The phenoxyphenyl amidine has general formula (I). The phenoxyphenyl amidine having general formula (I), is new. R 1>；H, mercapto or methyl, linear or branched 1-8C alkyl, 1-12C alkyl, 2-12C alkenyl, 2-12C alkinyl, cyclic 3-8C alkyl, 4-8C alkenyl or 4-8C alkinyl, where single or multiple carbons are replaced with heteroatoms selected from N, O, P or S in ring system of all cyclic groups, which is selected from -R', -X, -OR', -NR' 2, SR', -SiR' 3, -COOR', CN or -CONR' 2, where R'=H or 1-12C alkyl, -SH, -SR 1>；3, where R 1>；3=1-12C alkyl； R 2>；methyl or ethyl, linear or branched 1-8C alkyl, 1-12C alkyl, 2-12C alkenyl, 2-12C alkinyl, cyclic 3-8C alkyl, 4-8C alkenyl, 4-8C alkinyl, 5-18C aryl, 7-19C arylalkyl or 7-19C alkaryl, where single or multiple carbons are replaced with heteroatoms selected from N, O, P or S in ring system of all cyclic groups, which is selected from -R', -X, -OR', -NR' 2, SR', -SiR' 3, -COOR', CN or -CONR' 2, where R'=H or 1-12C alkyl； R 3>；-CN, -SH, -SR 1>；3, -OR', -(C=O)-R 1>；3, ethyl or cyclopropyl, linear or branched 2-8C alkyl, 2-12C alkyl, 2-12C alkenyl, 2-12C alkinyl, 3-8C alkyl, 4-8C alkenyl, 4-8C alkinyl, 5-18C aryl, 7-19C arylalkyl or 7-19C alkaryl, where single or multiple carbons are replaced with heteroatoms selected from N, O, P or S in ring system of all cyclic groups, which is selected from -R', -X, -OR', -NR' 2, SR', -SiR' 3, -COOR', CN or -CONR' 2； and R 4>； and R 5>；H, -X, -CN, -SH, -SR 1>；3, -(C=O)-R 1>；3, -CF 3, -CF 2H, or methyl, linear or branched 1-12C alkyl, 2-12C alkenyl, 2-12C alkinyl, cyclic 3-8C alkyl, 4-8C alkenyl, 4-8C alkinyl, 5-18C aryl, 7-19C arylalkyl or 7-19C alkaryl, where single or multiple carbons are replaced with heteroatoms selected from N, O, P or S in ring system of all cyclic groups, which is selected from -R', -X, -OR', -NR' 2, SR', -SiR' 3, -COOR', CN or -CONR' 2. Independent claims are included for: (1) a method for preparing phenoxyphenyl amidines； (2) a method for protecting
