Asymmetric Trapping of Pd-Containing Dipoles by Photogenerated Ketenes

来源 :中国化学会第十六届全国有机合成化学学术研讨会 | 被引量 : 0次 | 上传用户:CYQWWL
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
  Transition metal-catalyzed cycloaddition reactions have been determined to be a powerful tool for constructing valuable heterocyclic skeletons.In particular,a variety of dipolar cycloadditions of in situ generated,transition metal-containing dipolar species have been established by reacting with a series prepared dipolephiles.In the past years,we are focused on the development of Pd-,Ir-,Fe-and Cu-catalyzed novel dipolar cycloadditions by exploiting new reactivity,new reagent and new ligand.
其他文献
刺激响应有机发光材料(Stimuli-responslve organic luminescent materials)是指在外界刺激(例如,力、光、电、热、pH等)作用下,有机发光材料的发光性能(发光强度和/或发光颜色等)产生明显改变的一类智能材料。
The tautomeric equilibrium of dialkyl H-phosphonates between their phosphite form and phosphonate form,namely the tricoordinated phosphorus form and the tetracoordinated phosphorus form(Scheme l),make
Ni-catalyzed reductive cross-coupling of alkyl halides with other electrophiles has provided facile entries to the construction C–C bonds.These reactions feature excellent functional group tolerance a
简单烯烃的高选择性、高附加值化的氧化官能团化反应是绿色合成化学的热点与前沿研究领域之一。[1]在钯-氧气催化体系中,如何实现在烯烃分子烯丙位上高选择性引入功能性官能团具有一定的挑战性。
The knowledge on the formation,structure,and reactivity of low-coordinate 3d metal species is important for developing transition-metal-catalyzed transformations and also for understanding the mysteri
不对称催化氢化具有高效、绿色和易于放大等优点,被认为是最具工业化应用前景的手性合成技术。该领域的研究进展对手性药物、手性香料和手性材料等行业的发展具有重要意义和巨大影响,美国科学家Knowles和日本科学家Noyori曾因此获得2001年诺贝尔化学奖。
环氧烷是一种重要的合成子,它既可以参与有机合成反应,也可以参与高分子合成反应。比如,环氧烷可以与C02发生环加成反应,生成各种环碳酸酯;环氧烷也可以与异氰酸酯等反应,生成噁唑烷酮;环氧烷还能发生开环反应,生成各种醇。
A direct nickel-catalyzed,high atom-and step-economical reaction of cyanohydrins with aldehydes or ketones via an unprecedented “cyano-borrowing reaction” has been developed.
α,β-Unsaturated compounds are of intensive interest as they are highly valuable intermediates for the synthesis of numerous fine chemicals and pharmaceuticals.1-2 On the other side,organofluorine comp
Recently,substitution of the C=C functionality with the isosteric and isoelectronic B-N moiety has emerged as a powerful way to expand the family of polycyclic aromatic hydrocarbons(PAHs).