To see the other types of publications on this topic, follow the link: Catalysed Iodination.

Journal articles on the topic 'Catalysed Iodination'

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

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Catalysed Iodination.'

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.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

SHANMUGATHASAN, SAKTHI, CLAIRE K. JOHNSON, CHRISTINE EDWARDS, E. KEITH MATTHEWS, DAVID DOLPHIN, and ROSS W. BOYLE. "Regioselective halogenation and palladium-catalysed couplings on 5,15-diphenylporphyrin." Journal of Porphyrins and Phthalocyanines 04, no. 03 (2000): 228–32. http://dx.doi.org/10.1002/(sici)1099-1409(200004/05)4:3<228::aid-jpp199>3.0.co;2-7.

Full text
Abstract:
5,15-Diphenylporphyrin was regiospecifically halogenated in high yield to give 5-iodo-15-bromo-10,20-diphenylporphyrin, which was then subjected to Heck and Stille-type coupling reactions to form unsymmetrically substituted porphyrins. The regioselectivity of the iodination of diphenylporphyrins and subsequent formation of amphiphilic porphyrins via palladium-based methodology was also studied. The utility of this method for the synthesis of photodynamic sensitisers has been demonstrated on AR4-2J rat pancreatic carcinoma cells.
APA, Harvard, Vancouver, ISO, and other styles
2

Jeffery, Tuyet. "Copper(I)- and phase-transfer-catalysed iodination of terminal alkynes." Journal of the Chemical Society, Chemical Communications, no. 14 (1988): 909. http://dx.doi.org/10.1039/c39880000909.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kootstra, PR, R. Wever, and JJM de Vijlder. "Thyroid peroxidase: kinetics, pH optima and substrate dependency." Acta Endocrinologica 129, no. 4 (1993): 328–31. http://dx.doi.org/10.1530/acta.0.1290328.

Full text
Abstract:
The oxidation of iodide, guaiacol and 2, 2′-azino-di[3-ethyl-benzthiazoline-(6)-sulphonic acid] and the iodination of tyrosyl residues in bovine serum albumin, catalysed by partly purified thyroid peroxidase, were studied. The enzyme showed pH optima with all electron donors. With the exception of guaiacol, the positions of the pH optima depended upon both the electron donor and hydrogen peroxide concentrations. With increased hydrogen peroxide concentrations the optima shifted to lower pH, and with increased iodide concentration to higher pH. For monoiodotyrosine (MIT) formation in bovine ser
APA, Harvard, Vancouver, ISO, and other styles
4

Zhao, Xia, Fang Ding, Jingyu Li, et al. "Direct C–H iodination of 1,3-azoles catalysed by CuBr 2." Tetrahedron Letters 56, no. 3 (2015): 511–13. http://dx.doi.org/10.1016/j.tetlet.2014.12.029.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Banerjee, R. K., A. K. Bose, T. K. Chakraborty, S. K. De, and A. G. Datta. "Peroxidase-catalysed iodotyrosine formation in dispersed cells of mouse extrathyroidal tissues." Journal of Endocrinology 106, no. 2 (1985): 159–65. http://dx.doi.org/10.1677/joe.0.1060159.

Full text
Abstract:
ABSTRACT A method has been developed for the isolation of cells, high in iodine uptake and peroxidase activity, from the stomach and submaxillary gland of mice. The isolated cells could produce protein-bound monoiodotyrosine, di-iodotyrosine and an unknown iodocompound. The reactions were catalysed by peroxidase and were sensitive to antithyroid drugs and haemoprotein inhibitors but were insensitive to TSH. In-vitro iodination of stomach or submaxillary soluble proteins with the respective peroxidase yielded similar iodocompounds while thyroxine was produced when thyroglobulin was used instead
APA, Harvard, Vancouver, ISO, and other styles
6

