CARBANION

作品数：14被引量：10H指数：2
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Nucleophilic trifluoromethylation with CF_(3)H/LiHMDS: probing the nucleophilic reactivity of LiCF_(3) species
《Science China Chemistry》2025年第2期505-512,共8页Yangfan Liu Xiu Wang Chuanfa Ni Jinbo Hu 
support of this work by the National Key Research and Development Program of China(2021YFF0701700);the National Natural Science Foundation of China(22271299,22261132514 and 22301308);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB0590000);the Natural Science Foundation of Shandong Province(ZR2021LFG006 and ZR2023LFG003);the Shandong Dongyue Polymer Material Co.Ltd.is gratefully acknowledged。
The nucleophilic trifluoromethylation involving trifluoromethyllithium(LiCF_(3))species has been an open question since Haszeldine attempted to prepare LiCF_(3) in 1949.Indeed,LiCF_(3) has been used for electrophilic ...
关键词：nucleophilic trifluoromethylation trifluoromethy llithium fluorinated carbanion negative fluorine effect fluorinated carbenoid 
Base-Promoted Catalyst-Free Regioselective Hydroacylation of Styrenes with Hydrazones via Carbanion Addition
《CCS Chemistry》2022年第10期3254-3263,共10页Pan Pan Yatao Lang Dawei Cao Huiying Zeng Chao-Jun Li 
from the National Natural Science Foundation of China(grant no.21971093);the International Joint Research Centre for Green Catalysis and Synthesis(grant no.2016B01017),and the 111 project.
Wereport a base-promoted catalyst-free protocol for the highly regioselective hydroacylation of styrenes with hydrazones derived from naturally abundant aldehydes.This protocolgeneratedlinearketoneswith goodfunctional...
关键词：CATALYST-FREE regioselective hydroacylation hydrazone carbanion addition base-promoted 
Construction of 3-Azabicyclo[3.1.0]hexane Backbone by the Reaction of Allenes with Allylamines via Tandem Michael Addition and Copper-Mediated Oxidative Carbanion Cyclization被引量：2
《Chinese Journal of Chemistry》2021年第3期666-670,共5页Hui Xu Teng Han Xiaoyan Luo Wei-Ping Deng 
the Shanghai Comittee of Science and Technology(No.17ZR1407600)。
Main observation and conclusion A facile synthetic method for the construction of 3-azabicyclo[3.1.0]hexane in the presence of copper catalyst system was developed.The reaction proceeds through Michael addition of all...
关键词：Oxidative coupling ALLENES ALLYLAMINE 3-Azabicyclo[3 1 0]hexane Miachel addition 
Hetero diacylation of 1,1-diborylalkanes:Practical synthesis of 1,3-diketones
《Chinese Chemical Letters》2020年第7期1911-1913,共3页Liang-Hua Zou Min Fan Lu Wang Chao Liu 
the National Natural Science Foundation of China(Nos.91745110,21673261,21603245,21703265,21872156,21802150,21773210 and 21603190);Natural Science Foundation of Jiangsu Province(Nos.BK20190002,BK20181194 and BK20180247);Support from the Young Elite Scientist Sponsorship Program by CAST(No.YESS20170217);the Youth Innovation Promotion Association CAS(No.2018458)。
An efficient protocol for the synthesis of asymmetric 1,3-diketones was reported through diacylation of1,1-diborylalkanes using two different acyl sources.In this transfo rmation,an enolate boron species was initially...
关键词：1 1-Diborylalkanes Diacylation Enolate boron species Boron-stabilized carbanion intermediates 1 3-Diketones 
CsOH catalyzed aerobic oxidative synthesis of p-quinols from multi-alkyl phenols under mild conditions
《Science China Chemistry》2015年第8期1334-1339,共6页Yu-Feng Liang Kai Wu Zhiqing Liu Xiaoyang Wang Yujie Liang Chenjiang Liu Ning Jiao 
supported by the National Natural Science Foundation of China(21325206,21172006);the Key Laboratory of Oil and Gas Fine Chemicals(XJDX0908-2013-2)
p-Quinols are ubiquitous structural motifs of various natural products and pharmaceutical compounds,and versatile building blocks in synthetic chemistry.The reported methods for the synthesis of p-quinol require stoic...
