نتایج جستجو برای: iodine compounds

تعداد نتایج: 247474  

Journal: :Clinical chemistry 1958
A GROSSMANN G F GROSSMANN

T HAS BEEN OUR EXPERIENCE (1) that accurate measurement on large numbers of samples in a minimum amount of working time per specimen can be achieved consistently in the analysis of protein-bound iodine by means of alkaline incineration. However, with the use of incineration, where many samples may be exposed simultaneously in enclosed spaces such as centrifuges, drying ovens, and muffle furnace...

Journal: :Advanced Synthesis & Catalysis 2023

The clean and facile electrochemical synthesis of hypervalent iodine reagents is a fast growing field. In the past 5 years, diverse number reaction types have been established, from fluorinations, oxidative cyclizations, C−N C−H couplings oxidations. Electrochemistry beneficial in terms sustainability as requirement for chemical oxidants eliminated. This contributes to cleaner processes with li...

2017
Joanna Kapusta-Duch Renata Bieżanowska-Kopeć Sylwester Smoleń Mirosław Pysz Aneta Kopeć Ewa Piątkowska Roksana Rakoczy Aneta Koronowicz Łukasz Skoczylas Teresa Leszczyńska

Carrot is a vegetable that contains many nutrients and has strong antioxidant activity as well as pro-health potential. The level of bioactive compounds is strongly connected with the production chain. The thermal treatment of food products induces several biological, physical and chemical changes. In this study, changes in the levels of iodine, total carotenoids, total polyphenols as well as t...

2010
Wiyada Charoensiriwatana Pongsant Srijantr Punthip Teeyapant Jintana Wongvilairattana

BACKGROUND Evidence showed that the occurrence of iodine deficiency endemic areas has been found in every provinces of Thailand. Thus, a new pilot programme for elimination of iodine deficiency endemic areas at the community level was designed in 2008 by integrating the concept of Sufficient Economic life style with the iodine biofortification of nutrients for community consumption. METHODS A...

Journal: :Results in chemistry 2023

8β-Hydroxy-9(11),13-abietadien-12-one (1), an abietane diterpenoid and aryl hydrocarbon receptor (AhR) ligand, was synthesized in six steps from commercially available (+)-dehydroabietylamine (2). We used the hypervalent iodine catalyst phenyliodine dicarboxylate, a safer alternative to toxic organoselenide reagents, for oxidative dearomatization of ferruginol (7) compound 1. Compounds 1 2, as ...

Journal: : 2022

Trivalent iodine compounds have found widespread applications as oxidants and electrophilic group-transfer agents for organic synthesis. Over the last several years, our group has developed new reactions synthetic methods of a class stable trivalent known benziodoxol(on)es. This article summarizes studies on (1) palladium-catalyzed transformations ethynylbenziodoxol(on)es beyond alkynyl transfe...

Journal: :Catalysts 2023

The functionalization of unactivated substrates through the combination copper catalysts and hypervalent iodine reagents represents a versatile tool in organic synthesis to access various classes compounds. derivatives can be used simply as oxidizing agents regenerate catalytic species or they associate starting material. In this review, special attention will paid methodologies which provide i...

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