IMINIUM

作品数：9被引量：17H指数：2
导出分析报告
相关领域：理学更多>>
相关作者：肖鹤鸣更多>>
相关机构：南京理工大学更多>>
相关期刊：《Science China Chemistry》《Chinese Journal of Structural Chemistry》《分子科学学报》《International Journal of Organic Chemistry》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划高等学校学科创新引智计划更多>>
-
在结果中检索

检索结果分析

结果分析中...
共 条 记 录，以下是1-9
全选清除导出
参考文献引证文献引用追踪
视图：
排序：
One-Pot Stereoselective Synthesis of Different Fused Multicyclic Iminosugars Based on the Iminium-lon Intermediate
《Chinese Journal of Chemistry》2024年第2期142-150,共9页Song Xie Jilai Wu Likai Zhou Chao Wei Xiaoliu Li Hua Chen 
supported by the National Natural Science Foundation of China(NSFC)(21772031);the Natural Science Foundations of Hebei Province(B2019201398).
Different novel fused multicyclic iminosugars were synthesized from D-ribose tosylate,aniline and vinyl ethyl ether by one-pot three-component stereoselective[4+2]reaction at different temperatures.The iminium-ion is ...
关键词：Fused multicyclic iminosugar Aza-Diels-Alder cycloaddition Mannich reaction TETRAHYDROQUINOLINE Multicomponent reactions Enantioselectivity Cyclization 
Enantioselective total synthesis of (+)-vincamine
《Chinese Chemical Letters》2022年第4期2044-2046,共3页Fanglin Xue Hengmao Liu Rui Wang Dan Zhang Hao Song Xiao-Yu Liu Yong Qin 
National Natural Science Foundation of China (Nos. 21991114, 21921002 and 21732005) for financial support。
A catalytic asymmetric total synthesis of(+)-vincamine is presented. Key features of the synthesis include a Pd-catalyzed enantioselective decarboxylative allylation to form the C20 quaternary stereogenic center and a...
关键词：Indole alkaloid Decarboxylative allylation Stereoselective iminium reduction Natural product Total synthesis 
A minor arcutine-type C20-diterpenoid alkaloid iminium constituent of“fu zi”被引量：11
《Chinese Chemical Letters》2017年第3期588-592,共5页Xian-Hua Meng Zhi-Bo Jiang Qing-Lan Guo Jian-Gong Shi 
Financial support from the National Natural Science Foundation of China(NNSFC;Nos.81630094 and 30825044)
A rare arcutine-type C_（20）-diterpenoid alkaloid, named aconicarmicharcutinium A and obtained as hydroxide（1） and trifluoroacetate（1a）, was characterized as a minor constituent of ＂fu zi＂（the lateral roots of...
关键词：Aconitum carmichaelii Ranunculaceae Arcutine-type C_（20）-diterpenoid alkaloid iminium Aconicarmicharcutinium A 
Napelline-type C_(20)-diterpenoid alkaloid iminiums from an aqueous extract of ‘‘fu zi'': Solvent-/base-/acid-dependent transformation and equilibration between alcohol iminium and aza acetal forms被引量：13
《Chinese Chemical Letters》2016年第7期993-1003,共11页Xian-Hua Meng Zhi-Bo Jiang Cheng-Gen Zhu Qing-Lan Guo Cheng-Bo Xu Jian-Gong Shi 
Financial support from the National Natural Science Foundation of China (NNSFC; Nos. 21132009, 30825044);the National Science and Technology Project of China (Nos. 2012ZX09301002002, 2011ZX0 9307-002-01)
Three new napelline-type C20-diterpenoid alkaloids,named aconicarmichinium A and B trifluoroacetates（1 and 2） and aconicarmichinium C chloride（3）,were isolated from an aqueous extract of ＂fu zi＂,the lateral root...
关键词：Aconitum carmichaelii Ranunculaceae Napelline-type C20-diterpenoid alkaloid Aconicarmichiniums A–C Alcohol iminium and aza acetal forms of the diterpenoid alkaloid Transformation and equilibration 