关键词：p-quinol molecular oxygen de-aromatization CARBANION cesium hydroxide 
Synthesis of 6-(Bromomethyl)-4-methoxy-5,6,7,8-tetrahydropyrido-[3,2-d]pyrimidin-2-ol from 6-Methylpyrimidine-2,4-diol
《Chemical Research in Chinese Universities》2012年第1期57-60,共4页LIU Wei-dong2, DENG Xi-ling2, ZHANG Zhi-li2, WANG Xiao-wei2 and LIU Jun-yi1,2 1. State Key Laboratory of Natural and Biomimetic Drug, 2. Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, P. R. China 
Supported by the National Natural Science Foundation of China(Nos.20672008, 20972011);the PhD Foundation of the Ministry of Education of China
6-（Bromomethyl）-4-methoxy-5,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-2-ol（compound 9） was synthe sized from 6-methylpyrimidine-2,4-diol（compound 1） through the crucial steps of 6-methyl alkylating and intramo lecu...
关键词：HETEROCYCLE CARBANION ALKYLATION Reduction CYCLIZATION 
Generation and α-hydroxyalkylation of a novel 3-piperidinol N-α-carbanion intermediate被引量：3
《Science China Chemistry》2009年第10期1631-1638,共8页ZHENG Xiao CHEN Guo RUAN YuanPing HUANG PeiQiang 
Supported by the National Natural Science Foundation of China (Grant No. 20832005)
The (S)-sulfide 6 has been synthesized as a synthetic equivalent of novel 3-piperidinol N-α-carbanion B via deprotonation and lithium naphthanelide (LN)-mediated reductive lithiation. The reaction of the 3-piperidino...
关键词：sulfide N-α-carbanion lithium-naphthanelide reductive LITHIATION CARBONYL compounds α-hydroxyalkylation DIASTEREOSELECTIVITY 
Nucleophilic Substitution Reaction of p-Dinitrobenzene by a Carbanion: Evidence for Electron Transfer Mechanism
《Chinese Journal of Chemistry》2002年第11期1453-1456,1135,共4页刘有成 张凯东 吕建明 吴隆民 刘中立 
theNationalNaturalScienceFoundationofChina (Nos.2 9832 0 40and 2 0 0 72 0 36 )andtheSpecialFundforDoc toralProgramfromtheMinistryofEducationofChina
On the basis of investigation of cyclic voltammetry, EPR spectroscopy and competition experiments, the nucleophilic substitution reaction of p- dinitrobenzene with the sodium salt of ethyl α-cyanoacetate carbanion in...
关键词：single electron transfer p-dinitrobenzene radical anion α-cyanoacetate carbanion retarding effect 
(Et_4N)_2[Fe_4(SPh)_10] Stimulated S_(RN)1 Reactions of α-Bromonaphth-alene with Pinacolone Carbanion被引量：2
《Chinese Chemical Letters》2001年第2期121-124,共4页Zhao ZHANG Ya Ling GONG Yu WANG Zhao Bin CHEN Pei Lan WANG 
the Natural Science Fund of Shanxi Province.
The (Et_4N)_2[Fe_4(SPh)_10] stimulated reaction of α-bromonaphthalene with pinacolone carbanion in DMSO leads to the formation of 1-(α-naphthyl)pinacolone. The reaction is suggested in terms of SRN1 mechanism of ar...
关键词：SRN1 reaction naphthalene derivative pinacolone carbanion nucleophilic substitution. 
Ab Initio Studies on MCH_2(OH) and CH_3OM(M=H, -, Li, Na)
《Chemical Research in Chinese Universities》2000年第2期136-140,共5页WANG Yigui SUN Changjun BIAN Wensheng  DENG Conghao 
Supported by the National Natural Science Foundation of China(No. 29503019,29773025) and the Chinese Uni-versity Doctoral Foun
MCH 2(OH) and CH 3OM(M=-, Li, Na) were calculated by means of ab initio method at the MP2/631+G* level. The results show that the metals have the ability to localize charge on O in CH 3OM(M= Li, Na). MCH 2(OH)(M=L...
关键词：CARBANION CARBENOID ETHER LITHIUM SODIUM 
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