CATALYTIC ASYMMETRIC SYNTHESIS OF NITROALDOLS USING A LANTHANUM-LITHIUM-BINOL COMPLEX: (2S,3S)-2-NITRO-5-PHENYL-1,3-PENTANEDIOL
作者:Sasai, Hiroaki、Watanabe, Shizue、Suzuki, Takeyuki、Shibasaki, Masakatsu、Havas, Fabien、Magomedov, Nabi A.、Hart, David J.
DOI:10.15227/orgsyn.078.0014
日期:——
Recoverable PEG-supported amino alcohol ligand for copper-catalyzed Enantio- and syn-selective henry reaction with nitroethanol: Sustainable and straightforward access to chiral syn-2-nitro-1,3-Diols
A poly(ethylene glycol) (PEG) supported amino alcohol has been developed as a chiral ligand to promote the copper-catalyzed asymmetric nitrolaldol reaction (Henry Reaction) with nitroethanol. The catalyst provides direct access to various syn-2-nitro-1,3-diols with high yields and stereoselectivities. The solubility of PEG moiety allows facile purification and recycling of the catalyst. The utility