5080-22-8Relevant articles and documents
N,N′-Dihydroxy-N,N′-diisopropylhexanediamide, a siderophore analogue, as a possible iron chelating agent for hydroponic conditions: metal equilibrium studies
Martins, Jo?o G.,Ferreira, Carlos M. H.,Dey, Suvendu S.,Barros, Maria Teresa,Soares, Helena M. V. M.
, p. 1079 - 1088 (2017)
Synthetic iron chelates are the most efficient iron fertilizers. The stability in solution of the iron chelates in the presence of other metal cations that may compete with iron for the chelating agent in nutrient solutions is crucial for its effectiveness in supplying iron to plants. In this work, the chelating properties of N,N-dihydroxy-N,N′-diisopropylhexanediamide (DPH), a biological model of the natural siderophore rhodotorulic acid, were evaluated in order to assess its potentialities for being used, as an iron chelate, in hydroponic cultures. For this purpose, the complexation for the metals [Ca(II), Cu(II), Mg(II), Mn(II) or Zn(II)]–DPH–OH systems has been studied using pH potentiometry and the overall stability constants have been determined for the first time. For all M–DPH–OH systems, MHL and ML species were identified. For [Cu(II), Mn(II) or Zn(II)]–DPH–OH systems, the M2L3 species was detected, whereas formation of ML(OH) species was found in the [Ca(II) or Mg(II)]–DPH–OH systems. Finally, the chemical stability of iron chelated with DPH in hydroponic conditions was assessed by computer chemical simulations and compared with the one predicted when iron is chelated with ethylenediamine-N,N′-bis(o-hydroxyphenyl)acetic acid (o,o-EDDHA) in similar conditions.
LOW TOXICITY NMP SUBSTITUTES AND USES THEREOF
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Paragraph 0154, (2021/08/20)
The present technology is directed to compounds Formulas I, II, III, and IV as well as compositions that include one or more of the compounds and methods of making the compounds. In particular, the present compounds may be used as a replacement for NMP in compositions to produce lower toxicity compositions.
Method for manufacturing ammonia-N
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Paragraph 0075-0076; 0083-0084, (2018/12/01)
PROBLEM TO BE SOLVED: To provide a method for producing an N-alkyl hydroxylamine, which produces a pure N-alkyl hydroxylamine in a high yield under a mild condition by a simple method, does not require a strict time management and is advantageous for industrial-scale production. SOLUTION: The method for producing an N-alkyl hydroxylamine includes bringing an N-alkyl nitro compound into contact with a hydrogen source in the presence of a solid catalyst supporting palladium on silica and in the absence of a significant quantity of a fourth reaction component. The method for producing an N-alkyl hydroxylamine includes bringing (A) an N-alkyl nitro compound into contact only with (B) a hydrogen source and (C) a solid catalyst supporting palladium on silica, or bringing (A) an N-alkyl nitro compound into contact only with (B) a hydrogen source, (C) a solid catalyst supporting palladium on silica and (D) a solvent that does not deactivate catalytic activity and has a pKa of ≥12. COPYRIGHT: (C)2012,JPOandINPIT