Ge, Shao-peng, Xiao-hong Zhang, Jiang-sheng Han, and Ping Zhong. "Copper-Catalysed Direct C–H Bond Oxidative Acetoxylation and Iodination of Indoles." Journal of Chemical Research 36, no. 6 (2012): 356–59. http://dx.doi.org/10.3184/174751912x13360637793465.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Arcadi, Antonio, Orazio Attanasi, Stefano Berretta, Gabriele Bianchi, and Paolino Filippone. "Synthesis of New Cardanol Derivatives through Combined Iodination/Palladium-Catalysed Cross-Coupling Reactions." Synthesis 2006, no. 15 (2006): 2523–30. http://dx.doi.org/10.1055/s-2006-942434.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Goswami, Papori, Shahzad Ali, Md Musawwer Khan та Abu Taleb Khan. "Selective and effective oxone-catalysed α-iodination of ketones and 1,3-dicarbonyl compounds in the solid state". Arkivoc 2007, № 15 (2007): 82–89. http://dx.doi.org/10.3998/ark.5550190.0008.f09.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Stavber, Gaj, Jernej Iskra, Marko Zupan, and Stojan Stavber. "Aerobic oxidative iodination of ketones catalysed by sodium nitrite “on water” or in a micelle-based aqueous system." Green Chemistry 11, no. 8 (2009): 1262. http://dx.doi.org/10.1039/b902230a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Foddy, L., S. C. Stamatoglou, and R. C. Hughes. "An endogenous carbohydrate-binding protein of baby hamster kidney (BHK21 C13) cells. Temporal changes in cellular expression in the developing kidney." Journal of Cell Science 97, no. 1 (1990): 139–48. http://dx.doi.org/10.1242/jcs.97.1.139.

Full text
Abstract:
Asialofetuin (ASF) coupled to Sepharose has been used to isolate a Mr 30,000 protein from Triton X-100 extracts of the baby hamster kidney cell line BHK21 C13. Binding to ASF-Sepharose was specific for terminal beta-galactosyl residues. The lectin requires detergent for optimal solubilization and binding is independent of Ca2+ or reducing reagents. The lectin was labelled in a lactoperoxidase-catalysed iodination of intact BHK21 C13 cells, suggesting that it is associated with the cell surface. Antibodies to the lectin identify in Western blotting cross-reactive components in established cell
APA, Harvard, Vancouver, ISO, and other styles
11

Woloszczuk, W. "Iodogen-catalysed iodination of human calcitonin and Tyr(0)-katacalcin and purification of their mono- and di-iodinated derivatives by chromatofocussing." Journal of Immunological Methods 90, no. 1 (1986): 1–6. http://dx.doi.org/10.1016/0022-1759(86)90376-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Dunford, H. Brian, and Adejare J. Adeniran. "The mechanism of the nonenzymatic iodination of tyrosine by molecular iodine." Biochemistry and Cell Biology 66, no. 9 (1988): 967–78. http://dx.doi.org/10.1139/o88-111.

Full text
Abstract:
Over the pH range 7–10, at very low buffer concentration, the nonenzymatic iodination of tyrosine obeys the rate law[Formula: see text]where kapp is the measured second order rate constant based upon the total initial concentrations of molecular iodine and tyrosine and K2 (units M) is the equilibrium constant for [Formula: see text]. The value of k′ is 3.5 × 10−8 M∙s−1. There are three plausible mechanisms that fit the experimental data. One, the simplest, is a concerted process in which hypoiodous acid attacks tyrosine with its phenolic group unionized. The other two involve the formation of
APA, Harvard, Vancouver, ISO, and other styles
13

Sharma, Vivek, Nishtha ., Rakesh Kumar, and D. D. Agarwal. "Rapid and environment friendly method for acid free iodination of industrially important organics using I2/NaClO3/CH3OH system." Research Journal of Chemistry and Environment 26, no. 12 (2022): 31–43. http://dx.doi.org/10.25303/2612rjce031043.

Full text
Abstract:
I2/NaClO3/CH3OH act as an efficient iodinating agent for many industrially important organics especially those that do not react well with acids. The method can be performed in an acidfree environment, which provides a practical alternative to other procedures avoiding the use of harsh reaction conditions such as high temperatures and pressures, long reaction time and costly metal catalysts. Furthermore, the ambient conditions, simple synthesis procedure and commercially feasible route for synthesis of iodoorganics make the present method more attractive compared to other iodination protocols.
APA, Harvard, Vancouver, ISO, and other styles
14

Nack, William A., Xinmou Wang, Bo Wang, Gang He, and Gong Chen. "Palladium-catalyzed picolinamide-directed iodination of remote ortho-C−H bonds of arenes: Synthesis of tetrahydroquinolines." Beilstein Journal of Organic Chemistry 12 (June 17, 2016): 1243–49. http://dx.doi.org/10.3762/bjoc.12.119.

