METHOD FOR PRODUCING BISCHLOROFORMATE COMPOUND, POLYCARBONATE OLIGOMER HAVING SMALL NUMBER OF MONOMERS AND SOLUTION CONTAINING BISCHLOROFORMATE COMPOUND

摘要

A dihydric phenol compound represented by the following formula (2), a phosgene compound, and an aliphatic tertiary amine are mixed together using a hydrophobic organic solvent to produce bischloroformate that is represented by the following formula (1) and has an average number of repeating units (n) of 1.99 or less. In the formulae (1) and (2), Ar is a divalent aromatic group.