Salicylic acid ester derivative and its production

A process for producing a salicylic acid ester derivative expressed by the following formula (1)

• (in the formula, R1 is methyl group or ethyl group, R2 is an alkyl group having a carbon number of from 1 to 30, an alkoxy group having a carbon number of from 1 to 30, an aryl group having a carbon number of from 6 to 30, an aryloxy group having a carbon number of from 6 to 30, an aralkyl group having a carbon number of from 6 to 30;
• the group R2 may have, as a substituent, methoxycarbonyl group, ethoxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyloxy group, 2-(ethoxycarbonyl)phenyloxycarbonyl group, 2-(ethoxycarbonyl)phenyloxycarbonyloxy group or an aryloxycarbonyl group or aralkyloxycarbonyl group having a carbon number of from 6 to 10) by reacting phosgenes or an acid halide compound or halogenated formic acid ester expressed by the following formulas (2), (3) or (4)
• (in the formulas, A and A′ are each a halogen, R2 is same as the definition in the formula (1), and R3 is a bivalent alkylene group, arylene group or aralkylene group having a carbon number of from 1 to 30) with a salicylic acid ester expressed by the following formula (5)
• (in the formula, R1 is methyl group or ethyl group) in the presence of a basic compound.

A process for the production of a salicylic acid ester derivative expressed by the following formula (1)-2

• in the formula (1)-2, R1 is methyl group or ethyl group, R22 is an aryl group having a carbon number of from 6 to 30, an aryloxy group having a carbon number of from 6 to 30, an aralkyl group having a carbon number of from 6 to 30, or an aralkyloxy group having a carbon number of from 6 to 30;
• the group R22 may have, as a substituent, methoxycarbonyl group, ethoxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyloxy group, 2-(ethoxycarbonyl)phenyloxycarbonyl group, 2-(ethoxycarbonyl)phenyloxycarbonyloxy group or an aryloxycarbonyl group or aralkyloxycarbonyl group having a carbon number of from 6 to 10, comprising reacting an aromatic ester derivative expressed by the following formula (6)
• in the formula (6), Z groups are same or different groups selected from hydrogen atom and an alkyl group having a carbon number of from 1 to 4, and R22 is same as the group defined in the above formula (1)-2, and a salicylic acid ester expressed by the following formula (5)
• in the presence of a catalyst.

A process for the production of a salicylic acid ester derivative expressed by the above formula (1)-2

• in the formula (1)-2, R1 is methyl group or ethyl group, R22 is an aryl group having a carbon number of from 6 to 30, an aryloxy group having a carbon number of from 6 to 30, an aralkyl group having a carbon number of from 6 to 30, or an aralkyloxy group having a carbon number of from 6 to 30;
• the group R22 may have, as a substituent, methoxycarbonyl group, ethoxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyl group, 2-(methoxycarbonyl)phenyloxycarbonyloxy group, 2-(ethoxycarbonyl)phenyloxycarbonyl group, 2-(ethoxycarbonyl)phenyloxycarbonyloxy group or an aryloxycarbonyl group or aralkyloxycarbonyl group having a carbon number of from 6 to 10, comprising reacting an aromatic ester derivative expressed by the following formula (6)-2
• in the formula, Z groups are same or different groups selected from hydrogen atom and an alkyl group having a carbon number of from 1 to 4, R22 is same as the group defined in the above formula (1)-2, and R23 is an aryl group having a carbon number of from 1 to 30 or an aralkyl group having a carbon number of from 1 to 30, and an aromatic carbonic acid ester expressed by the following formula (7)
• in the formula, R1 is methyl group or ethyl group, in the presence of a catalyst.