- Novel low-cost green 3 - production process for CO-production of sodium thiomalononitrile by sulfydryl propionitrile (by machine translation)
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The invention discloses a novel low-cost green 3 - production process S2 for CO-producing sodium thiomalononitrile by using sodium thiopropionitrile, and the S1 specific steps are as follows 30 - 35 °C S2 S1 S3 8 °C S4 S3 S5 S2 S6 S4 S4 S7 S6 S5. The reac
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Paragraph 0021-0050
(2019/10/07)
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- Corresponding amine nitrile and method of manufacturing thereof
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The invention relates to a preparation method of nitrile. Compared with the prior art, the preparation method has the characteristics of obvious reduction of the usage amount of ammonia sources, low environmental pressure, low energy consumption, low production cost, high purity and yields of nitrile products, and the like, and can be used for obtaining nitrile with a more complex structure. The invention also relates to a method for preparing corresponding amine with nitrile.
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Paragraph 0136; 0137; 0142
(2018/05/24)
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- Corresponding amine nitrile and method of manufacturing thereof (by machine translation)
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The present invention relates to a nitrile manufacturing method, which has characteristics of significantly-reduced ammonia source consumption, low environmental pressure, low energy consumption, low production cost, high nitrile purity, high nitrile yield and the like compared with the method in the prior art, wherein nitrile having a complicated structure can be obtained through the method. The present invention further relates to a method for producing a corresponding amine from the nitrile.
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Paragraph 0136; 0137; 0142
(2018/07/15)
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- Corresponding amine nitrile and method of manufacturing thereof
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The invention relates to a preparation method of nitrile. Compared with the prior art, the preparation method has the characteristics of obvious reduction of the usage amount of ammonia sources, low environmental pressure, low energy consumption, low production cost, high purity and yields of nitrile products, and the like, and can be used for obtaining nitrile with a more complex structure. The invention also relates to a method for preparing corresponding amine with nitrile.
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Paragraph 0137; 0138; 0139; 0142; 0143
(2018/07/15)
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- METHOD FOR PRODUCING 3-MERCAPTOPROPIONIC ACID, AND METHODS USING SAME FOR PRODUCING CARBOXYLIC ACID ESTER COMPOUND HAVING MERCAPTO GROUP AND THIOURETHANE-BASED OPTICAL MATERIAL
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A method for producing 3-mercaptopropionic acid and methods using same for producing a carbonic acid ester compound having a mercapto group and a thiourethane-based optical material. The present invention improves a process during the production of 3-mercaptopropionic acid, significantly increases yield, and reduces the temperature and time during vacuum distillation, thereby preventing the destruction of a product and significantly increasing productivity. The present invention allows high-purity 3-mercaptopropionic acid having an excellent color to be finally yielded; accordingly, by using same, a high-purity carbonic acid ester compound having an excellent color and a mercapto group can be inexpensively obtained. A thiourethane-based polymeric composition and a thiourethane-based optical material obtained by polymerizing same can likewise be inexpensively obtained by using said carbonic acid ester compound. Such carbonic acid ester compound can be used for the production of inexpensive thiourethane optical lenses; consequently, inexpensive optical lenses having an excellent color can be obtained.
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Paragraph 0054
(2018/07/15)
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- Tributylphosphine, excellent organocatalyst for conjugate additions of non-nucleophilic N-containing compounds
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Conjugate additions of non-nucleophilic N-containing compounds such as amides, thioamides, sulfonamides, and electron-poor anilines with different Michael acceptors can be promoted through the use of tributylphosphine. The range of useful pKa's of nucleophiles has been established (pKa25) and new insights into the mechanism proposed.
- Gimbert, Carolina,Moreno-Ma?as, Marcial,Pérez, Elisabet,Vallribera, Adelina
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p. 8305 - 8310
(2008/02/05)
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- Thiodialkylenyl-5-bistetrazoles and Thiouronium Salts as Potential Slow Acting Anticancer Agents
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A series of Thiodialkylenyl-5-bistetrazoles and Thiouronium salts have been synthesised.The above compounds in comparison with thiodiglycollic and thiodipropionic acids and thiophene-2,5-bisdimethylenylthiouronium dichloride are expected to have prolonged anticancer effect in vivo.
- Kumar, Anil,Tilak, B. D.
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p. 599 - 601
(2007/10/02)
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- Color of maleic anhydride
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Discoloration of maleic anhydride is minimized by first passing the maleic anhydride in molten or dissolved form through a bed of cation exchange resin and then adding to the maleic anhydride a small amount of 3,3'-thiodipropionitrile.
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- Antioxidative properties of phenyl-substituted phenols. Part I. The mechanism of synergism between 4-alkoxy-2,6-diphenylphenols and ββ′-disubstituted diethyl sulphides
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A pronounced synergism between 4-alkoxy-2,6-diphenylphenols and ββ′-disubstituted diethyl sulphides has been observed in the inhibition of autoxidation of polypropene at 180°C. The mechanism of this synergistic action (at temperatures ≥150°C) has been investigated. N.m.r. model experiments have shown that the phenolic antioxidant (AH) is regenerated continuously from the phenoxyl radical (A·) by hydrogen atom donation by the sulphenic acid, a product originating from the ββ′- disubstituted diethyl sulphide. This observation is of possible contributory importance to the understanding of the mechanism of synergistic effects.
- De Jonge, Cornelis R. H. I.,Hageman, Hendrik J.,Huysmans, Willem G. B.,Mijs, Willem J.
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p. 1276 - 1279
(2007/10/06)
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