129432-79-7Relevant articles and documents
Acid-catalyzed chirality-transferring intramolecular Friedel-Crafts cyclization of α-hydroxy-α-alkenylsilanes
Sakaguchi, Kazuhiko,Kubota, Shunnichi,Akagi, Wataru,Ikeda, Naoko,Higashino, Masato,Ariyoshi, Shoma,Shinada, Tetsuro,Ohfune, Yasufumi,Nishimura, Takahiro
, p. 8635 - 8638 (2019)
Acid-catalyzed intramolecular Friedel-Crafts cyclization of optically active α-hydroxy-α-alkenylsilanes possessing a benzene ring (>99% ee) with TMSOTf as a Lewis acid gave enantio-enriched tetrahydronaphthalenes (up to 98% ee). The silyl group attached to the chiral carbon played a crucial role in the chirality transfer.
Synthesis of 1-Acyl-2-alkylcyclopropanecarboxylic Esters from 2-Alkenylphosphonium Salts
Jacoby, D.,Celerier, J. P.,Petit, H.,Lhommet, G.
, p. 301 - 304 (2007/10/02)
The one-pot reaction of allyltriphenylphosphonium bromide with the sodium salts of β-keto esters leads to the formation of alkyl 1-acyl-2-alkylcyclopropanecarboxylates.