Preparation and Plant Growth-Regulatory Activity of N'-Substituted N-Furfuryloxamides.
作者:Tokujiro KITAGAWA、Chinatsu TSUTSUI、Kumi HAYASHI、Aiko YAMANO
DOI:10.1248/cpb.46.514
日期:——
N'-Substituted N-furfuryloxamides (4) were prepared via condensation of potassium methyl oxalate (8) with furfurylamine (5f) using 1, 1'-oxalyldiimidazole (6), followed by hydrolysis of the resulting amide-ester (10), and finally condensation with aliphatic or aromatic amines (5). The prepared compounds (4) were examined for activity as plant growth regulators using two kinds of plant seeds, namely, those of rape, Brassica campestris L. (Dicotyledoneae) and leek, Allium tuberosum ROTTLER (Monocotyledoneae). N'-Benzyl- and N'-phenyl-N-furfuryloxamides (4b and 4c) and N, N'-difurfuryloxamide (4f) inhibited root growth in seedlings of both species.
N'-取代的N-糠酰胺(4)是通过草酸钾(8)与糠胺(5f)在1,1'-草酰二咪唑(6)的作用下缩合,然后对生成的酰胺-酯(10)进行水解,最后与脂肪族或芳香族胺(5)进一步缩合制备而成的。制备的化合物(4)被检测作为植物生长调节剂的活性,使用两种植物种子进行测试,分别是油菜,芸薹属植物(双子叶植物)和韭菜,葱属植物(单子叶植物)。N'-苄基和N'-苯基-N-糠酰胺(4b和4c)以及N,N'-二糠酰胺(4f)抑制了这两种植物幼苗的根生长。