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Novel Reactions of Chiral Spiroborate Esters: 4. Reaction of （R）-1,1’-Bi-2-naphtholboric （S）-Proline Anhydrides with ArMgBr: ＜正＞Previously, we observed that addition of diethylzinc to benzaldehyde in the presence of chiral spiroborate ...; ZHOU, Yan SHAN, Zi-Xing (Department of Chemistry, Wuhan University, Wuhan 730072); 文献传递

Novel Reactions of Chiral Spiroborate Esters: 1. Highly Enantioselective Direct Aldol Addition Catalyzed by （R）-1,1’-Bi-2-naphtholboric （S）-Proline Anhydride: ＜正＞The asymmetric aldol addition is considered to be one of the most fundamental tools for the construction of...; ZHOU, Yan SHAN, Zi-Xing (Department of Chemistry, Wuhan University, Wuhan 730072); 文献传递

A Convenient Route to Enantiopurify 1,1’-Bi-2-naphthols: Inclusion Complexation of （1S,2S）-N-Benzyl-N,N-dimethyl-[1,3-dihydroxyl-1 -（4’-nitrophenyl）]-2-propylammonium Chloride: ＜正＞Enantiomerically pure [1,1’-bi-naphthene]-2,2’-diol （BINOL） and its derivatives possessing a C2-symmetric a...; HA, Wu-Zu SHAN, Zi-Xing (Department of Chemistry, Wuhan University, Wuhan 730072); 文献传递

Novel Reactions of Chiral Spiroborate Esters: 3. Asymmetric Michael Reaction Catalyzed by （R）-1,1’-Bi-2-naphtholboric （S）-Proline Anhydride: ＜正＞Asymmetric Michael reaction was one of the most potential methodologies for the construction of quaternary ...; LUO, Xin-Xiang SHAN, Zi-Xing ZHOU, Yan (Department of Chemistry, Wuhan University, Wuhan 730072) (Department of Chemistry and Environment Engineering, Hunan City University, Yiyang 413049); 文献传递

(R)-或(S)-1,1'-联-2-萘酚硼酸-(S)-脯氨酸酐促进的C=N键的不对称硼烷还原: 2004年; 　　2002年初,我们首次发现具有O3NB骨架的手性螺硼酸酯对前手性酮、肟醚、亚胺的不对称硼烷还原及醛的烷基化反应显示出不对称催化活性[1].在前面的论文中,我们报道了此类手性硼化合物催化的前手性酮的不对称硼烷还原反应[2,3],在优选的条件下,(R)-1,1'-联-2-萘酚硼酸-(S)-α,α-二苯基脯氨酯在THF中催化苯乙酮的硼烷还原给出92%对映体过量(R)-仲醇.作为这种研究的继续,在这里我们将报告(R)-或(S)-1,1'-联-2-萘酚硼酸-(S)-脯氨酸酐[(R,S)-1或(S,S)-1]对具C=N键的前手性化合物不对称硼烷还原的催化作用.……; 褚运波刘德军王铨单自兴

酒石酸二乙酯衍生的手性螺硼酸酯与Grignard试剂的反应: 2004年; 　　先前,我们报道了具有O3BN构架的手性螺硼酸酯催化的前手性酮、肟醚、亚胺的不对称硼烷还原反应[1-3].为了拓宽此类化合物在不对称合成中的应用范围,我们考察了手性螺硼酸酯与格氏试剂的反应.首次发现:具有O3BN构架的手性螺硼酸酯易于发生B-烃基化反应给出三配位的手性烃基硼酸酯,这就为不对称同系化反应、不对称Suzuki偶联反应等奠定了材料基础.四配位的螯合硼酸酯与格氏试剂反应的研究文献中迄今未见报道.在这篇论文中,我们将初步报告手性螺硼酸酯的这一新反应.……; 周炎单自兴

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国家自然科学基金(23372053)