Full text
Abstract:
A new palladium-catalyzed picolinamide (PA)-directed ortho-iodination reaction of ε-C(sp2)−H bonds of γ-arylpropylamine substrates is reported. This reaction proceeds selectively with a variety of γ-arylpropylamines bearing strongly electron-donating or withdrawing substituents, complementing our previously reported PA-directed electrophilic aromatic substitution approach to this transformation. As demonstrated herein, a three step sequence of Pd-catalyzed γ-C(sp3)−H arylation, Pd-catalyzed ε-C(sp2)−H iodination, and Cu-catalyzed C−N cyclization enables a streamlined synthesis of tetrahydroqui
APA, Harvard, Vancouver, ISO, and other styles
15

Zandi, Sara, and Farzad Nikpour. "A convenient approach for the electrochemical bromination and iodination of pyrazoles." Zeitschrift für Naturforschung B 77, no. 1 (2021): 35–40. http://dx.doi.org/10.1515/znb-2021-0148.

Full text
Abstract:
Abstract Electrochemical bromination and iodination of some pyrazoles were investigated under constant-current (CC) electrolysis in an undivided electrochemical cell. Anodic oxidation of KX salt produces X2 in-situ which can be consumed as an expedient electrophile in pyrazoles aromatic electrophilic substitution reactions or may participate in an X–N coupling reaction with electrochemically catalyzed pyrazolesox to form the halogenated pyrazoles. All reactions proceeded without the need to use any hazardous reagents or catalysts. The reaction conditions are mild and environmentally compatible
APA, Harvard, Vancouver, ISO, and other styles
16

Wang, Xuequan, Changhui Yang, Dan Yue, Mingde Xu, Suyue Duan, and Xianfu Shen. "Iodine-Catalyzed Cascade Annulation of 4-Hydroxycoumarins with Aurones: Access to Spirocyclic Benzofuran–Furocoumarins." Molecules 29, no. 8 (2024): 1701. http://dx.doi.org/10.3390/molecules29081701.

Full text
Abstract:
An attractive approach for the preparation of spirocyclic benzofuran–furocoumarins has been developed through iodine-catalyzed cascade annulation of 4-hydroxycoumarins with aurones. The reaction involves Michael addition, iodination, and intramolecular nucleophilic substitution in a one-step process, and offers an efficient method for easy access to a series of valuable spirocyclic benzofuran–furocoumarins in good yields (up to 99%) with excellent stereoselectivity. Moreover, this unprecedented protocol provides several advantages, including readily available materials, an environmentally beni
APA, Harvard, Vancouver, ISO, and other styles
17

Zhang, Shuo, Ying Chen, Jianwu Wang, Yue Pan, Zhenghu Xu, and Chen-Ho Tung. "An efficient synthesis of gem-diiodoolefins and (E)-iodoalkenes from propargylic amides with a Cu(i)/Cu(iii) cycle." Organic Chemistry Frontiers 2, no. 5 (2015): 578–85. http://dx.doi.org/10.1039/c5qo00043b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

REGOECZI, ERWIN. "Iodogen-catalyzed iodination of transferrin." International Journal of Peptide and Protein Research 22, no. 4 (2009): 422–33. http://dx.doi.org/10.1111/j.1399-3011.1983.tb02111.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Taurog, Alvin, and Martha L. Dorris. "Myeloperoxidase-catalyzed iodination and coupling." Archives of Biochemistry and Biophysics 296, no. 1 (1992): 239–46. http://dx.doi.org/10.1016/0003-9861(92)90568-h.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Jaiswal, Yogesh, Yogesh Kumar, and Amit Kumar. "The palladium(ii)-catalyzed regioselective ortho-C–H bromination/iodination of arylacetamides with in situ generated imidic acid as the directing group: mechanistic exploration." Organic & Biomolecular Chemistry 17, no. 28 (2019): 6809–20. http://dx.doi.org/10.1039/c9ob01082c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Haines, Brandon E., Jin-Quan Yu, and Djamaladdin G. Musaev. "The mechanism of directed Ni(ii)-catalyzed C–H iodination with molecular iodine." Chemical Science 9, no. 5 (2018): 1144–54. http://dx.doi.org/10.1039/c7sc04604a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Schubert, M., J. Engel, L. Thöny-Meyer, F. W. M. R. Schwarze, and J. Ihssen. "Protection of Wood from Microorganisms by Laccase-Catalyzed Iodination." Applied and Environmental Microbiology 78, no. 20 (2012): 7267–75. http://dx.doi.org/10.1128/aem.01856-12.

