The present invention relates to Fluoromalonyl Halfthioesters (F-MAHTs) of formula (I), wherein R1 represents hydrogen, halogen, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl g
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(2016/06/06)
FLUORINATED DERIVATIVES OF MELDRUM'S ACID, A METHOD FOR THE PREPARATION OF THE SAME, AND THEIR USE AS A SOLVENT ADDITIVE
Disclosed are certain fluorinated derivatives of Meldrum's acid as novel compounds, preparation methods for the same, their use in Li ion batteries, Li air batteries and Li sulphur batteries as well as solvent compositions, electrolyte compositions and respective batteries containing them.
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Page/Page column 16
(2013/06/27)
An efficient method for α-monofluorination of carbonyl compounds with molecular fluorine: Use of α-hydroxymethylene substituent as directing and activating groups
Molecular fluorine efficiently reacts with α-hydroxymethylene carbonyl compounds to give α-fluoro-α-formyl compounds in a highly site-specific manner. The fluorinated compounds mostly isolated as their hemiacetals with methanol are readily deformylated just by treatment with weak bases affording α-monofluorinated carbonyl compounds. In this fluorination method, the hydroxymethylene group serves not only as a directing group but also as the activating group of carbonyl compounds for fluorination. By this method, a series of α-fluoro carbonyl compounds including esters was synthesized in high yields.
Kamaya, Hiroshi,Sato, Masayuki,Kaneko, Chikara
p. 587 - 590
(2007/10/03)
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