The First Synthesis of Sessiline
《International Journal of Organic Chemistry》2014年第5期309-313,共5页Viktor Ilkei Kornél Faragó Zsuzsanna Sánta Miklós Dékány László Hazai Csaba Szántay Jr. Csaba Szántay Gyö rgy Kalaus 
Sessiline is an alkaloid which is recently isolated from the fruits of Acanthopanax sessiliflorus. The molecule contains two five-membered heterocyclic units joined together by an acylaminocarbinol-ether type bond. He...
关键词：Sessiline Acylaminocarbinol IMINIUM ION ALKALOID SYNTHESIS 
A new facile approach to N-alkylpyrroles from direct redox reaction of 4-hydroxy-L-proline with aldehydes
《Science China Chemistry》2012年第1期43-49,共7页ZOU ZhiQin DENG ZeJun YU XinHong ZHANG ManMan ZHAO SiHan LUO Ting YIN Xin XU HUi WANG Wei 
support from the National Natural Science Foundation of China(20972051);the Science and Technology Commission of Shanghai Municipality(08430703900 & 08431901800);the 111 Project(B07023);East China University of Science & Technology
An unprecedented acetic acid-catalyzed efficient access to N-alkylpyrroles from reaction of 4-hydroxy-L-proline with a variety of aldehydes has been achieved in good to excellent yields under mild reaction conditions.
关键词：AROMATIZATION DECARBOXYLATION ENAMINES IMINIUM redox isomerization 
Bifunctional catalysis of Morita-Baylis-Hillman (MBH) reaction with chiral primary-tertiary diamine: A non-typical MBH catalytic pathway
《Science China Chemistry》2009年第9期1300-1308,共9页ZHANG Long LUO SanZhong CHEN LiuJuan LI JiuYuan CHENG JinPei 
Supported by the National Natural Science Foundation of China (Grant Nos. 20421202, 20632060 and 20702052);Ministry of Science and Technology of China (Grant No. 2008CB617501 & 2009ZX09501-018), and the Chinese Academy of Sciences
A simple primary-tertiary diamine has been explored as a novel catalyst for the Morita-Baylis-Hillman reaction of MVK and aryl aldehydes, and moderate to good chemical yields were obtained. Detailed mechanism study in...
关键词：Morita-Baylis-Hillman REACTION primary amine ENAMINE IMINIUM ORGANOCATALYST 
Synthesis and Crystal Structure of 4-tert-Butyl-6-(4-chlorophenyl)-3,6-dihydro-2H-1,3-thiazin-2-iminium Chloride被引量：1
《Chinese Journal of Structural Chemistry》2009年第1期33-36,共4页夏林 胡艾希 曹高 王宇 叶姣 
supported by the National Project of Scientific and Technical Supporting Programs Funded by Ministry of Science & Technology of China (No 2006BAE01A01-4)
The title compound, 4-tert-butyl-6-（4-chlorophenyl）-3,6-dihydro-2H-1,3-thiazin- 2-iminium chloride （C14H18C12N2S）, has been synthesized by the reaction of 1-（4-chlorophenyl）- 4,4-dimethylpent-1-en-3-one with thi...
关键词：crystal structure SYNTHESIS 4-tert-butyl-6-（4-chlorophenyl）-3 6-dihydro- 2H- 1 3-thiazin-2-iminium chloride 
Theoretical Studies on the Mechanism of Mannich Reaction Involving Iminium Salt as Potential Mannich Reagent(4)——Use 2-Methylpropaldehyde as Pseudo-acid Component
《分子科学学报》1998年第3期36-41,共6页翟宇峰 凌月 肖鹤鸣 
以一个真实的Ｍａｎｎｉｃｈ试剂（ＣＨ３）２Ｎ＋ＣＨ２·Ｃｌ－作为研究对象．根据ＡＭ１方法的计算结果，胺、醛及伪酸在中性和酸性介质中的经典Ｍａｎｎｉｃｈ反应的关键步骤的活化能分别为３９０．０和３２１．８ｋＪ／ｍｏｌ．而...
关键词：Mannich反应 AM1法 伪酸 活化能 
全选清除导出
共1页<1>
检索报告 对象比较 聚类工具 使用帮助 返回顶部