نتایج جستجو برای: iodides

تعداد نتایج: 7652  

Journal: :Compounds 2022

The iodination of organic compounds is great importance in synthetic chemistry. It opens comprehensive approaches for the synthesis various biologically active compounds. recent advances using elemental iodine or iodides, covering last thirteen years, are objective present review.

Journal: :Journal of Investigative Dermatology 1967

Journal: :The Journal of the Society of Chemical Industry, Japan 1969

Journal: :International journal of peptide and protein research 1986
P K Subramanian R W Woodard

The synthesis of optically pure (R)- and (S)-2-methyl-[3,3,3-2H3] alanines of biological interest is described. The stereochemistry of the reaction of the lithio derivative of (R)-(-)-2,5-dimethoxy-3-benzyl-3-methyl-3,6-dihydropyrazine with alkyl and deuterated alkyl iodides is discussed. The configuration of the newly formed center of chirality in (R)- and (S)-2-methyl-[3,3,3-2H3] alanines is ...

Journal: :Organic & biomolecular chemistry 2007
Chad M Kormos Nicholas E Leadbeater

The microwave-promoted alkoxycarbonylation of aryl iodides using reaction vessels pre-pressurized with carbon monoxide is reported. Reactions are performed using 0.1 mol% palladium acetate as catalyst, DBU as base and are complete within 20-30 min. A range of aryl iodide substrates can be converted to the corresponding esters using this methodology. Primary and secondary alcohols work well wher...

Journal: :Applied microbiology 1970
S A Palumbo J A Alford

Tetrathionate enrichment broth is a complex mixture of salts including iodides and other polythionates, but only thiosulfate (0.0736 m) and tetrathionate (0.0236 m) in combination were toxic for Escherichia coli. Individually, these two salts were not lethal. The lethal action of this thiosulfate-tetrathionate mixture affected only growing cells. A possible relationship between the lethality of...

Journal: :Organic & biomolecular chemistry 2009
Hou-Hua Li Xin-Shan Ye

The Heck coupling of aryl iodides with pyranoid glycals using a catalytic amount of Pd(OAc)(2) to form pyranoid aryl C-glycosides has been achieved. The reaction takes place smoothly in the presence of Ag(2)CO(3) and Cu(OAc)(2) (or DMSO) in acetonitrile. This arylation process, which occurs in a highly regio- and stereo-selective manner, provides a simple, mild, and efficient approach to the sy...

2013
Takahide Fukuyama Takuji Kawamoto Mikako Kobayashi Ilhyong Ryu

Tin-free Giese reactions, employing primary, secondary, and tertiary alkyl iodides as radical precursors, ethyl acrylate as a radical trap, and sodium cyanoborohydride as a radical mediator, were examined in a continuous flow system. With the use of an automated flow microreactor, flow reaction conditions for the Giese reaction were quickly optimized, and it was found that a reaction temperatur...

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