Unsaturated cyclic amido-substituted ether compounds and preparation process thereof

Unsaturated cyclic amido-substituted ether compound represented by the following general formula (I):

• ##STR36## wherein:
• R.sub.1 is an aromatic ring;
• Z is an alkylene group having 1 or 2 carbon atoms, an alkenylene group having 3 carbon atoms, an oxyalkylene group represented by the general formula --O--C.sub.x H2.sub.x --, wherein x is an integer of 1 or 2, or an aminoalkylene group represented by the general formula:
• ##STR37## wherein y and z are each an integer of 2;
• A is a halogen atom, a hydroxyl group, an oxo group, a cyano group, a nitro group, a mercapto group, a sulfo group, an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 3 carbon atoms, an aminoalkyl group represented by the general formula:
• ##STR38## wherein R' and R" each are an alkyl group having 1 or 2 carbon atoms, or a group represented by the general formula RO-- or RCO--, wherein R is an alkyl group having 1 carbon atom or an aryl group;
• R.sub.2 is a hydrogen atom or a methyl group;
• l is an integer of 0 to 3;
• m is an integer of 4 to 20;
• .alpha. and .beta. each stand for an integer of 0 or 1, with the proviso that .alpha.+.beta.=1.