86100-15-4Relevant academic research and scientific papers
Metal-Free Three-Component Oxyalkynylation of Alkenes
Li, Yangshan,Lu, Ran,Sun, Shutao,Liu, Lei
supporting information, p. 6836 - 6839 (2018/10/25)
An unprecedented (NH4)2S2O8 mediated metal-free three-component alkene oxyalkynylation using H2O or alcohol as oxygenation agent is described. Mechanistic studies suggested that the reversed regiosele
Gold-catalyzed tandem cycloisomerization-hydroalkoxylation of homopropargylic alcohols
Belting, Volker,Krause, Norbert
, p. 4489 - 4492 (2007/10/03)
The tandem cycloisomerization-hydroalkoxylation of various homopropargylic alcohols in the presence of an alcohol and a dual catalyst system, consisting of a gold precatalyst and a Bronsted acid, provides an efficient route to tetrahydrofuranyl ethers und
Nickel-catalyzed conjugate addition of arylboron reagents to α,β-unsaturated carbonyl compounds with the aid of a catalytic amount of an alkyne
Shirakawa, Eiji,Yasuhara, Yuichi,Hayashi, Tamio
, p. 768 - 769 (2007/10/03)
Alkynes in combination with a catalytic amount of a nickel complex were found to catalyze the conjugate addition of arylboron reagents to α,β-unsaturated carbonyl compounds, where use of an optically active alkyne induces the asymmetric addition. Copyright
Electronic effect on the regioselectivity in the ring opening of para-substituted phenyloxiranes by acetylides
Shindo, Mitsuru,Sugioka, Tomoyuki,Shishido, Kozo
, p. 9265 - 9268 (2007/10/03)
The electronic effect on the regioselectivity in the alkynylation of phenyloxiranes was investigated using three kinds of metal acetylides. BF 3 mediated lithium acetylide provided either the α- or β-alkynylated products by controlling the effe
Rearrangement of lithioalkynyltriorganoborates derived from propargylic acetals: A one pot synthesis of homopropargylic alcohols
Carrie,Carrie, Daniel,Carboni,Carboni, Bertrand,Vaultier,Vaultier, Michel
, p. 8209 - 8212 (2007/10/02)
Lithioalkynyltriorganoborates generated from the corresponding propargylic acetals rearrange in the presence of boron trichloride thus opening an efficient and convenient route to a variety of homopropargylic alcohols free of the corresponding allenic isomers. Unexpectedly, the parent derivative leads exclusively to the allenic alcohol.
Stereo- and regioselective metal salt-catalyzed alkynylation of 1,2-epoxides
Chini,Crotti,Favero,Macchia
, p. 6617 - 6620 (2007/10/02)
A simple, efficient, stereoselective, and highly regioselective method for the synthesis of β-hydroxyacetylenes by the direct opening of 1,2-epoxides with lithium acetylides in anhydrous THF, in the presence of metal salts, is described. This new method a
AN EFFICIENT METHOD FOR THE ALKYNYLATION OF OXIRANES USING ALKYNYL BORANES
Yamaguchi, Masahiko,Hirao, Ichiro
, p. 391 - 394 (2007/10/02)
Alkynyl boranes, generated in situ from lithium acetylides and boron trifluoride etherate, were found to react with oxiranes under mild reaction conditions to afford β-hydroxyacetylenes in high yields.
