54730-58-4Relevant academic research and scientific papers
Synthesis of Branched Alkylboronates by Copper-Catalyzed Allylic Substitution Reactions of Allylic Chlorides with 1,1-Diborylalkanes
Kim, Junghoon,Park, Sangwoo,Park, Jinyoung,Cho, Seung Hwan
, p. 1498 - 1501 (2016)
Reported herein is a copper-catalyzed SN2'-selective allylic substitution reaction using readily accessible allylic chlorides and 1,1-diborylalkanes, a reaction which proceeds with chemoselective C-B bond activation of the 1,1-diborylalkanes. I
Zirconium-catalysed enantioselective 2-aluminoethylalumination of alkenes
Dawson, Graham,Durrant, Charles A.,Kirk, George G.,Whitby, Richard J.,Jones, Raymond V.H.,Standen, Michael C.H.
, p. 2335 - 2338 (2007/10/03)
Asymmetric 2-aluminoethylalumination of mono-substituted alkenes and 2,5-dihydrofurans catalysed by (R,R)-ethylene-1,2.bis(η5-4,5,6,7-tetrahydro-1-indenyl)zirconium (R)-1,1'-binaphth-2,2'-diolate 4 and η5-cyclopentadienyl-η5-(1-neomenthyl-4,5,6,7-tetrahydroindenyl)zirconium dichloride 5. gave 30 - 99% enantiomeric excesses. The so formed organoaluminium has potential for further elaboration leading to enantiomerically enriched products.
Asymmetric Reactions of Enamines with Methyl (E)-4-Oxo-4-(2-oxo-1,3-oxazolidin-3-yl)-2-butenoate by Use of a Chiral Titanium Reagent
Hayashi, Yujiro,Otaka, Ken,Saito, Nobuo,Narasaka, Koichi
, p. 2122 - 2127 (2007/10/02)
Asymmetric Michael and cycloaddition reactions between enamines and methyl (E)-4-oxo-4-(2-oxo-1,3-oxazolidin-3-yl)-2-butenoate proceed with a chiral titanium reagent generated in situ from dichlorodiisopropoxytitanium and a tartrate-derived chiral 1,4-diol.In the presence of excess amounts of the chiral titanium reagent, good to moderate enantioselectivity is attained.The reactions are also well catalyzed even with a catalytic amount of the titanium reagent.
