The Carbonyl Groups as Scaffolds in Coordination Chemistry (AOICS) - Lupine Publishers

The Carbonyl Groups as Scaffolds in Coordination Chemistry (AOICS) - Lupine Publishers

Carbonyl compounds are of paramount importance in the formation of C-C bonds and metal-ion control of their reactivity offers a way to promote, inhibit, or control such reactions [1]. The coordination of the oxygen atom of a carbonyl compound to a metal center is likely to modify the reactivity of that group. Products formally derived by attack at the carbonyl group may arise either by direct attack at the carbon atom or by attack at the metal followed by attack at carbon by the coordinated nucleophile. There has been a debate over the relative importance of these two competing mechanisms in biological and biomimetic systems. These two mechanisms may well both be operative in some cases. The principal reactions of carbonyl compounds are of two types: The first type is that in which the nucleophile reacts with the electrophilic carbon atom of a carbonyl group to generate a new tetrahedral center (Figure 1).

https://www.lupinepublishers.com/chemistry-journal/fulltext/the-carbonyl-groups-as-scaffolds-in-coordination-chemistry.ID.000119.php

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Improved Enantioselective Enzymatic Synthesis of (S) - Pregabalin (AOICS) - Lupine Publishers

Improved Enantioselective Enzymatic Synthesis of (S) - Pregabalin (AOICS) - Lupine Publishers

The manuscript aims to throw light on the route of synthesis of (3S)-3-(Amino methyl)-5-methylhexanoic acid: (PREGABALIN), which is a cost effective and efficient route. Pregabalin is a drug that is used in the treatment of epilepsy, neuropathic pain, fibromyalgia, and generalized anxiety disorder. This process of synthesis makes use of a liquid enzyme to avoid cost hike and improves the overall chiral purity of the final product accompanied with improved higher yields and purity. The investigational studies performed in this article will help improve the existing processes in certain aspects as discussed above.

https://www.lupinepublishers.com/chemistry-journal/fulltext/improved-enantioselective-enzymatic-synthesis-of-(S)-pregabalin.ID.000115.php 

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Synthesis and Characterization of Poly (1,4-Benzenedimethylene Phthalate) and the Study of its ability to sorb Pb(II), Cd(II), and Zn(II) ions (AOICS)- Lupine Publishers

Synthesis and Characterization of Poly (1,4-Benzenedimethylene Phthalate) and the Study of its ability to sorb Pb(II), Cd(II), and Zn(II) ions by Fawwaz I Khalili in AOICS in Lupine Publishers

Poly (1,4-benzenedimethylene phthalate) was synthesized by condensation of phthaloyl chloride with 1,4-benzenedimethanol in the presence of pyridine in dry THF at 30 °C . The resulting polymer white powder was characterized by viscosity measurement, FT-IR, 1H and 13C NMR, elemental analysis, thermal (TGA-DSC) methods and scanning electron microscopy. The uptake properties of Pb(II), Zn(II) and Cd(II) metals by the polymer from aqueous solutions were studied by the batch and column techniques as a function of pH, temperature, concentration and contact time.

https://www.lupinepublishers.com/chemistry-journal/fulltext/synthesis-and-characterization-of-poly-1-4-benzenedimethylene-phthalate-and-the-study-of-its-ability-to-sorb-pb(II)-cd(II)-and-Zn(II)-ions.ID.000101.php

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