Research speed reading in 2021. In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. In homogeneous catalysis, catalysts are in the same phase as the reactants. 1191-25-9, Name is 6-Hydroxyhexanoic acid, formurla is C6H12O3. In a document, author is Ricci, A, introducing its new discovery. Product Details of 1191-25-9.
We have synthesized 14 N-phenylurea derivatives, differing in the heterocyclic portion linked in N’-position, and tested their cytokinin-like activity. Three different bioassays were used: the chlorophyll level determination test, the bioassay for the expression of hormone-induced chimeric Pg5-GUS gene and the tomato regeneration test, in which 1,2-benzisoxazole-3-acetic acid (BOAA) was utilized as auxin. The cytokinin-like activity showed by three of these compounds in the regeneration assay seems to be related to their different heterocyclic nature. Results obtained indicate that the N-phenyl-N’-1,3,4-thiadiazol-2-ylurea (compound 4), an isomer of N-phenyl-N’- 1,2,3-thiadiazol-5-ylurea (thidiazuron, TDZ), in the absence of auxin induces shoot regeneration in the 34,2% of the explants cultured; the N-plienyl-N’-(3-chloro-1,2-benzisothiazol-7-yl) urea (compound 10), structurally different from TDZ, in the absence of auxin induces shoot regeneration in the 25,9% of explants, significantly lower than that of TDZ (68,8%). N-phenyl-N’-benzothiazol-6-ylurea (compound 13), structurally different from TDZ, in the absence of auxin induces the 99,5% of shoot regeneration, significantly different from that of the other substances. The addition of auxin in the cotyledon regeneration assay reduces the differences. The compound 13 could be considered a new phenylurea derivative with a highly specific cytokinin-like activity.
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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics