Solvent for resin synthesis and method for producing synthetic resin using said solvent

A solvent (C) for resin synthesis, comprising:

• 10 to 99.9999 mass % of an amide-based solvent (A);
• 0.0001 to 5 mass % of a reaction accelerator (B), wherein
• the reaction accelerator (B) is an aliphatic or aromatic tertiary amine compound having one or more tertiary amino groups in the molecule and further having one or more functional groups selected from an ether group, an ester group, and an amide group in the molecule, represented by a general formula (2).
• (In the formula, A, B, and C each independently represent a linear alkyl group having 1 to 22 carbon atoms, a branched alkyl group, an alkyl ether group, an alkyl ester group, or an alkyl amide group, having 3 to 22 carbon atoms, an alicyclic hydrocarbon group having 3 to 22 carbon atoms, an aromatic hydrocarbon group having 6 to 22 carbon atoms, a substituent having an ether group represented by a general formula (3), a substituent having an ester group represented by a general formula (4), or a substituent having an amide group represented by a general formula (5) (In the formula, R5, R7, and R9 each represent a linear alkylene having 1 to 22 carbon atoms, a branched alkylene group or alkylene ether group having 3 to 22 carbon atoms, an alicyclic hydrocarbon group having 3 to 22 carbon atoms, or an aromatic hydrocarbon group having 6 to 22 carbon atoms. R6, R8, R10, and R11 each represent a linear alkyl group having 1 to 22 carbon atoms, a branched alkyl group, an alkyl ether group, an alkyl ester group, or an alkylamide group, having 3 to 22 carbon atoms, an alicyclic hydrocarbon group having 3 to 22 carbon atoms, or an aromatic hydrocarbon group having 6 to 22 carbon atoms. Further, R10 and R11 may each independently be a hydrogen atom, and may be one that forms a saturated 5- to 7-membered ring (including one having an oxygen atom) together with a nitrogen atom carrying them.).)

A solvent (C) for resin synthesis, comprising:

• 10 to 99.9999 mass % of an amide-based solvent (A);
• 0.0001 to 5 mass % of a reaction accelerator (B), and
• a stabilizer (D) and/or an ionic liquid, wherein
• the reaction accelerator (B) is an aliphatic or aromatic tertiary amine compound having one or more tertiary amino groups in a molecule of the reaction accelerator (B), and
• the stabilizer (D) is a compound having active hydrogen in a molecule of the stabilizer (D).