34074-22-1Relevant academic research and scientific papers
Iodine(III)-Mediated, Controlled Di- or Monoiodination of Phenols
Satkar, Yuvraj,Yera-Ledesma, Luisa F.,Mali, Narendra,Patil, Dipak,Segura-Quezada, Luis A.,Ramírez-Morales, Perla I.,Solorio-Alvarado, César R.,Navarro-Santos, Pedro
, p. 4149 - 4164 (2019/04/30)
An oxidative procedure for the electrophilic iodination of phenols was developed by using iodosylbenzene as a nontoxic iodine(III)-based oxidant and ammonium iodide as a cheap iodine atom source. A totally controlled monoiodination was achieved by buffering the reaction medium with K3PO4. This protocol proceeds with short reaction times, at mild temperatures, in an open flask, and generally with high yields. Gram-scale reactions, as well as the scope of this protocol, were explored with electron-rich and electron-poor phenols as well as heterocycles. Quantum chemistry calculations revealed PhII(OH)·NH3 to be the most plausible iodinating active species as a reactive "I+" synthon. In light of the relevance of the iodoarene moiety, we present herein a practical, efficient, and simple procedure with a broad functional group scope that allows access to the iodoarene core unit.
DIARYLETHER-BASED FLUOROGENIC PROBES FOR DETECTION OF HYPOCHLOROUS ACID OR HYDROXYL RADICAL
-
Paragraph 0089; 0090, (2016/11/14)
Provided herein are improved fluorogenic compounds and probes that can be used as reagents for measuring, detecting and/or screening hypochlorous acid or hydroxyl radical. The fluorogenic compounds of the invention can produce fluorescence colors, such as green, yellow, red, or far-red. Also provided herein are fluorogenic compounds for selectively staining hypochlorous acid or hydroxyl radical in the mitochondria of living cells. Provided also herein are methods that can be used to measure, directly or indirectly, the presence and/or amount of hypochlorous acid or hydroxyl radical in chemical samples and biological samples such as cells and tissues in living organisms. Also provided are high-throughput screening methods for detecting or screening hypochlorous acid or hydroxyl radical or compounds that can increase or decrease the level of hypochlorous acid or hydroxyl radical in chemical and biological samples.
Ultrasound-promoted rapid and efficient iodination of aromatic and heteroaromatic compounds in the presence of iodine and hydrogen peroxide in water
Ferreira, Irlon M.,Casagrande, Gleison A.,Pizzuti, Lucas,Raminelli, Cristiano
supporting information, p. 2094 - 2102 (2014/07/07)
A rapid and efficient ultrasound-promoted protocol for iodination of aromatic and heteroaromatic compounds, using molecular iodine in the presence of aqueous hydrogen peroxide in water without any cosolvent, has produced versatile iodinated organic molecules with potential application in organic synthesis and medicine in short reaction times and good to excellent yields. Copyright
ARGININE METHYLTRANSFERASE INHIBITORS AND USES THEREOF
-
Paragraph 0339, (2014/11/11)
Described herein are compounds of Formula (I), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds described herein are useful for inhibiting arginine methyltransferase activity. Methods of using the compounds for treating arginine methyltransferase-mediated disorders are also described.
Copper-catalyzed domino route to natural nostoclides and analogues: A total synthesis of nostoclides i and II
Ngi, Samuel Inack,Petrignet, Julien,Duwald, Romain,El Hilali, El Mostafa,Abarbri, Mohamed,Duchêne, Alain,Thibonnet, Jér?me
, p. 2936 - 2941 (2014/03/21)
An original and convenient domino route to natural nostoclides I and II has been developed using a two-step sequence consisting of a copper-cat-alyzed tandem reaction associated with Suzuki cross-coupling. The methodology employed for this total synthesis appeared to be an interesting and suffi-ciently flexible tool to allow the synthesis of numer-ous analogues of these nostoclides.
Iodination of activated aromatic compounds using nanostructure solid acid catalyst
Hosseini, Abolfazl,Khalilzadeh, Mohammad A.,Keipour, Hoda,Tajbakhsh, Mahmood
experimental part, p. 2407 - 2414 (2012/07/02)
Nanoporous silica anchored with sulfonic acid groups effectively catalyzes the iodination of aromatic compounds. The reaction was performed in water using hydrogen peroxide as oxidant. The recyclability of catalyst in green media significantly contributes to the environmental friendliness of the procedure.
Efficient and selective iodination of phenols promoted by iodine and hydrogen peroxide in water
Gallo, Rafael D.C.,Gebara, Karimi S.,Muzzi, Rozanna M.,Raminelli, Cristiano
experimental part, p. 770 - 774 (2010/08/13)
A simple and selective reaction for the preparation of iodinated phenols was developed and phenol derivatives containing electron withdrawing groups were iodinated in very good yields under relatively mild conditions.
3-Aryltetronic acids: Efficient preparation and use as precursors for vulpinic acids
Mallinger, Aurelie,Gall, Thierry Le,Mioskowski, Charles
experimental part, p. 1124 - 1129 (2009/07/11)
3-Aryltetronic acids were prepared in one step by treatment of a mixture of methyl arylacetates and methyl hydroxyacetates with potassium tert-butoxide, via tandem transesterification/Dieckmann condensation. Several mushroom or lichen pigments, vulpinic acids, were synthesized from 3-(4-methoxyphe-nyl) tetronic acid in three steps involving the reaction of the corresponding dianion with an α-ketoester and the dehydration of the tertiary alcohols obtained into mixtures of (E)-and (Z)-alkenes, which were converted under UV irradiation at 254 nm to natural (E)-isomers. Syntheses of pinastric acid, 4,4′-dimethoxyvulpinic acid, and the first synthesis of recently isolated methyl 3′,5′-dichloro-4,4′-di-0-methylatromentate were hence achieved in an efficient manner.
Preparation of a psammaplysene-based library
Georgiades, Savvas N.,Clardy, Jon
, p. 4251 - 4254 (2007/10/03)
(Chemical Equation Presented) A 28-member focused library, based on the pseudosymmetric template of the marine alkaloids psammaplysenes, was prepared from combinations of components that were, in turn, derived from 4-iodophenol.
2-OXO-1,2,4,5-TETRAHYDRO-1,3-BENZODIAZEPIN-3-YL-PIPERIDINES USED AS CGRP ANTAGONISTS
-
Page/Page column 121, (2010/11/24)
The invention relates to novel CGRP antagonists of general formula (I), in which B, R1 and R2 are defined as cited in claim 1, to their tautomers, isomers, diastereomers, enantiomers, hydrates, mixtures and salts, in addition to the hydrates of their salts, in particular their physiologically compatible salts, with inorganic or organic acids or bases. The invention also relates to medicaments containing said compounds, to their use and to a method for their production.
