Recent advances in asymmetric synthesis with CO2

来源 :中国科学:化学(英文版) | 被引量 : 0次 | 上传用户:xgimi1985
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Carbon dioxide (CO2) is an important and appealing C1 building block in chemical synthesis due to its nontoxicity,abundance,availability and sustainability.Tremendous progress has been achieved in the chemical transformation of CO2 into high valueadded organic chemicals.However,the asymmetric synthesis with CO2 to form enantioenriched molecules,especially the catalytic process,has lagged far behind.The enantioselective incorporation of CO2 into organic compounds is highly desirable,as the corresponding chiral products,such as carboxylic acids and amino acids,are common structural units in a vast array of natural products and biologically active compounds.Herein,we discuss recent progress toward the enantioselective incorporation of CO2 into organic molecules,which mainly rely on three strategies: 1) kinetic resolution or desymmetrization of epoxides with CO2 to form chiral cyclic carbonates and polycarbonates;2) nucleophilic attack of O-or N-nucleophiles to CO2 in tandem with asymmetric C-O bond formation to prepare chiral cyclic carbonates and carbamates;3) direct enantioselective nucleophilic attack of organometallic reagents to CO2 with asymmetric C-C bond formation.Finally,challenges and future outlook in this area are also presented.
其他文献
摘 要:随着全球化的迅速发展,我国与国际上其他国家交往越来越多,英语作为国际交往的通用语言显得越来越重要,作为一名高中英语教师,我们肩上的担子和责任越来越重。教授学生英语并非仅仅应对各种考试,更重要的培养学生对该语言的熟练掌握,并使之能够将其运用于日常的交际中。通过英语的讲授,希望学生能够自然而然的融入全球化的大潮,促进其全面的更好的发展。  关键词:高中英语;阅读;教学策略  中图分类号:G63
无线电通讯(Radio Communication)是指利用电磁波的辐射和传播,经过空间传送信息的通讯,按所用波段一般分为长波、中波、短波、超短波和微波。我国从60年代开始发展大容量微
中小企业在转型升级中,为市场提供绿色产品和绿色服务,需要承担风险,这同时亦是在规避风险。中小企业在转型升级中整合政府部门资源、行业管理资源、学会研究会资源,建立中小企业
会议
唐太宗 善聽劝谏
时下,一种号称“可以改变人脸相貌”的仿真人皮面具悄然兴起,已成国内影视圈、美容圈、娱乐圈以及时尚化妆舞会上的新宠。据了解,目前仿真人皮面具的市场售价在800元至13000
淮河源即淮河上游源头区域.行政区划包括信阳市商城县、罗山县、新县、光山县、浉河区、息县、淮滨县、潢川县、固始县、平桥区10个县(区)及南阳的桐柏县,其物种资源丰富,且生
会议
The challenge of the depletion of traditional fossil fuels forces researchers to develop sustainable and highly effective energy storage and conversion technolo
期刊
Ultralong organic phosphorescence (UOP) materials have roused considerable attention in the field of photonics and optoelectronics owing to the feature of long-
Luminescent radicals have received great attention recently due to their idiographic luminescent properties and potential 100% utilization efficiency of doublets