نتایج جستجو برای: n sulfonic acid pyridinioum 4 carboxylic acid chloride
تعداد نتایج: 2671259 فیلتر نتایج به سال:
The stability of o-5,5-dimethyl-A’-thiazoline-4-carboxylic acid has been studied under various conditions. In 10 mu cacodylate, pH 6.5, and at 55”C, o-5,5-dimethyld’-thiazoline-4-carboxylic acid (at concentrations lower than 1 mu) is hydrolyzed into N-formyl-n-penicillamine with a half-life of 3 to 4 min. On this basis, it is very unlikely that D-5,5dimethyl-AZ-thiazoline-4-carboxylic acid coul...
The N-methyl-D-aspartate (NMDA) receptor family regulates various central nervous system functions, such as synaptic plasticity. However, hypo- or hyperactivation of NMDA receptors is critically involved in many neurological and psychiatric conditions, such as pain, stroke, epilepsy, neurodegeneration, schizophrenia, and depression. Consequently, subtype-selective positive and negative modulato...
A green and highly effective solvent-free protocol has been reported for the synthesis of N,N′-alkylidene bisamides via the reaction of arylaldehydes (1 eq.) with primary amides (2 eq.) in the presence of saccharin-N-sulfonic acid (SaSA) as a solid-acid catalyst. The mentioned compounds have been obtained in high yields and short reaction times.
گیاهان juniperus excelsa m.beib. ,juniperus communis l. و juniperus sabina l. از گونههای دارویی با ارزش و معطر متعلق به جنس سروکوهی و راسته مخروطیان میباشند که در ارتفاعات رشته کوه البرز پراکندگی دارند. هدف از این پژوهش، شناسایی و مقایسه اجزای تشکیل دهنده اسانس میوه ها و سرشاخههای هوایی این گیاهان میباشد. در این تحقیق میوه و سرشاخههای سه گونه فوق در مرداد سال 1390 از منطقه هزار جریب بهشهر...
Extraction properties of trivalent rare earth ions (RE(III)) from acidic chloride solutions with 6-N,N-di-n-octylcarbamoyl-pyridine-2-carboxylic acid (CPCA), which has three functional groups: an amide, a carboxylic and pyridine, were investigated by slope analyses the distribution ratio (D) RE(III) FT-IR measurements. The dependence D on pH CPCA concentration indicated that 1:3 RE(III)−CPCA co...
In the title compound, C(5)H(5)NO(3), the mol-ecule lies on a crystallographic mirror plane with one half-mol-ecule in the asymmetric unit. An intramolecular C-H⋯O inter-action is present. In the crystal, strong inter-molecular O-H⋯N hydrogen bonds result in the formation of a linear chain structure along [100], and there are also weak C-H⋯O hydrogen bonds between the chains which help to stabi...
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