ethylenically unsaturated compounds

Abstract From the Canadian patent

Ethylenically unsaturated, compounds of the general formula I (see formula I), where, R1 is alkyl of 1 to 4 carbon atoms cyclopropyl, cyclo-, pentyl, cyclohexyl phenyl or phenyl in which some or all, of the hydrogen atoms have been replaced by radicals R4 not more than two substituents R4 being identical or R1, together with R2 or together with R6 forms a -CH2-CH2- or -CH2-CH2-CH2- bridge, R4 is alkyl of 1 to 24 carbon atoms -OH, -O-R7, -S-R7, (see formulas II, III) -O-CH2-C.ident.N, -O-CH2-COOH, (see formulas IV V, VI, VII, VIII), R2 or R6, independently of one another both are hydro-, gen, or one of the radicals R4 or, where R1 is aryl, R2 or R6 is a direct bond to R1 in the …