Full text
Abstract:
ABSTRACTIn the present work, Norway spruce wood (Picea abiesL.) was reacted with a commercialTrametes versicolorlaccase in the presence of potassium iodide salt or the phenolic compounds thymol and isoeugenol to impart an antimicrobial property to the wood surface. In order to assess the efficacy of the wood treatment, a leaching of the iodinated and polymerized wood and two biotests including bacteria, a yeast, blue stain fungi, and wood decay fungi were performed. After laccase-catalyzed oxidation of the phenols, the antimicrobial effect was significantly reduced. In contrast, the enzymatic
APA, Harvard, Vancouver, ISO, and other styles
23

Sdahl, Mark, Jürgen Conrad, Christina Braunberger, and Uwe Beifuss. "Efficient and sustainable laccase-catalyzed iodination ofp-substituted phenols using KI as iodine source and aerial O2as oxidant." RSC Advances 9, no. 34 (2019): 19549–59. http://dx.doi.org/10.1039/c9ra02541c.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Jardim, Guilherme A. M., Eufrânio N. da Silva Júnior, and John F. Bower. "Overcoming naphthoquinone deactivation: rhodium-catalyzed C-5 selective C–H iodination as a gateway to functionalized derivatives." Chemical Science 7, no. 6 (2016): 3780–84. http://dx.doi.org/10.1039/c6sc00302h.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Yamazaki, Ken, Yadagiri Kommagalla, Yusuke Ano, and Naoto Chatani. "A computational study of cobalt-catalyzed C–H iodination reactions using a bidentate directing group with molecular iodine." Organic Chemistry Frontiers 6, no. 4 (2019): 537–43. http://dx.doi.org/10.1039/c8qo01286e.

Full text
Abstract:
A computational methodology was used to collect detailed mechanistic information on the cobalt-catalyzed C–H iodination of aromatic amides with molecular iodine using an N,N′-bidentate directing group.
APA, Harvard, Vancouver, ISO, and other styles
26

Escobar, Erwin, Grace Nisola, and Wook-Jin Chung. "Facile preparation of azido functionalized polyvinyl chloride (PVC) nanofiber (NF) membrane for various applications." Palawan Scientist 15, no. 2 (2023): 14–20. http://dx.doi.org/10.69721/tps.j.2023.15.2.02.

Full text
Abstract:
Polyvinyl chloride (PVC) nanofiber (NF) membrane functionalized with azido groups (Az-PVC NF) was prepared using various techniques with the aim of enhancing azide substitution of chlorine in the PVC backbone. Azidation strategies that were investigated include: (1) catalyst-assisted azidation in organic solvent, (2) phase transfer catalyzed azidation in aqueous media, (3) phase transfer catalyzed azidation in aqueous media using pre-iodinated membrane, and (4) phase transfer catalyzed azidation in aqueous media of electrospun pre-iodinated PVC granules prepared via Finkelstein reaction. Resul
APA, Harvard, Vancouver, ISO, and other styles
27

Yang, Yang, Jian Zhang, Fang Wan, E. Liu, and Huaxin Zhang. "Highly Efficient 1-Iodination of Terminal Alkynes Catalyzed by Inorganic or Organic Bases." Catalysts 14, no. 9 (2024): 610. http://dx.doi.org/10.3390/catal14090610.

