Abstract
The reaction of the N-furfuryloxamic acid sodium salt (12) with 1, 1'-oxalyldiimidazole (ODI) yielded the imidazolide (13) as an intermediate, and this directly reacted with 2-aminothiazole derivatives (14) or 2-aminobenzothiazole derivatives (15) under essentially neutral conditions to afford the N'-[2-(substituted thiazolyl)]- or N'-[2(substituted benzothiazolyl)]-N-furfuryloxamides (6 or 7).The prepared compounds (6 and 7) were examined for plant growth regulatory activity in a seed germination assay. The examination resulted in the discovery of some new revelations that N'-[2-(5, 6-dimethylbenzothiazlyl)]-N-furfuryloxamide (7c) at the concentration of 1.0×10-3M completely inhibited the radicle growth of both rape and leek seedings.
