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新型手性喹啉类催化剂的合成及其在不对称催化反应中的应用
SYNTHESIS OF NEW LIGANDS DERIVED FROM QUINOLINE AND THEIR APPLICATION TO ASYMMETRIC SYNTHESIS
【摘要】 由樟脑和喹啉衍生的手性催化剂在二乙基锌对醛的不对称加成中表现出较好的催化效果 ,产率最高可达到 94 .6 % ,光学产率 (e .e .)最高可达到 75 .9% .在Diels Alder反应中也表现出了一定的选择性 ,产率最高可达到 90 % ,e .e .最高达到 2 8.0 % .
【Abstract】 Two ligands are derived from quinoline and (+)-camphor. They show mediate enantioselectivities in the asymmetric addition of diethylzinc to aromatic aldehydes. The yield rate reaches 94.6% and e.e. is up to 75.9%. They also show some catalytic efficiency in the enantioselective Diels-Alder reactions. The yield rate is 90% and e.e. is 28%.
【关键词】 (+)-樟脑;
喹啉;
手性催化剂;
二乙基锌;
对映选择性加成;
Diels-Alder反应;
【Key words】 camphor; quinoline; chiral catalyst; diethylzinc; enantioselectivity; Diels-Alder reaction;
【Key words】 camphor; quinoline; chiral catalyst; diethylzinc; enantioselectivity; Diels-Alder reaction;
【基金】 国家自然科学基金资助项目 (2 0 172 0 0 8)
- 【文献出处】 北京师范大学学报(自然科学版) ,Journal of Beijing Normal University(Natural Science) , 编辑部邮箱 ,2004年05期
- 【分类号】621.34;O643.36
- 【被引频次】7
- 【下载频次】155