Full text
Abstract:
1-Iodoalkynes are one type of the most reactive and the most practical intermediates in organic synthesis. Here, some facile and efficient methods for the 1-iodination of terminal alkynes are developed using N-iodosuccinimide (NIS) as an iodination reagent and some inexpensive mild bases as catalysts. K2CO3 and 4-dimethylaminopyridine (DMAP) have been proven to be the most suitable inorganic and organic bases, succeeding in 17 examples with excellent yields (up to 99%).
APA, Harvard, Vancouver, ISO, and other styles
28

Saha, Moumita, and Asish R. Das. "Hypervalent iodine promoted ortho diversification: 2-aryl benzimidazole, quinazoline and imidazopyridine as directing templates." Organic & Biomolecular Chemistry 18, no. 5 (2020): 941–55. http://dx.doi.org/10.1039/c9ob02533b.

Full text
Abstract:
(Diacetoxyiodo)benzene (PIDA) promoted Pd-catalyzed efficient ortho C(sp<sup>2</sup>)–H acetoxylation, arylation, iodination and nitration are achieved using (NH)-free 2-substituted benzimidazole, quinazoline and imidazopyridine as chelating substrates.
APA, Harvard, Vancouver, ISO, and other styles
29

Leboeuf, David, Jennifer Ciesielski, and Alison Frontier. "Gold(I)-Catalyzed Iodination of Arenes." Synlett 26, no. 08 (2015): 1138. http://dx.doi.org/10.1055/s-0034-1380682.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Frontier, Alison, David Leboeuf, and Jennifer Ciesielski. "Gold(I)-Catalyzed Iodination of Arenes." Synlett 25, no. 03 (2013): 399–402. http://dx.doi.org/10.1055/s-0033-1340321.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Yang, Chang-Tong, Ruenn Chai Lai, Vanessa Jing Xin Phua, et al. "Standard Radio-Iodine Labeling Protocols Impaired the Functional Integrity of Mesenchymal Stem/Stromal Cell Exosomes." International Journal of Molecular Sciences 25, no. 7 (2024): 3742. http://dx.doi.org/10.3390/ijms25073742.

Full text
Abstract:
Mesenchymal stem/stromal cells (MSCs) are an extensively studied cell type in clinical trials due to their easy availability, substantial ex vivo proliferative capacity, and therapeutic efficacy in numerous pre-clinical animal models of disease. The prevailing understanding suggests that their therapeutic impact is mediated by the secretion of exosomes. Notably, MSC exosomes present several advantages over MSCs as therapeutic agents, due to their non-living nature and smaller size. However, despite their promising therapeutic potential, the clinical translation of MSC exosomes is hindered by a
APA, Harvard, Vancouver, ISO, and other styles
32

Zhu, Di, Wen-Kun Luo, Luo Yang, and Da-You Ma. "Iodine-catalyzed oxidative multiple C–H bond functionalization of isoquinolines with methylarenes: an efficient synthesis of isoquinoline-1,3,4(2H)-triones." Organic & Biomolecular Chemistry 15, no. 34 (2017): 7112–16. http://dx.doi.org/10.1039/c7ob01539a.

Full text
Abstract:
An iodine-catalyzed multiple C–H bond functionalization of isoquinolines with methylarenes via a successive benzylic sp<sup>3</sup> C–H iodination/N-benzylation/amidation/double sp<sup>2</sup> C–H oxidation sequence to yield isoquinoline-1,3,4(2H)-triones is developed for the first time.
APA, Harvard, Vancouver, ISO, and other styles
33

Ren, Yun-Lai, Huantao Shang, Jianji Wang, et al. "Nitrogen Dioxide-Catalyzed Electrophilic Iodination of Arenes." Advanced Synthesis & Catalysis 355, no. 17 (2013): 3437–42. http://dx.doi.org/10.1002/adsc.201300581.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Xu, Senmiao. "Palladium-Catalyzed Enantioselective Isodesmic C—H Iodination." Chinese Journal of Organic Chemistry 43, no. 9 (2023): 3325. http://dx.doi.org/10.6023/cjoc202300050.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Ni, Shengyang, Jia Cao, Haibo Mei, Jianlin Han, Shuhua Li, and Yi Pan. "Sunlight-promoted cyclization versus decarboxylation in the reaction of alkynoates with N-iodosuccinimide: easy access to 3-iodocoumarins." Green Chemistry 18, no. 14 (2016): 3935–39. http://dx.doi.org/10.1039/c6gc01027j.

