Efficient synthesis of chiral benzofuryl β-amino alcohols via a catalytic asymmetric Henry reaction
作者:Wei Chen、Zhao-Hui Zhou、Hong-Bin Chen
DOI:10.1039/c6ob02569b
日期:——
Chiral β-amino alcohol ligands were found effective for the copper(II)-catalyzed asymmetric Henry reaction of benzofuran-2-carbaldehydes with nitromethane, which led to the formation of (S)-enriched benzofuryl β-nitro alcohols with satisfactory enantioselectivities (up to 98% ee). Using this catalytic protocol, bioactive (S)-benzofuryl β-amino alcohols could be conveniently prepared in short steps
手性β氨基醇配体小号被发现有效地用于铜(II)催化苯并呋喃-2- carbaldehydes与硝基甲烷,而导致的(形成的不对称Henry反应小号)富集的苯并呋喃基β硝基醇与对映选择性令人满意(高达98%ee)。使用该催化方案,可以在短时间内方便地制备生物活性(S)-苯并呋喃基β-氨基醇。