📜四氯乙烯置于desulfitobacterium Strain Dce,乳酸钠体系中,用 Various Solvent(S) 用作溶剂,化学反应生成顺-1,2-二氯乙烯 参考文献:Reductive Dechlorination Of Cis-1,2-Dichloroethene And Vinyl Chloride By "dehalococcoides Ethenogenes" 标题:Reductive Dechlorination Of Cis-1,2-Dichloroethene And Vinyl Chloride By "dehalococcoides Ethenogenes" 摘要:Cis-Dichloroethene (Dce) And Vinyl Chloride (Vc) Often Accumulate In Contaminated Aquifers In Which Tetrachloroethene (Pce) Or Trichloroethene (Tce) Undergo Reductive Dechlorination. "Dehalococcoides Ethenogenes" Strain 195 Is The First Isolate Capable Of Dechlorinating Chloroethenes Past Cis-Dce. Strain 195 Could Utilize Commercially Synthesized Cis-Dce As An Electron Acceptor,But Doses Greater Than 0.2 Mmol/l Were Inhibitory,Especially To Pce Utilization. To Test Whether The Cis-Dce Itself Was Toxic,Or Whether The Toxicity Was Due To Impurities In The Commercial Preparation (97% Nominal Purity),We Produced Cis-Dce Biologically From Pce Using A Desulfitobacterium Sp. Culture. The Biogenic Cis-Dce Was Readily Utilized At High Concentrations By Strain 195 Indicating That Cis-Dce Was Not Intrinsically Inhibitory. Analysis Of The Commercially Synthesized Cis-Dce By Gc/mass Spectrometry Indicated The Presence Of Approximately 0.4% Mol/mol Chloroform. Chloroform Was Found To Be Inhibitory To Chloroethene Utilization By Strain 195 And At Least Partially Accounts For The Inhibitory Activity Of The Synthetic Cis-Dce. Vc,A Human Carcinogen That Accumulates To A Large Extent In Cultures Of Strain 195,Was Not Utilized As A Growth Substrate,And Cultures Inoculated Into Medium With Vc Required A Growth Substrate,Such As Pce,For Substantial Vc Dechlorination. However,High Concentrations Of Pce Or Tce Inhibited Vc Dechlorination. Use Of A Hexadecane Phase To Keep The Aqueous Pce Concentration Low In Cultures Allowed Simultaneous Utilization Of Pce And Vc. At Contaminated Sites In Which "D,Ethenogenes" Or Similar Organisms Are Present,Biogenic Cis-Dce Should Be Readily Dechlorinated,Chloroform As A Co-Contaminant May Be Inhibitory,And Concentrations Of Pce And Tce,Except Perhaps Those Near The Source Zone,Should Allow Substantial Vc Dechlorination. Doi:10.1021/es001285I
专利号:US-11866398-B2 优先权日:2018-05-15 标 题:Total synthesis of prostaglandin J natural products by stereoretentive metathesis 发明人:LI JIAMING; CHEN XU; AHMED TONIA S; STOLTZ BRIAN M; GRUBBS ROBERT H 权利人:CALIFORNIA INST OF TECHN 摘要:This invention relates generally to the synthesis of Δ12-Prostaglandin J product using stereoretentive ruthenium olefin metathesis catalysts supported by dithiolate ligands. Δ12-Prostaglandin J products were generated with excellent selectivity (>99% Z) and in moderate to high/good yields (47% to 80% yield; 58% to 80% yield).
专利号:US-3959322-A 优先权日:1960-09-22 标 题:Synthesis of 13-alkyl-gon-4-ones 发明人:HUGHES GORDON ALAN; SMITH HERCHEL 权利人:SMITH HERCHEL 摘要:The preparation of 13-methylgon-4-enes and novel 13-polycarbonalkylgon-4-enes by a new total synthesis is described. 13-Alkylgon-4-enes having progestational, anabolic and androgenic activities are prepared by forming a tetracylic gonane structure unsaturated in the 1,3,5(10),9(11) and 14-positions, selectively reducing in the B- and C-rings, and converting the aromatic A-ring compounds so-produced to gon-4-enes by Birch reduction and hydrolysis.
专利号:US-2013178626-A1 优先权日:2011-07-21 标题:Bootstrapping and Synthesis of Mechanosynthesis Tips 发明人:FREITAS JR ROBERT A; MERKLE RALPH C 权利人:FREITAS JR ROBERT A; MERKLE RALPH C 摘要:Processes are described for manufacturing atomically-precise tips using one or more tips in one or more mechanosynthetic reactions to create one or more atomically-precise tips. The processes may employ a variety of feedstock, binding any of a wide range of atoms to a workpiece to build the one or more atomically-precise tips. The processes result in atomically-precise mechanosynthesis tips with a wide variety of possible tip structures using a wide range of feedstock binding elements. Characteristics of such tips that may be used when designing new embodiments are also described.
