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Chinese Chemical Letters 2002年第9期13卷 818-819页

作者： Liang XU Min XIA jun chao cai Shanghai Institute of Materia Medica Chinese Academy of SciencesShanghai 200031

Reaction of simple dialkyl phosphites with symmetrical 1,3,5-trisubstituted hexahydro- triazines (HHTs) in the presence of benzyl chloride, afforded tertiaryaminomethylphosphonates in excellent yields. Glyphosate, a-... 详细信息

关键词： Glyphosate a-aminomethylphosphonate 1,3,5-hexahydrotriazine dialkylphosphite.

A Simple Synthesis of dl-Shikonin

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Chinese Chemical Letters 2002年第2期13卷 113-114页

作者： Qun LU Wen Hu DUAN jun chao cai Shanghai Institute of Materia Medica SIBSChinese Academy of SciencesShanghai 200031

A new facile route for the synthesis of dl-shikonin is presented. Reformatsky reaction assisted cross-coupling of 1, 4, 5, 8-tetramethoxynaphthalene-2-carbaldehyde and ethyl- bromoacetate was employed for introductio... 详细信息

关键词： Synthesis dl-shikonin Reformatsky reaction.

A new facile synthesis of shikalkin

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Chinese Chemical Letters 2008年第2期19卷 172-174页

作者： Qun Lu Hao Lun Tang Yan Qiang Shao jun chao cai Department of Bioengineering Southwest Jiaotong University Chengdu 610031 China Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

A short and convergent approach for the synthesis of shikalkin （dl-shikonin） is presented. Stobbe reaction was employed to construct the aromatic skeleton 6. This is followed by a practical method to prepare the key... 详细信息

关键词： Synthesis Shikalkin Epoxides

Synthesis of Cytotoxic Sinapyl Alcohol Derivatives fromLigularia nelumbifolia

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Chinese Chemical Letters 2002年第3期13卷 201-204页

作者： Yu ZHAO Wei LU Xiao Jiang HAO jun chao cai Hong YU DepartmentofNaturalDrugResearch CollegeofPharmaceuticalSciencesZhejiangUniversityHangzhou310031

Total synthesis of two cytotoxic natural products, nelumol A (1) and nelumal A (2), were carried out by two different paths. 4-O-Benzyl substitute analogues 26 and 27, as well as the 4-O-(2-methyl-butenyl) derivative... 详细信息

关键词： Natural products cytotoxicity total synthesis SAR pharmaceutical chemistry sinapyl alcohol derivatives.

Total Synthesis of (±)-Nocardione A and (±)-Nocardione B, Two Cdc25B Tyrosine Phosphatase Inhibitors

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Chinese Chemical Letters 2001年第10期12卷 883-886页

作者： Hai YANG Wei LU Jian Xiong BAO Haji Aker AISA jun chao cai Shanghai Institute of Materia Medica SIBSChinese Academy of SciencesShanghai 200031 Xinjiang Institute of Chemistry Chinese Academy of SciencesUrumqi 830011

Two new naphthoquinones, nocardione A and B isolated from strain P-A0248, were synthesized from naphtho[1,2-b]furan 1. The furan 1 was prepared from 5-methoxyl-1-naphthol.

关键词： Synthesis nocardione A nocardione B.

STUDIES ON THE CRINUM ALKALOIDS PART I: SYNTHESIS OF ANHYDROLYCORINE-7-ONE

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Chinese Chemical Letters 1996年第1期7卷 13-14页

作者： Hua Wu SHAO jun chao cai (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 200031) Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031

Palladium acetate catalyzed Cyclization of 1-[(6-bromo-1, 3 -benzodioxol- 5-yl)carbonyl 2, 3-dihydro-1H-indole(7a) leading to the anhydrolycorine- 7-one (1a) as the key step inanew Synthesis of Crinum alkaloids is de...

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Total Synthesis of Przewaquinone A

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Chinese Chemical Letters 1997年第3期8卷 205-206页

作者： Wen Hu DUAN jun chao cai (Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 200031) Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

Przewaquinone A, a natural orthoquinone was synthesized through several steps, the analytic data of the synthetic target compound was identical with that of przewaquinone A.

关键词： HRMS HNMR Total Synthesis of Przewaquinone A

Studies on the Crinum Alkaloids part Ⅱ~[1]: Synthes is of Crinasiadine and Trisphaeridine

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Chinese Chemical Letters 1997年第6期8卷 493-496页

作者： Hua Wu SHAO jun chao cai (Shanghai Institute of Nateria Medica, Chinese Academy of Sciences, Shanghai, 200031) Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

Crinasiadine 1 has been easily synthesized by palladium acetate catalyzed cyclization of N- (o-bromophenyl) -3, *** synthesis trisphearidine 8 with a practical type of palladium chloride catalyzed cyclization as th... 详细信息

关键词： OCH Synthesis of Crinasiadine and Trisphaeridine ppm Studies on the Crinum Alkaloids part

Advances in selective conversion of carbohydrates into 5-hydroxymethylfurfural

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Green Energy & Environment 2024年第9期9卷 1384-1406页

作者： Jie Liang Jianchun Jiang Tingting cai chao Liu jun Ye Xianhai Zeng Kui Wang Institute of Chemical Industry of Forest Products Chinese Academy of Forestry National Engineering Lab.for Biomass Chemical Utilization Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University College of Energy State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University

Converting carbohydrates into 5-hydroxymethylfurfural(5-HMF) is an attractive and promising route for value-added utilization of agricultural and forestry biomass resource. As an important platform compound, 5-HMF possesses high active furan structure with hydroxymethyl and aldehyde group for production of various bio-chemicals and materials, meanwhile, which suffer from low stability and poor yield during the industrial biorefinery process. Hence, selective production of 5-HMF with high-yield and low-cost has attracted extensive attention from scientific and industrial researchers. This review sorted and described the latest advanced research on solvent and catalyst system, as well as energy field effect for production of 5-HMF with different feedstock in detail, emphatically discussing the solvent effect and its synergistic effect with other aspects. Besides, the future prospects and challenges for production of 5-HMF from carbohydrates were also presented, which provide a profound insight into industrial 5-HMF process with economic and environmental feature.

关键词： 5-Hydroxymethylfurfural Biorefinery Solvent Selectivity Carbohydrate

Synthesis of the (3R, 9S, 10S)-Diastereoisomer of Panaxytriol,a Potent Antitumor Polyacetylene from Panax ginseng

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Chinese Chemical Letters 1999年第3期10卷 201-204页

作者： Wei LU Guang Rong ZHENG Jing Shan SHEN jun chao cai(Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai 200031) Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

(3R, 9S, 10S)-Heptadec-1-ene-4,6-diyne-3, 9, 10-triol 2, a diastereoisomer of panaxytriol 1 was synthesized using L-(+)-diethyl tartrate 5 as a chiral template, through the Cadiot-Chodkiczwicz coupling of the terminal... 详细信息

关键词： diastereoisomer panaxytriol Cadiot-Chodkiczwicz coupling