126435-89-0Relevant academic research and scientific papers
Enantioselective C-C Bond Formation during the Oxidation of 5-Phenylpent-2-enyl Carboxylates with Hypervalent Iodine(III)
Shimogaki, Mio,Fujita, Morifumi,Sugimura, Takashi
, p. 11836 - 11840 (2017/11/27)
The oxidation of (5-acyloxypent-3-enyl)benzene with hypervalent iodine(III) afforded 2-oxy-1-(oxymethyl)tetrahydronaphthalene under metal-free conditions. The acyloxy group may nucleophilically participate in the oxidative cyclization. A lactate-based chi
Disubstituted Z-allylic esters by Wittig-Schlosser reaction using methylenetriphenylphosphorane
Hodgson, David M.,Arif, Tanzeel
supporting information; experimental part, p. 2685 - 2687 (2011/04/25)
β-Lithiooxyphosphonium ylides, generated in situ from aldehydes and methylenetriphenylphosphorane, react with halomethyl esters to form disubstituted allylic esters in good yields and with high Z-selectivity.
Iridium-catalysed allylic substitution: Stereochemical aspects and isolation of IrIII complexes related to the catalytic cycle
Bartels, Bjoern,Garcia-Yebra, Cristina,Rominger, Frank,Helmchen, Guenter
, p. 2569 - 2586 (2007/10/03)
Ir-catalysed allylic alkylations of enantiomerically enriched monosubstituted allylic acetates proceed with up to 87% retention of configuration using P(OPh)3 as ligand. High retention enantioselectivity of up to 86% ee in asymmetric allylic alkylations of achiral or racemic substrates is achieved with monodentate phosphorus amidites as ligands. Lithium N-tosylbenzylamide was identified as a suitable nucleophile for allylic aminations. Of particular importance is the use of lithium chloride as an additive, generally leading to increased enantioselectivities. Two (π-allyl)IrIII complexes were characterised by X-ray crystal structure analysis and spectroscopic data.
Stereoselectivity and regioselectivity in the segment-coupling prins cyclization
Jaber,Mitsui,Rychnovsky
, p. 4679 - 4686 (2007/10/03)
The scope of the segment-coupling Prins cyclization has been investigated. The method is outlined in Scheme 1 and involves esterification of a homoallylic alcohol.(1), reductive acetylation to give the α-acetoxy ether (3), and cyclization on treatment wit
Allyl- and propargylchromium reagents generated by a chromium(III) ate-type reagent as a reductant and their reactions with electrophiles
Hojo,Sakuragi,Okabe,Hosomi
, p. 357 - 358 (2007/10/03)
A chromium ate-type reagent 'Bu5CrLi2' reacts with allylic and propargylic phosphates to generate the corresponding allyl- and propargylchromium (propargyl = prop-2-ynyl) reagents which further react with a variety of electrophiles such as aldehydes, ketones, imines, and isocyanates to afford the corresponding adducts in high yields.
