3,3,3',3'-tetramethyl-1,1'-spirobiindane-based monophosphine ligand, intermediates thereof, preparation method and use of the same
申请人:ZHEJIANG UNIVERSITY
公开号:US11377457B2
公开(公告)日:2022-07-05
Provided are a 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based monophosphine ligand and intermediates thereof, and preparation methods and uses of the same. The monophosphine ligand is a compound represented by formula I or formula I′, or an enantiomer, a raceme or a diastereoisomer thereof, including phosphonite ligands, phosphite ligands, phosphoramidite ester ligands, phosphoric acid and phosphonic amide. The monophosphine ligand is prepared with a known 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-7,7′-diol derivative as a raw material through a scheme in which the compound presented by formula II acts as an intermediate. The present disclosure provides a novel monophosphine ligand, which can be used as a ligand in a metal-catalysed organic reactions or in directly catalyzing an organic reaction, especially as a chiral monophosphine ligand widely used in many chiral catalytic reactions such as asymmetric addition, asymmetric hydrogenation, asymmetric coupling, and asymmetric allyl alkylation, having economic practicality and industrial application prospects.
本发明提供了一种3,3,3′,3′-四甲基-1,1′-螺茚满基单膦配体及其中间体,以及其制备方法和用途。单膦配体是由式Ⅰ或式Ⅰ′代表的化合物,或其对映体、外消旋体或非对映异构体,包括亚磷酸配体、亚磷酸酯配体、亚磷酸酯配体、磷酸和膦酰胺。该单膦配体是以已知的 3,3,3′,3′-四甲基-1,1′-螺双茚满-7,7′-二醇衍生物为原料,通过以式 II 所示化合物为中间体的方案制备的。本发明提供了一种新型单膦配体,可作为配体用于金属催化的有机反应或直接催化有机反应,特别是作为手性单膦配体广泛应用于不对称加成、不对称氢化、不对称偶联、不对称烯丙基烷基化等多种手性催化反应,具有经济实用性和工业应用前景。