نتایج جستجو برای: Halogen-exchange fluorination

تعداد نتایج: 195602  

Journal: :Journal of Synthetic Organic Chemistry, Japan 1967

Improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (Sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. This process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) followed by a halogen-exchange fluorination. This is the first synthesis of Sev...

Improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (Sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. This process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) followed by a halogen-exchange fluorination. This is the first synthesis of Sev...

Journal: :iranian journal of pharmaceutical research 0
abolghasem moghimi department of chemistry, imam hossein university, tehran, iran mostafa vojdani 1.department of chemistry, imam hossein university, tehran, iran 2. department of nuclear medicine, the educational, research and clinical center, dr. masih daneshvari hospital, tehran, iran ali r banan department of chemistry, imam hossein university, tehran, iran ahmad mollaei department of chemistry, imam hossein university, tehran, iran mojtaba mahmoodian department of chemistry, imam hossein university, tehran, iran sayyed mojtaba moosavi department of chemistry, imam hossein university, tehran, iran

improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. this process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (hfip) followed by a halogen-exchange fluorination. this is the first synthesis of sev...

2015
Abolghasem Moghimi Mostafa Vojdani Ali R. Banan Ahmad Mollaei Mojtaba Mahmoodian Sayyed Mojtaba Moosavi

Improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (Sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. This process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) followed by a halogen-exchange fluorination. This is the first synthesis of Sev...

Journal: :The Journal of organic chemistry 2001
K C Caster C G Keck R D Walls

This report details the synthesis of several benzonorbornadienes by Diels--Alder cycloaddition of cyclopentadiene derivatives with substituted benzyne intermediates, which were generated by low-temperature metal--halogen exchange of halobenzenes. General conditions were developed, allowing synthesis of most benzonorbornadienes described herein at the multigram scale with isolated yields approac...

2017
Mehrdad Balandeh Christopher Waldmann Daniela Shirazi Adrian Gomez Alejandra Rios Nathanael Allison Asad Khan Saman Sadeghi

Electrochemical fluorination of methyl(phenylthio)acetate was achieved using tetrabutylammonium fluoride (TBAF). Electrochemical fluorination was performed under potentiostatic anodic oxidation using an undivided cell in acetonitrile containing TBAF and triflic acid. The influence of several parameters including: oxidation potential, time, temperature, sonication, TBAF concentration and triflic...

Journal: :Chemistry & biodiversity 2012
Melinda Nonn Loránd Kiss Mikko M Hänninen Reijo Sillanpää Ferenc Fülöp

Fluorinated highly functionalized cispentacin derivatives were synthetised starting from an unsaturated bicyclic β-lactam through C=C bond functionalization via the dipolar cycloaddition of a nitrile oxide, isoxazoline opening, and fluorination by OH/F exchange.

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