CAS: 34619-12-0; 2-Keto-4-Butanethiol

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34047-39-7 30098-74-9 24653-75-6

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CAS号78-94-4 丁烯酮 | CAS号60700-15-4 2,4(3H,5H)-Thio...

3-Acetyl-(3H,5H)-Tetrahydrothiophene-2,4-Dione置于吡啶体系中,化学反应生成 4-巯基-2-丁酮
参考文献:Thiolane-2,4-Dione 和衍生物的碱诱导光反应的多样性.碳骨架的还原环解理和新的重排
标题:Thiolane-2,4-Dione 和衍生物的碱诱导光反应的多样性.碳骨架的还原环解理和新的重排
摘要:在碱存在的情况下,在甲醇中对硫戊环-2,4-二酮(硫代特酮酸)及其衍生物 1A-1D 进行辐照诱导还原性环裂解,反应生成 β,β'-二酮酯.在非质子溶剂(如乙腈或丙酮)中也观测到碱诱导的还原环裂解,尽管在这些情况下获得的产物是 β,β'-二酮酰胺.另一方面,在碱存在的情况下,在水中照射 1A-1D 会引起碳骨架的重排,反应生成琥珀酸硫酐,γ-酮酰胺或琥珀酰胺以及还原产物.当吡啶用作水中光解的碱时,两种 3-乙酰基衍生物 1A 和 1B 产生 γ-酮硫醇和相应的二硫化物,这是由另一种类型的碳骨架重排产生的.
DOI:10.1246/bcsj.52.3601

专利信息

专利号:US-11104746-B2
优先权日:2017-11-27
标题:Process for the synthesis of a cyclodextrin derivative
发明人：PUIG SERRANO JORDI; BOSCH I LLADO JORDI; NG CHOI ITENG; DURAN LÓPEZ ERNESTO
权利人:MEDICHEM SA
摘要:This invention relates to an improved process for the synthesis of Sugammadex or a salt thereof, to Sugammadex or a salt thereof having high purity as obtained by said process and to pharmaceutical compositions comprising said high purity Sugammadex or a salt thereof.

专利号:US-2003232952-A1
优先权日:2001-02-02
标题:Design and synthesis of instant - degradable plastics
发明人：ROSEN OREN
摘要:A novel class of instant degradable synthetic polymeric plastics having the characteristics and properties of conventional forms of plastics is developed by providing a new application advantage of incorporating latent, labile, dormant chemical bond nuclei such as disulfide and sulfenyl derivatives of the plastic compounds with latent nucleophilic properties. The special advantage of the instant degradable polymers over the existing biodegradable and other degradable polymer counterparts, is their engineering and design, which makes the kinetics of their degradation instant, and the chemical and physical properties of their by-products allows soluble dissolution into non-toxic aqueous solvent media, thus enabling a practical treatment of waste and avoiding bio-hazardous pollution of the environment. These novel plastic products are made from a variety of compositions of polymers and their compatible nontoxic modifiers. The resulting novel instant degradable plastic products retain latent dormant solubility properties that are triggered upon mild chemical reaction, thus enabling cost effective and facile recycling of plastic refuge.

专利号:US-2006183886-A1
优先权日:1995-11-22
标题:Ligands to enhance cellular uptake of biomolecules
发明人：TSO PAUL O; DUFF ROBERT; ZHOU YUANZHONG; DEAMOND SCOTT; ROBY CLINTON
权利人:CELL WORKS THERAPEUTICS INC A
摘要:The present invention relates to the design and synthesis of homogeneous A-L-P constructs, which contain a hepatic ligand to direct an oligomer or “payloadâ€? to a hepatocyte intracellularly via a receptor-mediated, ligand-directed pathway.

专利号:US-9757463-B2
优先权日:2012-06-15
标题 :Linear polyester and semi-linear glycidol polymer systems: formulation and synthesis of novel monomers and macromolecular structures
发明人：HARTH EVA M; BEEZER DAIN B; LI GUANGZHAO; SPEARS BENJAMIN R; STEVENS DAVID M
权利人:UNIV VANDERBILT
摘要:Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

专利号:US-7329767-B2
优先权日:2003-10-03
标 题:Conjugated dienamides, methods of production thereof, compositions containing same and uses thereof
发明人：DEWIS MARK L; JOHN THUMPLASSERIL V; ECKERT MARKUS A; COLSTEE JAN HERMAN; DA COSTA NEIL C; PEI TAO
权利人:INT FLAVORS & FRAGRANCES INC
摘要:Described are mixtures of at least four of the alkadienamides defined according to the structure: n nwherein R represents C 1 -C 2 n-alkyl; R 1 is 2-methyl-1-propyl and R 2 is hydrogen, or R 1 and R 2 taken together is a moiety having the formulan n nwherein n is 4 or 5, or compositions containing substantial concentrations of such mixtures, prepared according to novel processes: (a) extraction of a ground substantially dried fruit of one of the Piper species, Piper longum Linn or Piper peepuloides ; (b) natural product-forming synthesis; or (c) synthetic product-forming synthesis. Also described are uses of the thus-formed products for augmenting, enhancing or imparting an aroma, taste, chemesthetic effect and/or antibacterial effect in or to a consumable material and/or in the oral cavity and/or on the mammalian epidermis.

专利号:US-8007841-B2
优先权日:2003-10-03
标 题 :Conjugated dienamides, methods of production thereof, compositions containing same and uses thereof
发明人：JOHN THUMPLASSERIL V; ECKERT MARKUS A; DEWIS MARK L; COLSTEE JAN HERMAN; DA COSTA NEIL C
权利人:INT FLAVORS & FRAGRANCES INC
摘要:Described are mixtures of at least four of the alkadienamides defined according to the structure: n nwherein R represents C 1 -C 2 n-alkyl; R 1 is 2-methyl-1-propyl and R 2 is hydrogen, or R 1 and R 2 taken together is a moiety having the formula —(CH 2 ) n —, wherein n is 4 or 5, or compositions containing substantial concentrations of such mixtures, prepared according to novel processes: (a) extraction of a ground substantially dried fruit of one of the Piper species, Piper longum Linn or Piper peepuloides ; (b) natural product-forming synthesis; or (c) synthetic product-forming synthesis. Also described are uses of the thus-formed products for augmenting, enhancing or imparting an aroma, taste, chemesthetic effect and/or antibacterial effect in or to a consumable material and/or in the oral cavity and/or on the mammalian epidermis.