PURPOSE: To obtain the titled compound useful as an intermediate for a dyestuff of pressure-sensitive copying paper inexpensively in high purity, by reacting an acylaminophenol with dichlorobenzene or trichlorobenzene in the presence of both an acid binder and a copper catalyst, followed by hydrolysis.
CONSTITUTION: A compound shown by the formulaI(R1 is methyl or ethyl; R2 is H, ethyl, propyl, butyl, or phenyl) is reacted with a compound shown by the formula II (n is 1 or 2) in the presence of an acid binder (e.g., magnesium oxide) and a copper catalyst (e.g., cupric oxide) to give a compound shown by the formula III, which is hydrolyzed to give the desired compound shown by the formula IV. The reaction is carried out at 150W250°C for 24W40hr, the amount of the copper catalyst used is 0.1W1.0mol, preferably 0.3W0.5mol based on the compound shown by the formulaI, and the amount of the acid binder is 0.8W 1.4mol based on the compound shown by the formulaI.
| JPH1112342 | PRODUCTION OF ISOCYANURATE RING-CONTAINING POLYISOCYANATES |
| JP2003104978 | METHOD FOR PRODUCING EPOXIDE |
NUMA TATSUYA
NOMURA MASAHARU
