THE RADICAL NUCLEOPHILIC SUBSTITUTION REACTION OF HETEROCYCLIC KETENE AMINALS WITH 2,4-DINITROHALOBENZENES
Wen Yi ZHAO Zhi Tang HUANG Institute of Chemistry;Academia Sinica Beijing;100080

..............page:501-504

REGIOSELECTIVE OXIDATION OF KETONE BY AN OXIDATIVE REAGENT SYSTEM KH/O₂/18-CROWN-6/THF:APPLICATION TO SYNTHESIS OF VARIOUS LACTONES
Wei Shan ZHOU Biao JIANG Shanghai Institute of Organic Chemistry;Chinese Academy of Sciences;345 Lingling Lu;Shanghai 200032.Xin Fu PAN Department of Chemistry;Lanzhou University;Lanzhou 730000.

..............page:505-508

A NOVEL STEROID FROM EICHHORNIA CRASSIPES
Hou Ming WU Hui Qiang ZHOU Sheng yu HUANG Kan MA Xia Fei LAO State Key Laboratory of Bio-organic and Natural Products Chemistry Shanghai Institute of Organic Chemistry;Academia Sinica 345 LingLing Lu;Shanghai 200032Shu Wen YU Wen Hao SUN Zi Wen YU Shanghai Institute of Plant Physiology Academia Sinica;Shanghai 200032

..............page:509-512

SYNTHESIS OF 6,7-METHYLENEDIOXY-3-THIA-1(2H,4H)ACRIDONE AND THE RELATED THIA-ACRIDINE-PUSED HETEROCYCLIC COMPOUNDS
Ji Rui HOU Jin Jun WANG Gui Ji JIANG Jing Shu LI

..............page:513-514

DARZENS REACTION OF 2-CHLOROMETHYLBENZOXALINE
Chao Guo YAN Wen Xing LU Ji Tao WU

..............page:515-516

THE APPLICATON OF ULTRASOUND TO THE DI-ALKYLATION AND CYCLO-DI-ALKYLATION OF ETHYL CYANOACETATE UNDER SOLID-LIQUID PHASE TRANSFER CONDITIONS
Qi Jun LIN Cheng Ru ZHANG Department of Chemistry;Shandong University;Jinan;250100.Yong Ming ZHANG Binzhou Medical College;Binzhou;Shandong.Wen Zhen SONG Qin QIU Experimental Centre;Shandong University;Jinan;250100.

..............page:517-520

SYNTHESIS OF 4,5-SECOCHOLESTANE AND 4-METHYL-4,5-SECOCHOLESTANE
Jian Guo MA Tong Shuang LI Yu Lin LI Laboratory of Applied Organic Chemistry;Lanzhou University;Lanzhou 730000

..............page:521-522

STEREOSELECTIVE SYNTHESIS OF ACETYLATED GLYCOPYRANOSYL AZIDES
Jian Xin YU Yu Ting LIU

..............page:523-524

SYNTHESIS OF 4,6-DISUBSTITUTED 5-THIOXO-1,2,4-TRIAZIN-3-ONE FROM BENZOTHIOFORMANILIDE
Zhong E LU Tian Lin XU Xiao Dong SHI Department of Chemistry;Suzhou University;Suzhou;215006

..............page:525-526

DIELS-ALDER REACTIONS OF FURAN WITH DIENOPHILES CATALYZED BY YbCl₃ Zi Niu ZHOU and Qi SHEN
Changchun Institute of Applied Chemistry;Academia Sinica;Changchun 130022

..............page:527-528

THE SYNTHESIS AND CRYSTAL STRUCTURE OF CIS-BIS(1,10-PHENANTHROLINE)GLYCINECOBALT(Ⅲ)
Bao Hui YE Tian Xian ZENG Liang Nian JI Hong Hui ZHUANG

..............page:529-530

STUDIES ON 1,2,3-DIAZAPHOSPHOLE Ⅳ REACTION OF 1,2,3-DIAZAPHOSPHOLE WITH ALCOHOLS
Bao Zhong CAI Lun Tzu LIU Ru Yu CHEN Institute of Elemento-Organic Chemistry;Nankai University;Tianjin 300071

..............page:531-534

THE REGIOSPECIFICITY OF INTRAMOLECULAR N-3-BUTENYL NITRONE CYCLOADDITION
Si Yu MA Xiao Yuan FU Department of Chemistry;Beijing Normal University;Beijing 100875

..............page:535-536

AN IHSECTICIDAL SESQUITERPENE FROM CELASTRUS ANGULATUS
Mao Tian Wang Hai Lin Qin Yan Zi Li Henan Institute of Chemistry;Zhengzhou;450003Man Kong Institute of Materia Medica.Chinese Academy of Medical Seiences;Beijing;100050

..............page:537-538

TEUPERNIN A,B AND C,THREE ENT-CLERODANE DITERPENOIDS FROM TEUCRIUM PERNYI FRANCH
Di An SUN Guang Yi LI Institute of Materia Medica;Chinese Academy of Medical Sciences;Beijing 100050

..............page:539-542

A NEW SESTERTERPENE FROM THE SPONGE PHYLLOSPONGIA FOLIASCENS
Xiong FU Long Mei ZENG Jing Yu SU Chemistry Department;Zhongshan University;Guangzhou;510275Francis J.SCHMITZ Department of Chemistry;University of Oklahoma;Norman;Oklahoma 73019—0370;U.S.A.

