6340-82-5Relevant articles and documents
N-Heterocyclic olefins as efficient phase-transfer catalysts for base-promoted alkylation reactions
Blümel, Marcus,Crocker, Reece D.,Harper, Jason B.,Enders, Dieter,Nguyen, Thanh V.
supporting information, p. 7958 - 7961 (2016/07/06)
N-Heterocyclic olefins (NHOs) have very recently emerged as efficient promoters for several chemical reactions due to their strong Br?nsted/Lewis basicities. Here we report the novel application of NHOs as efficient phase-transfer organocatalysts for synt
Rate enhancement with high ratio of the monoalkylated product to the dialkylated product in the alkylation of the lithium enolate of 1-tetralone with reactive alkyl halides
Goto,Akimoto,Aoki,Shindo,Koga
, p. 1529 - 1531 (2007/10/03)
The reactions of the lithium enolate of 1-tetralone with reactive alkyl halides were examined in the absence and in the presence of 3 eq of various ligands for the lithium. It is shown that the rates of the reactions are enhanced greatly in the presence a tetradentate amine (1,1,4,7,10,10-hexamethyltriethylenetetramine), and the ratio of the monoalkylated product to the dialkylated product is increased under shorter reaction times.
On the π-π interaction in the benzylation of ketones
Diez-Barra, Enrique,Merino, Sonia,Sanchez-Verdu, Prado,Torres, Jose
, p. 11437 - 11448 (2007/10/03)
The benzylation of a set of nine ketones provides enough information to establish how the ketone structure affects the existence of a π-π interaction. The presence of a phenyl moiety starting from the a-carbon atom and flexibility in cyclic ketones are st