Enantio- and Regioselective Conjugate Addition of Organometallic Reagents to Linear Polyconjugated Nitroolefins
作者:Matthieu Tissot、Alexandre Alexakis
DOI:10.1002/chem.201300538
日期:2013.8.19
The copper‐catalysed conjugate addition of trialkylaluminium and dialkylzinc reagents to polyconjugated nitroolefins (nitrodiene and nitroenyne derivatives) is reported. A reversed Josiphos ligand L7 allows for the selective 1,4‐ or 1,6‐addition with high enantioselectivities.
作者:KARMARKAR, SANJAY, N.、KELKAR, SHRINIWAS, L.、WADIA, MURZBAN, S.
DOI:——
日期:——
One-pot solid phase synthesis of (E)-nitroalkenes
作者:Samuel Lalthazuala Rokhum、Ghanashyam Bez
DOI:10.1016/j.tetlet.2013.07.146
日期:2013.10
An efficient one-pot protocol for the synthesis of (E)-nitroalkenes by reaction of aldehydes and nitroalkanes in the presence of polymer-bound triphenylphosphine, iodine and imidazole is described. Although the reaction works with similar efficiency with triphenylphosphine and its polymer-bound version, easy removal of the unwanted polymer-bound triphenylphosphine oxide and its recovery as triphenylphosphine provide the edge for practical application of the method. (C) 2013 Elsevier Ltd. All rights reserved.