Full text
Abstract:
We report the green, sunlight-initiated radical conversion of aryl alkynoates to 3-iodocoumarins using NIS without the use of a catalyst or additive. Mechanistic studies indicate that the reaction proceeds through iodination, spirocyclization and ring expansion to form the kinetic product.
APA, Harvard, Vancouver, ISO, and other styles
36

Isaad, Jalal. "Acidic ionic liquid supported on silica-coated magnetite nanoparticles as a green catalyst for one-pot diazotization–halogenation of the aromatic amines." RSC Adv. 4, no. 90 (2014): 49333–41. http://dx.doi.org/10.1039/c4ra05705h.

Full text
Abstract:
Acidic ionic liquid was immobilized on silica-coated magnetite nanoparticles (Fe<sub>3</sub>O<sub>4</sub>@SILnP) and used as an efficient heterogeneous catalyst for the diazotization–iodination reaction of different aromatic amines under solvent-free conditions at room temperature.
APA, Harvard, Vancouver, ISO, and other styles
37

Iida, Keisuke, Shunsuke Ishida, Takamichi Watanabe, and Takayoshi Arai. "Disulfide-Catalyzed Iodination of Electron-Rich Aromatic Compounds." Journal of Organic Chemistry 84, no. 11 (2019): 7411–17. http://dx.doi.org/10.1021/acs.joc.9b00769.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Leboeuf, David, Jennifer Ciesielski, and Alison J. Frontier. "ChemInform Abstract: Gold(I)-Catalyzed Iodination of Arenes." ChemInform 45, no. 29 (2014): no. http://dx.doi.org/10.1002/chin.201429070.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Guilarte, Verónica, M. Pilar Castroviejo, Estela Álvarez, and Roberto Sanz. "Combined directed ortho-zincation and palladium-catalyzed strategies: Synthesis of 4,n-dimethoxy-substituted benzo[b]furans." Beilstein Journal of Organic Chemistry 7 (September 12, 2011): 1255–60. http://dx.doi.org/10.3762/bjoc.7.146.

Full text
Abstract:
A new route to regioselectively dialkoxy-functionalized benzo[b]furan derivatives has been developed from 3-halo-2-iodoanisoles bearing an additional methoxy group, which have been accessed through an ortho-zincation/iodination reaction. Two palladium-catalyzed processes, namely a Sonogashira coupling followed by a tandem hydroxylation/cyclization sequence, give rise to new and interesting dimethoxy-substituted benzo[b]furans.
APA, Harvard, Vancouver, ISO, and other styles
40

Hänsicke, André, Michael Beyermann, Johannes Oehlke, et al. "Synthesis of [3H-TyrB26]-human insulin by enzymic semisynthesis." Collection of Czechoslovak Chemical Communications 53, no. 11 (1988): 2936–43. http://dx.doi.org/10.1135/cccc19882936.

Full text
Abstract:
A procedure is described for tritium labeling of human insulin in position TyrB26 by means of trypsin catalyzed condensation of DiBoc-DOI with [Nε-Boc, 3H-TyrB26]-IOP, subsequent deprotection and purification by HPLC. The tritium labeling of the octapeptide was accomplished by dehalotritiation of the corresponding DitB26-octapeptide which was obtained both by iodination of Nε-Boc-IOP and by total synthesis.
APA, Harvard, Vancouver, ISO, and other styles
41

Rong, Nianxin, Yongsheng Yuan, Huijie Chen, et al. "A practical route to 2-iodoanilines via the transition-metal-free and base-free decarboxylative iodination of anthranilic acids under oxygen." Organic Chemistry Frontiers 8, no. 16 (2021): 4479–84. http://dx.doi.org/10.1039/d1qo00461a.

Full text
Abstract:
A new approach for synthesizing 2-iodoanilines via the transition-metal-free and base-free decarboxylative ortho-C–H iodination of anthranilic acids with a combination of KI and I<sub>2</sub> as the halogen donor and catalyst under oxygen has been developed.
APA, Harvard, Vancouver, ISO, and other styles
42

Jafarzadeh, Mohammad, Kamal Amani, and Farzad Nikpour. "Effective and regioselective iodination of arenes using iron(III) nitrate in the presence of tungstophosphoric acid." Canadian Journal of Chemistry 83, no. 10 (2005): 1808–11. http://dx.doi.org/10.1139/v05-187.

