Aliphatic Primary Amines
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Synthesis and Evaluation of the Fungal Activity of New Pyrazole-Carboxamides against Colletotrichum gloeosporioides
The pyrazole core has been recognized by their biological properties and included in the synthesis of modern agrochemicals. Part of these studies consists of making structural modifications to pesticides for commercial purposes to increase efficacy. In this article, we present the synthesis of four new pyrazol-4-carboxamide 8a-8d derivatives (PCD), through a
J. Braz. Chem. Soc.. Publicado em: 2020-09
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2. Alternative Non-Ionic Pathway for Uncatalyzed Prins Cyclization: DFT Approach
Density functional theory calculations (ωB97X-D/6-311++G(d,p)) are employed to investigate an alternative pathway for Prins-like cyclization. Although strong acids usually catalyze this reaction, 4-amino-1,3-dioxanes are rapidly obtained in high yields without catalyst when benzenamines and acetaldehyde react at low temperatures, in aqueous medium. Consider
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
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3. Síntese de novos adutos de lapachol com aminas alifáticas.
Neste trabalho foi sintetizada uma série de novos adutos do lapachol com aminas alifáticas primárias. Entre as aminas estão o 2-amino etanol, o 3-amino-1- propanol, a 2-metoxi-etilamina, o 3-metoxi-propilamina, a n-butilamina e a glicina. Todas as reações foram realizadas sob temperatura ambiente e sem solvente. Os novos produtos de estrutura inédita
Publicado em: 2009
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4. Evaluación de la adherencia de uniones adhesivas metálicas con adhesivos epoxídicos modificados
In this work the adhesive properties of epoxy resins based on diglycidyl ether of bisphenol A have been evaluated. The epoxy resin was modified with butadiene and acrylic copolymers to obtain toughened adhesives. The aliphatic primary amines triethylenetetramine, N-(2-aminoethyl)piperazine and isophorone diamine were investigated as curing agents. The adhesi
Polímeros. Publicado em: 2008-03
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5. A new and versatile reagent for incorporating multiple primary aliphatic amines into synthetic oligonucleotides.
A novel and versatile phosphoramidite, N-Fmoc-O1-DMT-O2-cyanoethoxydiisopropylamino-phosphinyl-3-am ino-1,2-propanediol (1, Fig. 1), has been synthesized and used to incorporate primary aliphatic amines into synthetic oligonucleotides. Its convenient preparation and use in solid phase oligonucleotide synthesis is described. Using phosphoramidite 1, an amino-
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6. Bifunctional oligonucleotide probes synthesized using a novel CPG support are able to detect single base pair mutations.
A novel multifunctional controlled pore glass, MF-CPG (Fig. 1), has been synthesized and used to incorporate 3' terminal primary aliphatic amines into synthetic oligonucleotides. MF-CPG consists of a unique succinic acid linking arm which possesses both a masked primary amine for label attachment and a dimethoxytrityl protected hydroxyl for nucleotide chain
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7. Purification and properties of methylamine dehydrogenase from Paracoccus denitrificans.
Methylamine dehydrogenase from Paracoccus denitrificans was purified to homogeneity in two steps from the periplasmic fraction of methylamine-grown cells. The enzyme exhibited a pI value of 4.3 and was composed of two 46,700-dalton subunits and two 15,500-dalton subunits. Each small subunit possessed a covalently bound pyrrolo-quinoline quinone prosthetic gr
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8. Lysosomotropic agents selectively potentiate thrombin-induced acid hydrolase secretion from platelets.
Thrombin induces partial secretion (up to 60%) of beta-N-acetyl-D-hexosaminidase (EC 3.2.1.52) from untreated platelets. Preincubation of platelets with 10 mM NH4Cl for up to 2 hr resulted in a time-dependent and marked stimulation of thrombin-induced secretion of both this enzyme and other acid glycosidases from platelets. The enhancement of the thrombin-in