Publication

Attempted and accomplished syntheses of a few monofluorinated chrysanthemic acid derivatives

Manfred Schlosser
1988
Journal Articles

Abstract

A sulfone mediated approach presumably did produce Me a-fluorochrysanthemate I but, if formed, the latter immediately underwent dehydrofluorination under the strongly basic reaction conditions. The cis- and trans-isomers of Me b- and g-fluorochysanthemates II and III were concomitantly obtained by treating 3-fluoro-2,5-dimethyl-2,4-hexadiene with N2CH2CO2Me in the presence of catalytic amts. of Rh(OAc)2. After enzymic and chromatog. sepn. the four individual components were converted to the m-phenoxybenzyl esters. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/f4af744d-6a2b-4e00-9d01-2a83a165e8ce

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Manfred Schlosser
1988
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f4af744d-6a2b-4e00-9d01-2a83a165e8ce

About this result

Related concepts (10)

Cis–trans isomerism

Cis–trans isomerism, also known as geometric isomerism or configurational isomerism, is a term used in chemistry that concerns the spatial arrangement of atoms within molecules. The prefixes "cis" and "trans" are from Latin: "this side of" and "the other side of", respectively. In the context of chemistry, cis indicates that the functional groups (substituents) are on the same side of some plane, while trans conveys that they are on opposing (transverse) sides.

Structural isomer

In chemistry, a structural isomer (or constitutional isomer in the IUPAC nomenclature) of a compound is another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them. The term metamer was formerly used for the same concept. For example, butanol , methyl propyl ether , and diethyl ether have the same molecular formula but are three distinct structural isomers. The concept applies also to polyatomic ions with the same total charge.

Isomer

In chemistry, isomers are molecules or polyatomic ions with identical molecular formula – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism refers to the existence or possibility of isomers. Isomers do not necessarily share similar chemical or physical properties. Two main forms of isomerism are structural or constitutional isomerism, in which bonds between the atoms differ; and stereoisomerism or spatial isomerism, in which the bonds are the same but the relative positions of the atoms differ.