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Levente Ondi

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Related publications (4)

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The organometallic approach to the functionalization of five- and six-membered nitrogen heterocycles

Levente Ondi

The present thesis work concerns the preparation and optionally site selective functionalization of five- and six-membered nitrogen heterocycles and the investigation of atropisomerism of α,o-bis(methoxymethyl)-1-phenylindole. Mono- and disubstituted 2-bro ...

EPFL2005

Metal-bearing and trifluoromethyl-substituted pyrimidines: generation and functionalization

Levente Ondi

5-Pyrimidyllithium species are fairly stable when the metal is flanked by two electron-withdrawing substituents such as trifluoromethyl and chlorine or bromine. Thus, the corresponding 5-carboxylic acids are produced in high yields from 4,5-dibromo-6-(trif ...

2006

Metalation/functionalization sequences applied to 2-bromo-3-fluoroquinolines

Levente Ondi

Mono- and disubstituted 2-bromo-3-fluoroquinolines are readily accessible. They can be converted into the 3-fluoroquinoline-2-carboxylic acids by consecutive halogen/metal permutation and into the 2-bromo-3-fluoroquinoline-4-carboxylic acids by consecutive ...

2005

Metalated 1-(p-methoxybenzyl)pyrazole: a structural chameleon

Levente Ondi

When treated with either butyllithium or lithium diisopropylamide, 1-(p-methoxybenzyl)pyrazole undergoes metalation at the exocyclic alpha-position but mutates to the 5-lithio species in the course of a few minutes or hours. Trapping the intermediates with ...

2006