Synthesis of rac-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mi>α</mml:mi></mml:math>-aryl propionaldehydes via branched-selective hydroformylation of terminal arylalkenes using water-soluble Rh-PNP catalyst
作者:Peng Gao、Miaolin Ke、Tong Ru、Guanfeng Liang、Fen-Er Chen
DOI:10.1016/j.cclet.2021.07.068
日期:2022.2
the substitute on phenyl ring of ligands. These ligands were incorporated into water-soluble rhodium-PNP complex catalysts that were used to regioselective hydroformylation of a series of terminal arylalkenes, providing efficient access to rac-α-aryl propionaldehydes in good to excellent yield (up to 97%) and branched-regioselectivity (up to 40:1 b/l ratio). Furthermore, gram-scale and diverse synthetic
这项工作详细介绍了一类水溶性 PNP 配体的制备,这些配体因配体苯环上取代物的性质而异。这些配体被掺入水溶性铑-PNP络合物催化剂中,用于一系列末端芳基烯烃的区域选择性加氢甲酰化,从而以良好至极好的收率(高达 97%)和支链-区域选择性(高达 40:1 b / l比率)。此外,克级和多样化的合成转化证明了该方法在非甾体抗炎药中的合成应用。