Patent ID: 11905229
Assignee: FUDAN UNIVERSITY
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 3:
4. The method of claim 1, wherein in step (S2), the phase transfer catalyst is polyethylene glycol 400 (PEG-400), polyethylene glycol 600 (PEG-600), benzyltriethylammonium chloride (TEBAC) or tetrabutylammonium bromide;
a molar ratio of 2-chloro-N-phenylacetamide (II) to 2,6-dichlorophenol to potassium carbonate to the phase transfer catalyst is 1:(0.5-2):(1-5):(0.001-0.5);
the condensation reaction is performed in an organic solvent selected from the group consisting of chlorobenzene, toluene, xylene, dichlorobenzene, mesitylene, acetonitrile and 1-butanol; and
the condensation reaction is performed at 80-160° C. for 2-15 h.