专利号:US-4143050-A 优先权日:1977-01-05 标题 :Manufacture of 3-halosulfonylthiophene-carboxylic acid compounds 发明人:ROSSY PHILLIP A; HOFFMANN WERNER; MUELLER NORBERT 权利人:BASF AG 摘要:3-Halosulfonylthiophene-carboxylic acid compounds are manufactured by reacting 3-ketothiophane-carboxylic acid compounds with sulfonic acid compounds, reacting the end product from the 1st reaction stage with alkali metal polysulfides, reacting the end product from the 2nd stage with a dehydrogenating agent and finally reacting the end product from the 3rd stage with halogen and water. The products are starting compounds for the manufacture of drugs, dyes and crop protection agents and have an anti-inflammatory, analgesic and anti-rheumatic action. In particular, the end products I are starting materials for the manufacture of sweeteners which are non-toxic and free from an after-taste, flavor-improving agents, diabetic aids and feedstuffs, and provide the means of a simple and economical synthesis of thiophene-saccharins.
专利号:US-8445695-B2 优先权日:2003-10-31 标 题 :Synthesis of phosphono-substituted porphyrin compounds for attachment to metal oxide surfaces 发明人:LINDSEY JONATHAN S; LOEWE ROBERT S; MUTHUKUMARAN KANNAN; AMBROISE AROUNAGUIRY 权利人:LINDSEY JONATHAN S; LOEWE ROBERT S; MUTHUKUMARAN KANNAN; AMBROISE AROUNAGUIRY; UNIV NORTH CAROLINA STATE; ZETTACORE INC 摘要:A method of making a phosphono-substituted dipyrromethane comprises reacting an aldehyde or acetal having at least one phosphono group substituted thereon with pyrrole to produce a phosphono-substituted dipyrromethane; and wherein the phosphono is selected from the group consisting of dialkyl phosphono, diaryl phosphono, and dialkylaryl phosphono. Additional methods, intermediates and products are also described.
专利号:US-2023303474-A1 优先权日:2020-07-30 标 题 :Total syntheses of specialized pro-resolving mediators (spms), structural isomers and structural analogs 发明人:MARETTE ANDRÉ; MALTAIS RENÉ; POIRIER DONALD; SANCÉAU JEAN-YVES 权利人:UNIV LAVAL 摘要:A method for the synthesis of specialized pro-resolving mediators, structural isomers thereof and analogs thereof is disclosed herein. The method comprises reacting a compound of the formula (I): n n n n n n n n n n n n wherein R 1 is alkyl (C≤12) , cycloalkyl (C≤12) , alkenyl (C≤12) , alkylidene (C≤12) , alkynyl (C≤12) , aryl, aralkyl, heteroaryl or heteroaralkyl; and X 1 , X 2 and X 3 are each independently hydroxy or OP, wherein P is a hydroxy protecting or hydroxy activating group; with a reducing agent under conditions sufficient to produce a compound of the formula (II): n n n n n n n n n n n n n n n n wherein: R 1 , X 1 , X 2 and X 3 are as defined above. n n n n n Novel protectins, more specifically novel structural isomers and analogs of PD1 and PDX are also disclosed.
[参考文献]: Andrew R Sabalowsky, Et Al. Trichloroethene And Cis-1,2-Dichloroethene Concentration-Dependent Toxicity Model Simulates Anaerobic Dechlorination At High Concentrations. Ii: Continuous Flow And Attached Growth Reactors. Biotechnol Bioeng. 2010 Oct 15;107(3):540-9. [参考文献]: C Andrew Ramsburg, Et Al. Degradation Product Partitioning In Source Zones Containing Chlorinated Ethene Dense Non-Aqueous-Phase Liquid. Environ Sci Technol. 2010 Dec 1;44(23):9105-11. [参考文献]: Daniel Ronen, Et Al. Simultaneous Counter-Flow Of Chlorinated Volatile Organic Compounds Across The Saturated-Unsaturated Interface Region Of An Aquifer. Water Res. 2010 Apr;44(7):2107-12. [参考文献]: Jaejin Lee, Et Al. Characterization Of Microbial Community Structure And Population Dynamics Of Tetrachloroethene-Dechlorinating Tidal Mudflat Communities. Biodegradation. 2011 Jul;22(4):687-98. [参考文献]: Mitchell R Olson, Et Al. Implications Of Soil Mixing For Napl Source Zone Remediation: Column Studies And Modeling Of Field-Scale Systems. J Contam Hydrol. 2015 Jun-Jul:177-178:206-19.
合成参考文献
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