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Intramolecular reaction
About: Intramolecular reaction is a research topic. Over the lifetime, 5015 publications have been published within this topic receiving 138213 citations.
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TL;DR: In the presence of SnCl 4 de nitro-1 nonadiene-1,7 and n-oxide-2 decadiene -2,8: obtention d'oxydes-3 dhexahydro-4a,5,6,7,8,8-8, 8a benzooxazines-2,3 as mentioned in this paper.
Abstract: Cycloadditions stereoselectives intramoleculaires en presence de SnCl 4 de nitro-1 nonadiene-1,7 et de nitro-2 decadiene-2,8: obtention d'oxydes-3 d'hexahydro-4a,5,6,7,8,8a benzooxazines-2,3
54 citations
TL;DR: Etude des reactions d'addition photochimique d'ethers ou sulfures d'alkyl et trimethylsilymethyl avec le phenyl-2 pyrroline-1ium and des photoadditions intramoleculaires d'ω-trimethylsilmethoxyalkyl-1, -2 ou -4 quinoleineiniums as discussed by the authors.
Abstract: Etude des reactions d'addition photochimique d'ethers ou sulfures d'alkyl et trimethylsilymethyl avec le phenyl-2 pyrroline-1ium et des photoadditions intramoleculaires d'ω-trimethylsilmethoxyalkyl-1, -2 ou -4 quinoleineiniums
54 citations
TL;DR: A facile and efficient one-pot synthesis of highly substituted pyridin-2(1H)-ones was developed via Vilsmeier-Haack reactions of readily available enaminones, 2-arylamino-3-acetyl-5,6-dihydro-4H-pyrans, and a mechanism involving sequential ring-opening, haloformylation, and intramolecular nucleophilic cyclization reactions is proposed.
Abstract: A facile and efficient one-pot synthesis of highly substituted pyridin-2(1H)-ones was developed via Vilsmeier−Haack reactions of readily available enaminones, 2-arylamino-3-acetyl-5,6-dihydro-4H-pyrans, and a mechanism involving sequential ring-opening, haloformylation, and intramolecular nucleophilic cyclization reactions is proposed.
54 citations
TL;DR: On prepare plusieurs systemes contenant deux olefines electrophiles, lune etant une cetone α-methylene, l'autre un ester α,β-insature as discussed by the authors.
Abstract: On prepare plusieurs systemes contenant deux olefines electrophiles, l'une etant une cetone α-methylene, l'autre un ester α,β-insature. L'addition de Michael de l'enolate de lithium du trimethylsiloxy-2methyl-3butene-1 sur ces systemes, suivie d'une addition intramoleculaire de Michael, conduit a la formation du systeme tricyclique a 3 noyaux en C 6 . On a pu ainsi obtenir le dimethyl-3aflavinine
54 citations
TL;DR: Two new cyclizations of ketoaldehydes have been developed using an Ir-ligand bifunctional catalyst and afforded 3,4-dihydroisocoumarins in good yields.
54 citations