CAS: 2682-20-4; Methylisothiazolinone

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CAS号999-72-4 N,N'-二甲基-3,3'-二... | CAS号77052-39-2 5-(4-methoxyben... | CAS号1003-22-1 2-methyl-1,2-th... | CAS号614-45-9 过氧化苯甲酸叔丁酯 | CAS号26542-23-4 4,5-Dichloro-2-...

3,3'-二硫代二丙酰甲胺置于氯化亚砜,氯体系中,用 乙酸乙酯 用作溶剂,化学反应 5.17H,以84.9%的收率获得甲基异噻唑啉酮
参考文献:一种3-异噻唑啉酮类化合物的制备方法
标题:一种3-异噻唑啉酮类化合物的制备方法
摘要:本发明公开了一种3‑异噻唑啉酮类化合物的制备方法,包括以下步骤:在反应体系中加入原料与溶剂,搅拌混合;在混合后的溶液中加入脱水剂,搅拌反应;向反应体系中通入氯气,反应混合物搅拌反应,过滤分离得到产物.本发明通过在反应体系中加入化学脱水剂,与反应体系中的水或醇发生反应,从而脱除体系中的水或醇,以避免由水或醇导致的副反应,提高反应的收率,经济效益显著.

专利信息

专利号:US-12221452-B2
优先权日:2017-10-04
标题:Synthesis of cantharidin
发明人：DAVIDSON MATTHEW GENE; EKLOV BRIAN MATTHEW; WUTS PETER; LOERTSCHER BRAD MELVIN; SCHOW STEVEN R
权利人:VERRICA PHARMACEUTICALS INC
摘要:The invention provides synthetic methods for the preparation of cantharidin and analogs thereof. In one aspect, the invention provides an improved Diels-Alder cycloaddition to generate a key intermediate en route to cantharidin and analogs thereof. In certain embodiments, the new Diels-Alder reaction involves reacting Compound (2) in the presence of furan, and in the absence of acid or increased pressure, in an aprotic polar solvent with slight warming, to yield Compound (1) in favorable yield and exo-endo ratio. In another aspect, the invention also provides a new Diels-Alder reaction between compounds of Formula (III) and furan to yield compounds of Formula (IV), which can then be transformed into cantharidin or analogs thereof. In yet another aspect, the invention describes a new palladium-mediated carbonylation providing another key intermediate en route to cantharidin and analogs thereof. In addition to synthetic methods, present invention also provides compounds (i.e., intermediates) useful in the synthesis of cantharidin and analogs thereof. Compounds provided herein may have biological activity, and therefore may be used in the treatment of diseases or conditions (e.g., infectious diseases and skin conditions).

专利号:US-9982005-B2
优先权日:2013-04-04
标 题 :Macrolides and methods of their preparation and use
发明人：MYERS ANDREW G; SEIPLE IAN BASS; ZHANG ZIYANG
权利人:HARVARD COLLEGE
摘要:Provided herein are methods of preparing macrolides by the coupling of an eastern and western half, followed by macrocyclization, to provide macrolides, including both known and novel macrolides. Intermediates in the synthesis of macrolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using the inventive macrolides are also provided. A general diastereoselective aldol methodology used in the synthesis of the western half is further provided.

专利号:US-2023111600-A1
优先权日:2019-12-17
标题 :Polymeric fatty acid compounds for the treatment of fibrous amino acid-based substrates, especially hair
发明人：WAGNER ROLAND; STREICHER KATHARINA; ROHMANN LAURA; WENSKE CHRISTIAN; HAVELI SHRUTISAGAR DATTATRAYA
权利人:MOMENTIVE PERFORMANCE MAT GMBH
摘要:The present invention is directed at mono-, di- or polyquaternary ammonium compounds of the formula (I) wherein x is 1 to 50, and F can be the same or different and is represented by the general formula (II) wherein at least one of the optionally substituted and optionally functional-group-containing hydrocarbon radicals R 1 , R 2 , R 3 , R 4 or R 5 contains at least one estolide moiety comprising two or more ester or amide moieties. The invention also relates to a process for the synthesis of such compounds, the use of the compounds in cosmetic formulations for skin and hair care, cosmetic compositions for the treatment of fibers, and compositions containing one or more of the compounds for the treatment of hair.

专利号:US-2024376504-A1
优先权日:2021-04-08
标题 :Enzymatic synthesis of mycosporine-like amino acids
发明人：DING YOUSONG; CHEN MANYUN
权利人:UNIV FLORIDA
摘要:The present invention relates to methods of producing compounds of interest in a recombinant microorganism. In particular, the present invention relates to using a recombinant microorganism comprising a heterologous nucleic acid encoding one or more mycosporine-like amino acid (MAA) biosynthetic enzymes (e.g., MysH) to produce compounds of interest. Compositions comprising compounds produced using such methods are also provided herein. The present disclosure also provides methods of preventing sunburn, cancer, and chronic inflammatory diseases by administering such compositions to subjects in need thereof.

专利号:US-11466046-B2
优先权日:2014-10-08
标题 :14-membered ketolides and methods of their preparation and use
发明人：MYERS ANDREW G; SEIPLE IAN BASS; ZHANG ZIYANG
权利人:HARVARD COLLEGE
摘要:Provided herein are methods of preparing new 14-membered ketolides via coupling of an eastern and western half moiety, followed by macrocyclization, and optional functionalization. Intermediates in the synthesis of these ketolides including the eastern and western halves are also provided. Pharmaceutical compositions and methods of treating infectious diseases and inflammatory conditions using these ketolides are also provided.

专利号:US-10040964-B2
优先权日:2014-02-12
标题:Use of tristyrylphenol alkoxylate sulfosuccinates in emulsion polymerization and coatings
发明人：LUEBKE GARY; RESCHAK KEITH; LUKA RENEE; KALTENBACH JARROD
权利人:STEPAN CO
摘要:Disclosed are the use of novel surfactants for the synthesis of emulsion polymer latexes, particularly those used in paints, coatings, and pressure sensitive adhesives. The surfactant compositions for emulsion polymer latexes comprise sterically bulky surfactants whose composition comprises at least one alkoxylated polyaryl substituted aromatic sulfosuccinate compound. The novel surfactants provide for the production of stable, small particle size distribution emulsion polymer latexes. The resulting latexes, when formulated into latex paint, impart improvements in water resistance as measured by film opacity, blister resistance and improved leveling characteristics, and when formulated into pressure sensitive adhesives, provide improved water resistance characteristics as measured by film opacity.