检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]State Key Laboratony of Organometallic Chemistry,Center for Excellence in Molecular Synthesis,Shanghai Institute of Organic Chemistry,Chinese Acodemy of Sciences(CAS),345 Lingling Road,Shanghai 200032,China [2]Deportment of Chemistry,Zhejiang Sci-Tech Univrsity,Xiasha West Higher Education District,Hangzhou,Zhejiong 310018,China
出 处:《Chinese Journal of Chemistry》2020年第10期1203-1204,共2页中国化学(英文版)
摘 要:The development of privileged chiral architectures,which are versatile for various chiral ligands or organocatalysts preparation with superior performance in a variety of organic transformations,has significantly pushed forward the advancement of asymmetric catalysis.However,only a few scaffolds could be seen as privileged chiral backbones,including BINOL-,SPINOL-,TADDOL-,quinine-,planar chiral ferrocene-based backbones and others.111 In view of the importance of novel chiral ligand skeletons in asymmetric catalysis,our group came up with a design of Si-centered spirocyclic skeletons,which could serve as a platform for new chiral ligands and organocatalysts preparation.In term of the electronegativity of Si,the longer C-Si bond(C-Si vs.C-C:co 1.87 A vs.ca 1.53 A),bigger atomic radius(Si vs.C:111 pm vs.67 pm),and vertical configuration of Si-centered spirocycles in comparison to C-centered spirocyclic scaffolds/21 the new skeletons might lead to a different reactive behavior in asymmetric catalysis(Scheme 1A).
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.66