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Synthesis of Peptoid Nucleic Acid with Thymine as Nucleic Base

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Chinese Chemical Letters 2000年第9期11卷 771-774页

作者： Yun WU Jie Cheng XU shanghai institute of organic chemistry, Chinese Academy of Sciences, shanghai 200032 Chinese Acad Sci Shanghai Inst Organ Chem Shanghai 200032 Peoples R China

The synthesis of peptoid nucleic acid bearing thymine as nucleobase has been achieved. This modified oligonucleotide showed good hybridization with DNA.

关键词： peptoid peptide nucleic acid solid phase synthesis thymine

LIPASE－CATAL　YZED　DOUBLE　KINETIC　RESOLUTION　OF　DL－2，4－DIMETHYL－1，5－PENTANEDIOL：A　USEFUL　SYNTHON　IN　NATURAL　PRODUCT　SYNTHESIS

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Chinese Chemical Letters 1996年第2期7卷 129-130页

作者： Jian Wen FANG Zu Yi LI(shanghai institute of organic of organic chemistry,Academ Sinica 354 Fenglin Lu, shanghai 200032) ACAD SINICA SHANGHAI INST ORGAN CHEMSHANGHAI 200032PEOPLES R CHINA

An importment chiral synthon (-)-2,4-dimethyl-1,5-pentanediol and its diester and monoester were obtained by lipase-catalyzed double kinetic resolution.

关键词： DL OF RESOLUTION KINETIC DOUBLE CATAL DIMETHYL

Synthesis and Diastereomeric Analysis of Uridine 2’,3’-Cyclic Phosphite

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Chinese Chemical Letters 1997年第3期8卷 199-202页

作者： Yun DING Yi Bing ZHANG Yao Quan CHEN (Laboratory of Bio-organic & Natural Products chemistry shanghai institute of organic chemistry Chinese Academy of Sciences, shanghai 200032) CHINESE ACAD SCI SHANGHAI INST ORGAN CHEMLAB BIOORGAN & NAT PROD CHEMSHANGHAI 200032PEOPLES R CHINA

Uridine 2’,3’-cyclic phosphite has been synthesized and the diastereomers were analysed by 2D NMR technique to assign the configuration

关键词： Chen Synthesis and Diastereomeric Analysis of Uridine 2 Cyclic Phosphite

A facile synthesis of per (poly )fluoroalkyl substituted α-amino acid derivatives

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Chinese Journal of chemistry 1997年第3期15卷 286-288页

作者： HU, Qiao-Sheng HU, Chang-MingLaboratory of Organofluorine chemistry, shanghai institute of organic chemistry, Chinese Academy of Sciences, shanghai 200032, China Laboratory of Organofluorine chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China [*]Laboratory of Organofluorine chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

Initiated by CrCl3/Fe redox couple, per(poly)fluoroalkyl iodides added to methyl a-acetylamino acrylate, giving B-per(poly)fluoroalkyl a-amino acid derivatives in good yields.

关键词： Per(poly)fluoroalkyl iodides a-acetylaminoacrylate chromic chloride/iron

The Synthesis of Cyclotriphosphazene Liquid Crystals

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Chinese Chemical Letters 1998年第8期9卷 727-729页

作者： Yong Gang YANG Jian Xun WEN(shanghai institute of organic chemistry, Chinese Academy of Sciences, shanghai 200032) Chinese Acad Sci Shanghai Inst Organ Chem Shanghai 200032 Peoples R China

Four functional cyclotriphosphazene liquid crystals have been synthesized. Their phase transition temperatures have also been measured by polarizing textural observation and confirming by DSC.

