Regio- and stereochemical aspects in the functionalisation of a lithiated 2-(3-chloro-2-methyl-1-propenyl)-2-oxazoline: electrophile and temperature effects
Abstract
4,4-Dimethyl-2-(3-chloro-2-methyl-1-propenyl)-2-oxazoline has been synthesized and deprotonated with LDA in THF to give the corresponding lithiated species, which has been found to react a-regioselectively with NH4Cl and alkyl halides, and g-regioselectively with carbonyl compounds to afford aprotonated (or a-alkyl-substituted) regioisomers and vinyl epoxides, respectively. The Z diastereoselectivity of both the protonation and the alkylation reactions was usually found to increase with the temperature. Ab initio calculations, performed on both the naked lithium salt and the corresponding solvated form, support the observed regioselectivity.
Autore Pugliese
Tutti gli autori
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Rocchetti M.T. , Abbotto A. , Perna F.M. , Salomone A. , Florio S. , Capriati V.
Titolo volume/Rivista
TETRAHEDRON
Anno di pubblicazione
2015
ISSN
0040-4020
ISBN
Non Disponibile
Numero di citazioni Wos
Nessuna citazione
Ultimo Aggiornamento Citazioni
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Numero di citazioni Scopus
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0
Ultimo Aggiornamento Citazioni
28/04/2018
Settori ERC
Non Disponibile
Codici ASJC
Non Disponibile
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