云南高校图书馆联盟文献共享服务平台- DITHIOACETALS

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Controllable cross-coupling of thiophenols with dichloromethane mediated by consecutively paired electrolysis: 《Green Synthesis and Catalysis》2023年第1期35-40,共6页Ting Zeng Jianjing Yang Kelu Yan Wei Wei Jiangwei Wen; This work is supported by the National Natural Science Foundation of China(No.21902083);the Natural Science Foundation of Shandong Province(No.ZR2020QB130);This work is also supported by the Talent Program Foundation of Qufu Normal University(Nos.6132 and 6125).; Chloroalkanes are important building blocks in the synthesis,but their use in redox chemistry is limited by their negative reduction potentials.Electrosynthesis can precisely control the reaction energy just by adjust...; 关键词：Paired electrolytic CROSS-COUPLING DICHLOROMETHANE THIOPHENOLS DITHIOACETALS SULFOXIDES

Synthesis, Spectroscopic Characterization and Antimicrobial Activity of Some New 2-Substituted Imidazole Derivatives: 《International Journal of Organic Chemistry》2015年第1期15-28,共14页Asmaa S. Salman Anhar Abdel-Aziem Marwa J. S. Alkubbat; The reaction of imidazole-2-thione derivative 1 with 2-chloro-N-p-tolylacetamide afforded the corresponding 2-(1HI-imidazol-2-ylthio)-N-p-tolylacetamide 2. Reaction compound 2 with different reagents such as p-chlorob...; 关键词：Imidazole-2-Thione α-Oxoketen DITHIOACETALS Thiocarbamyl THIAZOLE Antibacterial ANTIFUNGAL

A novel approach towards dethioacetalization reactions with H_2O_2-SOC1_2 system: 《Chinese Chemical Letters》2012年第1期81-85,共5页Kiumars Bahrami Mohammad Mehdi Khodaei Maryam Tajik Vida Shakibaian; the Razi University Research Council for partial support of this work; A simple and efficient protocol for the deprotection of dithioacetal,1,3-dithianes and 1,3-dithiolanes has been developed using H_2O_2-SOC1_2 reagent system.In addition to the absence of overoxidation products for oxi...; 关键词：Deprotection Carbonyl protecting group Dethioacetalization Dithioacetals Hydrogen peroxide

Azo-coupling Decarboxylation Reaction of α-Carboxy Ketene Dithioacetals in Water-a New Route to 1,2-Diaza-1,3-butadienes被引量：1: 《Chinese Journal of Chemistry》2006年第10期1431-1434,共4页徐显秀王芒刘群潘玲赵玉龙; Project supported by the National Natural Science Foundation of China （No. 20272008） and the Key Grant Project of Chinese Mimstry of Eucation （No. 10412）.; Under basic conditions, a series of 4,4-dialkylthio-l,2-diaza-l,3-butadienes were synthesized in good to excellent yields via a novel azo-coupling decarboxylation reaction by reacting a-carboxyl ketene dithioacetals w...; 关键词：α-carboxy ketene dithioacetal azo-coupling decarboxylation reaction 4 4-dialkylthio-l 2-diaza-l 3-butadiene

Chemoselective Bromodecarboxylation ofα-Carboxy-α-cinnamoyl Ketene Cyclic Dithioacetals被引量：4: 《Chemical Research in Chinese Universities》2005年第5期626-629,共4页WANG Mang XU Xian-xiu LIU Qun YANG Xiao-xia; Supported by the National Natural Science Foundation of China(No. 29862004) ;Scientific and Technological DevelopmentProgram Foundation of Jilin Province(No. 20040565).; α-Oxoketene dithioacetals（ compound 1 ） are versatile synthons for organic synthesis due to their specially structural characteristic, that is, the masked ketene is conjugated with the convertible carbonyl in their...; 关键词：CHEMOSELECTIVE Bromodecarboxylation α-Carboxy-α-cinnamoyl ketene cyclic dithioacetal

Condensation Reaction of α-Aroyl-α-acetyl Ketene Cyclic Dithioacetals with Aromatic Aldehydes被引量：2: 《Chinese Chemical Letters》1999年第1期5-6,共2页Zhong Wei XIE Qun Xin FANG Yu Lan HU Met Xin ZHAO Dong YU Qun LIU(Department of Chemistry, Northeast Normal University, Changchun, 130024); The title compounds 3 and 4 condensed with aromatic aldehydes to give a--aroylsicinnamoyl ketene cyclic dithioacetals 5 and 6 with sodium ethoxide as the base. The stereochemistryofs and 6 was assigned as E-configurat...; 关键词：α-aroyl-α-cinnamoyl ketene cyclic dithioacetals aromatic aldehydes condensation reaction

α－OXOKETENE　CYCLIC　DITHIOACETALS　CHEMISTRY　──REACTION　OF　α，α－DIOXO（ESTER）KETENE　CYCLIC　DITHIOACETALS　WITH　BUTANONE: 《Chinese Chemical Letters》1996年第2期95-98,共4页Zai Ming ZHU Yong Ting XU(Department of chemistry, Liaoning NOrmal University,Delian, 116029)Qun LIU(Department of Chemistry,Northeast Normal University,Changchun, 130024)Jie Han HU(Dalian Institute of Chemical Physics,Academia Sinica,Dalian, 116001); Cyclic dithioacetals of α,α-dioxo (estcr) ketene 3 were reacted with butanone to afford the Michael adducts 4, catalyZed by metal Na. This process provides a new method for the Synthesis of ring-compouds in goob yie...

STUDIES　ON　THE　ADDITION　REACTION　OF　GRIGNARD　REAGENTS　TO　α－CINNAMOYLKETENE（1，3－PROPYLENE）DITHIOACETALS: 《Chinese Chemical Letters》1996年第1期5-6,共2页Qun Xing FANG Chun LIN Shu Jia ZHANG Qun LIU (Department of Chemistry , Northeast Normal University, Changchun, 130024); The addition reaction of Grignard reagents to a-cinnamoyl ketene(l,3propylene) dithoacetals was performed . The experiments show that the addition proceeds completely in a conjugated l,4-manner. Possible mechanism fo...

THECHEMICAL　SELECTTVE　ADDITION　OF　GRIGNARD　REAGENT　TO　α－CINNAMOYL　KETENE（1，2－ETHYLENE）DITHIOACETALS: 《Chinese Chemical Letters》1995年第8期653-654,共2页; The addition teaction of Grignard reagents to a-cinnamoyl ketene (1, 2-ethylene) dithioncetals 4 was examined.The results showed that the 1, 4-manner nucleoohilie attack at the cinnamoyl carbon double bond occurred. P...

STUDIES　ON　THE　REACTIVITY　OF　CYCLOAROMATIZATION　REACTION　VIA　a－OXO　KETENE　DITHIOACETALS: 《Chinese Chemical Letters》1994年第7期577-580,共4页Qun LIU Zhi Ling WANG Shu Jia ZHANG Zhi Yun YANG(Department of Chemistry, Northeast Normal University, Changchun, 130024); The dihydric dithioketenes 3a-c obtained by 1,2-addition of methallyl Grignard reagent to bis(alkylthio)methylidene derivative ofdimedone 2a-c wewr converted to the cycloaromatization product 4 assisted by boron trifl...; 关键词：OXO KETENE REACTION CYCLOAROMATIZATION DITHIOACETALS VIA

DITHIOACETALS