Heterocyclic-substituted hydrazides and hydrazones as plant growth
申请人:Gulf Oil Corporation
公开号:US04319026A1
公开(公告)日:1982-03-09
A class of novel compounds is disclosed which has utility as plant growth regulators, having the general formula: ##STR1## in which X is O or S, Y is one of the group: ##STR2## R is H or CH.sub.3, Q is phenyl or chlorophenyl when Q' is hydrogen, or Q and Q' together may form the remainder of a benzene ring.
Method for producing ester group-containing compound
申请人:DIC Corporation
公开号:US11370740B2
公开(公告)日:2022-06-28
The present invention provides a novel method for producing an ester group-containing compound and a derivative produced using the compound as a synthetic intermediate. The invention also provides a polymerizable composition containing the compound obtained by the production method and a film-shaped polymer obtained by polymerizing the polymerizable composition. The present invention is a method for producing an ester group-containing compound, the method including a mixing step of mixing a condensing agent, a Bronsted acid, a carboxylic acid, and a phenol or an alcohol to prepare a reaction mixture. The Bronsted acid selected is other than the condensing agent, the carboxylic acid, and the phenol.
Nagarajan,K. et al., Indian Journal of Chemistry, 1971, vol. 9, p. 748 - 754
作者:Nagarajan,K. et al.
DOI:——
日期:——
New Fe(II) complexes with Schiff base ligand: Synthesis, spectral characterization, magnetic studies and thermal stability
作者:Marta A. Fik、Marta Löffler、Marek Weselski、Maciej Kubicki、Maria J. Korabik、Violetta Patroniak
DOI:10.1016/j.poly.2015.10.050
日期:2015.12
New ligand (2)-2-(1-methyl-2-(pyridine-2-ylmethylene)hydrazinyl)benzoxazole (L) reacts with Fe(II) ions what results in formation of mononuclear complexes of 2:1 stoichiometry (complexes 1 and 2), which crystallize in the rare space group la-3d (No. 230) with solvent-acetonitrile-molecules in the crystal structure. Obtained complexes were studied in terms of their properties in the solid state concerning thermal stability and magnetism. N-3-donor Schiff base type Lisa strong crystal field ligand, therefore both obtained Fe(II) complexes are diamagnetic at room temperature what has been confirmed by magnetic susceptibility measurements and Mossbauer spectroscopy. However, the reversible LS ((1)A(1)) <-> HS (T-5(2)) spin-transitions may be observed starting above room temperature, remaining incomplete even up to 400 K. The thermal stability and electronic reflectance spectra of complexes were determined as well. (C) 2015 Elsevier Ltd. All rights reserved.
New Mn(II) complexes with benzoxazole-based ligands: Synthesis, structure and their electrochemical behavior
作者:Dawid Marcinkowski、Marta A. Fik、Teresa Łuczak、Maciej Kubicki、Violetta Patroniak
DOI:10.1016/j.poly.2017.11.039
日期:2018.2
Six complexes of various Mn(II) salts: MnBr2 center dot 4H(2)O (1), Mn(NO3)(2)center dot 4H(2)O (2), MnCl2 center dot 4H(2)O (3) with 2-(1-methyl-2-(pyridin-2-ylmethylene)hydrazinyl)benzo[d]oxazole L-A (complexes 1A-3A) and 2-(24(1H-imidazol-4-yl)methylene)-1-methylhydrazinyl)benzo[d]oxazole HLB (complexes 1B-3B) have been synthesited. All complexes were obtained in 1:1 stoichiometry. Their structures have been established through analytical and spectroscopic (ESI-MS, IR, H-1 NMR and microanalyses) methods as well as by X-ray structure determinations. In order to gain some insights into the electron-richness of studied systems, the electrochemical properties of ligands L-A and HLB and complexes 1A and 1B were investigated by cyclic voltammetry. Complexes 1A and 1B were chosen due to isostructurality what allows to the direct comparison of their behavior. The impact of pyridine and imidazole substituents on electrochemical behavior of synthesized systems was evaluated and showed that the presence of NH moiety in imidazole ring of HLB does not feasible the adsorption on the bare gold electrode. (C) 2017 Elsevier Ltd. All rights reserved.