..............page:543-544

THYMINE BONDED-STATIONARY PHASE FOR HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
Tao ZHU Qin Wei WANG Lian Zhu SHEN Cheng Xun LU Yi Liang SUN

..............page:545-548

THE OBSERVATION OF ENHANCED RAMAN SCATTERING OF GASEOUS MOLECULES BY Hg MICRODROPLETS
Fa Ping ZHONG Han Xi YANG Zhong SHI Chuan Sin CHA Zhi Shan Xu Nian XIAO Rong Sen SHEN

..............page:549-550

THE RAPID DETERMINATION FOR BENZO(a)PYRENE WITH SYNCHRONOUS FLUORESCENCE SPECTROSCOPY SCANNING IN DEFINED RANGE OF DUAL—WAVELENGTHS
Wei Xi YAO Wen Xian CUI Tao XIONG Xiao Bai XU Research Center for Eco-Environmental Sciences;Chinese Academy of Sciences;Beijing 100083

..............page:551-552

SYNTHESIS AND STRUCTURE OF TETRANUCLEAR MOLYBDENUM CLUSTER COMPOUND[Mo₄S₄（μ-O₂CC₆H₅）₂（dtp）₄]
Hong Hui ZHUANG Ding Ming WU Jian Quan HUANG Jin Ling HUANG Fuzhou Laboratory of Structure Chemistry and Fujian Institute of Research on the Structure of Matter;Chinese Academy of Sciences;Fuzhou 350002

..............page:553-554

CRYSTAL STRUCTURE OF DI（α-HYDROXYISOBUTYRATE）DIAQUO NEODYMIUM NITRATE Nd（C₄H₇O₃）₂NO₃2H₂O
Cheng XU Zhao Ai NI Department of Chemistry;Hangzhou University;Hangzhou 310028

..............page:555-556

CRYSTAL STRUCTURE OF FIVE-COORDINATE ZIRCONOCENE COMPLEX （MeCp）₂ZrC1(α-C₁₀H₇COO)
Zhi Qiang WANG Shi Wei LU He Fu GUO Ning Hai HU

..............page:557-560

THE STUDY OF COPOLYMERIZATION OF p-DIETHYNYLBENZENE WITH OTHER ACETYLENIC DERIVATIVES
Yin Kui LI Zhao Hui CHEN

..............page:561-564

PHOTOSENSITIVITY OF CERIC ION INITIATED METHYL ACRYLATE POLYMERIZATION
Jian Hua DONG Jian Qing YANG Kun Yuan QIU Xin De FENG Department of Chemistry;Peking University;Beijing;100871

..............page:565-566

SOAPLESS EMULSION COPOLYMERIZATION IN THE PRESENCE OF BARIUM SULFATE POWDER
Li CHEN Department of Chemistry;Xiamen University Xiamen 361005

..............page:567-568

THE STUDY ON TRE KINETICS AND MECHANISM OF THE REACTIONS OF METAL IONS WITH PnAO
Bin SONG Qi Yan ZHANG Yun Ti CHEN Department of Chemistry;Nankai University;Tianjin;300071R.K.MURMANN Department of Chemistry;University of Missouri;Columbia;65211;USA Biotechnology reseach center;Zhongshan University;Guangzhou;510275

..............page:569-570

A STUDY ON THE INTERACTION BETWEEN CH₃OH AND H₂CO MOLECULES IN TERMS OF THE PROPERTIES OF CHARGE DENSITY DISTRIBUTIONS
Wei Liang CAO Jing Chang ZHANG Beijing Institute of Chemical Technology Beijing China 100029Xiao Yuan FU Beijing Normal University Beijing China 100875

..............page:571-574

COMPACT COIL OF LACQUER POLYSACCARIDE:FURTHER EVIDENCE
Xing Ping QIU Li Na ZHANG YU Min DU Bao Gong QIAN Zai Min LU

..............page:575-576

THE RETICAL STUDIES ON THE THERMOLYSIS OF THIETANE
Guang Ju CHEN Xiao Yuan FU Ao Qing TANG Chemistry Department;Beijing Normal University;Beijing 100875

..............page:577-578

CATALYTIC PERFORMANCE OF ETHYLENE HYDROFORMYLATION OVER[H_XRu₃（CO）₉（CCO）]^2-X/SiO₂-Al₂O₃,SiO₂ AND MgO（X=0-2）CATALYSTS
Feng Shou XIAO RuRen XU Masaru ICHIKAWA Duward F.SHRIVER Xie Xian GUO

..............page:579-580

CHARACTERIZATION OF COBALT SITES IN REDUCED Co-Mo/Al₂O₃ AND Ru-Co-Mo/Al₂O₃ CATALYSTS
Fend Shou XIAO Qin XIN Xie Xian GUO

..............page:581-582

Formation of Methane and Ethylene in Methanol Conversion over HZSM-5 Catalyst
Bo Qing XU Juan LIANG Su Qin ZHAO Guo Quan CHEN

..............page:583-586

SYNTHESIS AND CHARACTERIZATION OF RARE EARTH METAL COMPLEXES WITH PIPERONAL ISONICOTINOYL HYDRAZONE
Ming Xiong WAN Han Qiu DEAN Wei Da SHAN Pei Zhi CHEN

..............page:587-588

SPECTROSCOPIC PROPERTIES OF THE PHYCOBILINS AND THEIR DERIVATIVES
Ling Jiang CHENG Li Jin JIANG Institute of Photographic Chemistry;Chinese Academy of Sciences;Beijing 100101

..............page:589-592

THE INTRAMOLECULAR AROMATIC-RING STACKING INTERACTION OF MIXED LIGAND PALLADIUM（Ⅱ）COMPLEXES Ⅲ.STUDIES ON THE Pd²⁺-A-UTP^4-SYSTEMS BY HNMR
Yu Qiu GONG Hong Liang SUN Department of Chemistry;Hangzhou University;Hangzhou;310028

..............page:593-594