Log in

Relevant bibliographies by topics / N-isocyanates

Contents

Journal articles

Academic literature on the topic 'N-isocyanates'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'N-isocyanates.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "N-isocyanates"

1

Xiao, Hong, Han X. Xiao, Kurt C. Frisch, and Nelson Malwitz. "Kinetic studies of the reactions between isocyanates and carboxylic acids." High Performance Polymers 6, no. 3 (1994): 235–39. http://dx.doi.org/10.1088/0954-0083/6/3/006.

Full text

Abstract:

Reaction kinetic studies between isocyanates and carboxylic acids were undertaken to evaluate the kinetic parameters. Various isocyanates (phenyl isocyanate, cyclohexyl isocyanate) and carboxylic acids (acetic acid, n-butyric acid, isobutyric acid, dimethylbutyric acid and benzoic acid) were used to study the kinetics of the reactions at different temperatures and in different solvents. It was found that these reactions followed the rate law of second-order reaction. From the Arrhenius plot, the activation energies of these reactions were computed.

APA, Harvard, Vancouver, ISO, and other styles

2

Nyquist, Richard A., Davin A. Luoma, and Curt L. Putzig. "Vibrational Study of Alkyl Isocyanates in Solution." Applied Spectroscopy 46, no. 6 (1992): 972–80. http://dx.doi.org/10.1366/0003702924124394.

Full text

Abstract:

The vasym. NCO frequencies for alkyl isocyanates occur at higher frequency in CHCl3 solution than in CCl4 solution. With the exception of tert-butyl isocyanate, the vasym. NCO mode increases in frequency as the mole % CHCl3/CCl4 increases. The vasym. NCO mode for tert-butyl analog increases in frequency up to a certain mole % CHCl3/CCl4 and then vasym. NCO decreases in frequency. The vasym. NCO mode for n-butyl isocyanate occurs at an exceptionally high frequency for the alkyl isocyanate studied, and this result is explained in terms of the formation of a pseudo six-membered intermolecular hyd

APA, Harvard, Vancouver, ISO, and other styles

3

Dashkin, Ratmir R., Dmitry A. Gordeev, Khusrav Kh Gafurov, and Sergey N. Mantrov. "Preparation of isocyanates by carbamates thermolysis on the example of butyl isocyanate." Butlerov Communications 58, no. 4 (2019): 40–47. http://dx.doi.org/10.37952/roi-jbc-01/19-58-4-40.

Full text

Abstract:

Butyl isocyanate is widely distributed as a precursor for the production of a number of biologically active substances: fungicides, preservatives, insecticides, personal care products, etc. Nowadays, there are a number of methods for the preparation of isocyanates, which can be divided into liquid phase and gas phase. One of the perspective methods for the production of isocyanates is the thermolysis of carbamate and/or the actions of various reaction activating agents, accompanied by the elimination of alcohol, but this process is reversible, which greatly complicates its use in industry. The

APA, Harvard, Vancouver, ISO, and other styles

4

Balci, Metin. "Acyl Azides: Versatile Compounds in the Synthesis of Various Heterocycles." Synthesis 50, no. 07 (2018): 1373–401. http://dx.doi.org/10.1055/s-0036-1589527.

Full text

Abstract:

Carbon–nitrogen bond formation is one of the most important reactions in organic chemistry. Various synthetic strategies for the generation of C–N bonds are described in the literature. For example, primary amines can be easily synthesized by the thermal decomposition of an acyl azide to an isocyanate, i.e. the Curtis rearrangement, followed by hydrolysis; the Curtius rearrangement has been used extensively. Furthermore, the advantage of the Curtius rearrangement is the isolation of acyl azides as well as the corresponding isocyanates. The isocyanates can be converted into various nitrogen-con

APA, Harvard, Vancouver, ISO, and other styles

5

Himbert, Gerhard, and Oliver Gerulat. "Einige Umsetzungen von Inhydrazinen mit Isocyanaten: [2+2]- und [4+2]Cycloadditionen, (Hydrazinoethinyl)metallierung / Some Reactions of Ynehydrazines with Isocyanates: [2+2]- and [4+2]Cycloadditions, (Hydrazinoethynyl)metallation." Zeitschrift für Naturforschung B 56, no. 11 (2001): 1196–204. http://dx.doi.org/10.1515/znb-2001-1115.