关键词： cyclotriphosphazene liquid crystal synthesis

Synthesis and Characterization of Chiral Binuclear Organolanthanide and Yttrium Alkoxides Containing Cyclopentudienyl Ligand

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Chinese Chemical Letters 1998年第8期9卷 785-787页

作者： Chang Tao QIAN Tai Sheng HUANG (Laboratory of Organometallic chemistry, shanghai institute of organic chemistry, ChineseAcademy of Sciences, 354 Fenglin Lu, shanghai 200032) Lab. of Organometallic chemistry Shanghai Inst. of Organic Chemistry Chinese Academy of Sciences 354 Fenglin Lu Shanghai 200032 China

Three new chiral binuclear organolanthanide alkoxides containing cyclopentadienyl ligand have been synthesised by the reaction of Cp3Ln (Cp=C5H5; Ln=Yb, Y, Dy ) with 0.5equimolar chiral diol in THF (tetrahydrofuran) a... 详细信息

关键词： chiral organolanthanide alkoxides cyclopentadienyl

A novel alkyldehydroxylation of phenols Palladium-catalyzed reaction of phenyl fluoroalkanesulfonates with organoaluminum reagents

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Acta Chimica Sinica English Edition 1989年第1期7卷 94-96页

作者： CHEN Qing-Yun HE Ya-Bo shanghai institute of organic chemistry,Academia Sinica,shanghai shanghai institute of organic chemistry Academia Sinica Shanghai

Recently we and others have reported that palladium could insert into the carbon-oxygen bond of phenyl fluoroalkanesulfonates,ArOSOR（1）,which could be convenientlyprepared from ***,alkenylation and alkynylation of phenols could be accom-plished via the Heck reaction of 1,and moreover,some procedures for alkylation of phenolshave been provided by the cross-coupling reaction of 1 with organozincs and organotins,In order to extend the scope of the coupling reaction of 1,we are attracted by the palladium-

关键词： Ph SO A novel alkyldehydroxylation of phenols Palladium-catalyzed reaction of phenyl fluoroalkanesulfonates with organoaluminum reagents

Michael Addition of Nitroalkanes to CF_3CCl_2COCH=CHPh: A Facile Route to Fluorine-containing γ-Nitro Ketones

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Chinese Chemical Letters 1997年第8期8卷 665-668页

作者： Qiao Sheng HU and Chang Ming HU(Laboratory of Organofluorine chemistry shanghai institute of organic chemistry, Chinese Academy of Sciences, 354 Fengling Lu, shanghai, 200032) CHINESE ACAD SCI SHANGHAI INST ORGAN CHEMLAB ORGANOFLUORINE CHEMSHANGHAI 200032PEOPLES R CHINA

Nitroalkanes react smoothly with CF_3CCl_2COCH=CHPh via Michael addition in the presence of inorganic bases such as KF/Al2O3 or K2CO3, giving fluorinecontaining γ-nitro ketones in good yields.

关键词： CF CO Michael Addition of Nitroalkanes to CF3CCl2COCH=CHPh ppm Nitro Ketones Michael Addition of Nitroalkanes to CF3CCl2COCH A Facile Route to Fluorine-containing

The reaction of *** radical addition to olefins initiated by single electron oxidation of perfluoroalkanesulfinate

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Chinese Journal of chemistry 1990年第4期8卷 362-369页

作者： HUANG, Wei-Yuan XIE, Yuan shanghai institute of organic chemistry, Academia Sinica, shanghai 200032 shanghai institute of organic chemistry Academia Sinica Shanghai 200032

Sodium perfluoroalkanesulfinates [Cl(CF_2)n SO_2 Na (1), a, n=4; b, n=6; c, n=8] with the reduction potentials about 0.95-1.00V could be oxidized readily with various oxidizing agents such as Mn (OAc)_3·2H_2O, Ce(SO_4)_2, HgSO_4 and Co_2O_3 to generate perfluoroalkyl radicals which added to the olefins RCH=CHR′to give two kinds of adducts, namely RCH (R_f) CHXR′(3, X=H; 4, X=OAc), with good yields depending upon the solvent system used. Different oxidizing agents showed slight variation on the yields of the adducts. The reaction time could be greatly shortened at higher temperature. Thus, this reaction provides a new way for introducing a perfluoroalkyl group into olefinic compounds.

关键词： CF ppm CI The reaction of perfluoroalkanesulfinatesIV.Perfluoroalkyl radical addition to olefins initiated by single electron oxidation of perfluoroalkanesulfinate