Full text
Abstract:
An easy, cheap, and effective method for iodination of various aromatic compounds takes place with molecular iodine and iron nitrate nonahydrate as the oxidant in the presence of a catalytic amount of tungstophosphoric acid in dichloromethane, with good yield and high regioselectivity under very mild conditions.Key words: iodination, arenes, iodine, iron(III) nitrate, tungstophosphoric acid.
APA, Harvard, Vancouver, ISO, and other styles
43

Champion, B. R., D. C. Rayner, P. G. Byfield, K. R. Page, C. T. Chan, and I. M. Roitt. "Critical role of iodination for T cell recognition of thyroglobulin in experimental murine thyroid autoimmunity." Journal of Immunology 139, no. 11 (1987): 3665–70. http://dx.doi.org/10.4049/jimmunol.139.11.3665.

Full text
Abstract:
Abstract We have used two clonotypically distinct thyroglobulin (Tg)-specific, I-Ak restricted monoclonal T cell populations to investigate the role of thyroid peroxidase-catalyzed iodination in Tg recognition by autoreactive T cells. The results showed that these T cells could recognize Tg only it it was sufficiently iodinated. Unlike normal mouse Tg, noniodinated mouse Tg was unable to induce significant thyroid lesions but could trigger the production of Tg autoantibodies. In these experiments, the importance of T cell recognition of iodination-related epitopes was emphasized by the inabili
APA, Harvard, Vancouver, ISO, and other styles
44

Mairhofer, Christopher, David Naderer та Mario Waser. "Tetrabutylammonium iodide-catalyzed oxidative α-azidation of β-ketocarbonyl compounds using sodium azide". Beilstein Journal of Organic Chemistry 20 (5 липня 2024): 1510–17. http://dx.doi.org/10.3762/bjoc.20.135.

Full text
Abstract:
We herein report the oxidative α-azidation of carbonyl compounds by using NaN3 in the presence of dibenzoyl peroxide catalyzed by tetrabutylammonium iodide (TBAI). By utilizing these readily available bulk chemicals a variety of cyclic β-ketocarbonyl derivatives can be efficiently α-azidated under operationally simple conditions. Control experiments support a mechanistic scenario involving in situ formation of an ammonium hypoiodite species which first facilitates the α-iodination of the pronucleophile, followed by a phase-transfer-catalyzed nucleophilic substitution by the azide. Furthermore,
APA, Harvard, Vancouver, ISO, and other styles
45

Yin, Xinchi, You Jiang, Shiying Chu, Guofeng Weng, Xiang Fang, and Yuanjiang Pan. "Copper-Catalyzed Decarboxylative Iodination Reaction in the Gas Phase." Acta Chimica Sinica 76, no. 6 (2018): 436. http://dx.doi.org/10.6023/a18020080.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Wu, Qiaolin, Qing Su, Chuanguang Wu, et al. "Copper-Catalyzed Regioselective C–H Iodination of Aromatic Carboxamides." Synlett 27, no. 06 (2016): 868–75. http://dx.doi.org/10.1055/s-0035-1561335.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Sutherland, Andrew, and Nikki Sloan. "Recent Advances in Transition-Metal-Catalyzed Iodination of Arenes." Synthesis 48, no. 18 (2016): 2969–80. http://dx.doi.org/10.1055/s-0035-1562439.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Asakura, Jun-ichi, and Morris J. Robins. "Cerium(iv) catalyzed iodination at C5 of uracil nucleosides." Tetrahedron Letters 29, no. 23 (1988): 2855–58. http://dx.doi.org/10.1016/0040-4039(88)85229-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Schreib, Benedikt S., and Erick M. Carreira. "Palladium-Catalyzed Regioselective C–H Iodination of Unactivated Alkenes." Journal of the American Chemical Society 141, no. 22 (2019): 8758–63. http://dx.doi.org/10.1021/jacs.9b03998.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Ren, Yun-Lai, Huantao Shang, Jianji Wang, et al. "ChemInform Abstract: Nitrogen Dioxide-Catalyzed Electrophilic Iodination of Arenes." ChemInform 45, no. 19 (2014): no. http://dx.doi.org/10.1002/chin.201419057.

Full text
APA, Harvard, Vancouver, ISO, and other styles
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!