Full text

Abstract:

The (silylethynyl)- and the (tolylethinyl)-hydrazines 1a and 1b react with aryl isocyanates 2a-e and arylsulfonyl isocyanates 2f,g to form the corresponding substituted 3-arylimino-(or arylsulfonylimino-) 1,1,2-trimethyl-5-oxopyrazolidinium-4-ides 3a-h. The silyl group in the 4-position can be replaced by a hydrogen atom (formation of 6a-e). Heating of 6d in toluene induced the unequivocal transformation of the betaine to an isomer, the spectrocopic data of which are in concordance with those of the 4-quinolone derivative 7. Aroyl isocyanates 8 react in a [4+2]cycloaddition with la to furnish

APA, Harvard, Vancouver, ISO, and other styles

6

Choi, Moonhyun, Maeng Gi Kim, Kevin Injoe Jung, et al. "Reactivity and Curing Efficiency of Isocyanate Cross-Linkers with Imidazole-Based Blocking Agents for Low-Temperature Curing of Automotive Clearcoats." Coatings 10, no. 10 (2020): 974. http://dx.doi.org/10.3390/coatings10100974.

Full text

Abstract:

For the application of low-temperature curing on automotive clearcoats, isocyanate cross-linkers blocked with imidazole derivatives were newly synthesized. The effect of the alkyl groups in the imidazole derivatives on the deblocking behavior and curing kinetics was investigated. The free isocyanate groups exposed by the deblocking of imidazole-based blocking agents were monitored by real-time Fourier-transform infrared spectroscopy. The bond dissociation energy, activation energy of deblocking, and H–N distance were interpreted through density functional theory simulation of various imidazole

APA, Harvard, Vancouver, ISO, and other styles

7

Carramiñana, Victor, Ana M. Ochoa de Retana, Francisco Palacios, and Jesús M. de los Santos. "Synthesis and Antiproliferative Activity of Phosphorus Substituted 4-Cyanooxazolines, 2-Aminocyanooxazolines, 2-Iminocyanooxazolidines and 2-Aminocyanothiazolines by Rearrangement of Cyanoaziridines." Molecules 26, no. 14 (2021): 4265. http://dx.doi.org/10.3390/molecules26144265.

Full text

Abstract:

Several phosphorus-substituted N-acylated cyanoaziridines 2 and N-carbamoylated cyanoziridines 5 were prepared in good to high yields. N-Acylated cyanoaziridines 2 were used, after ring expansion, in an efficient synthesis of oxazoline derivative 3a and in a completely regio-controlled reaction in the presence of NaI. Conversely, N-carbamoyl cyanoaziridines 5 reacted with NaI to obtain a regioisomeric mixture of 2-aminocyanooxazolines 7. Mild acidic conditions can be used for the isomerization of N-thiocarbamoyl cyanoaziridine 6a into a 2-aminocyanothiazoline derivative 8a by using BF3·OEt2 as

APA, Harvard, Vancouver, ISO, and other styles

8

Gorbatenko, V., and L. Lur'e. "The Synthesis of N-Alkyl-N-aroylaminocarbonyl Isocyanates." Synthesis 1982, no. 11 (2002): 948. http://dx.doi.org/10.1055/s-1982-30013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Chalid, Mochamad. "Synthesis and Characterization of Novel Polyurethanes Based on N,N'-1,2-Ethanediylbis-(4-Hydroxy-Pentanamide) and 4-Hydroxy-N-(2-Hydroxyethyl)-Pentanamide." Advanced Materials Research 277 (July 2011): 112–19. http://dx.doi.org/10.4028/www.scientific.net/amr.277.112.

Full text

Abstract:

As diols, N,N'-1,2-ethanediylbis-(4-hydroxy-pentanamide) (1) and 4-hydroxy-N-(2-hydroxyethyl)-pentanamide (2)) are versatile precursors for the manufacture of bio-polymers. Polymer design, by exploiting the variation in structure of both diol and di-isocyanate monomers, such as backbone structure and presence of functional groups, appears to be a promising biopolymer engineering pathway to synthesize polyurethanes. Both diols (1) and (2) were then polymerized by reaction with aliphatic and aromatic di-isocyanates at 140 °C in (N,N-dimethylacetamide (DMA) solvents using triethylamine (TEA) cata

APA, Harvard, Vancouver, ISO, and other styles

10

Yin, Haolin, Patrick J. Carroll, and Eric J. Schelter. "Reactions of a cerium(iii) amide with heteroallenes: insertion, silyl-migration and de-insertion." Chemical Communications 52, no. 63 (2016): 9813–16. http://dx.doi.org/10.1039/c6cc03719d.

Full text

Abstract:

Reactions of Ce[N(SiMe<sub>3</sub>)Ph<sup>F</sup>]<sub>3</sub> (–Ph<sup>F</sup> = pentafluorophenyl) toward small molecules of the type E<sub>1</sub>CE<sub>2</sub> (E<sub>1</sub>, E<sub>2</sub> = O, S, NR), including carbon disulfide, carbodiimide, carbon dioxide, isocyanate and isothiocyanate are reported, resulting in distinct products, including cerium(iii) dithiocarbamate, cerium(iii) guanidinate, isocyanates and unsymmetric carbodiimides.

APA, Harvard, Vancouver, ISO, and other styles

More sources

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!