- Synthesis method of cyanoacrylate compound
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The method comprises the following reaction steps: a compound (1) reacts with a compound (2) to directly prepare a compound (3), and is characterized in that the reaction is carried out in a molten state. Compound (1). Compound (2). Compound (3).
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Paragraph 0028
(2021/09/21)
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- Preparation method of multipurpose compound s-triazine derivative
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The invention provides a preparation method of a s-triazine derivative, which is characterized in that an aryl nitrile compound is used as a substrate, lithium bis (trifluoromethanesulfonimide) is used as a catalyst, and the s-triazine derivative is obtained through a cyclopolymerization reaction. Compared with the prior art, the method has the advantages that a catalytic system is simple and easy to obtain, too high or too low rigorous reaction temperature is not needed, the reaction condition is mild, the reaction time is short, the post-treatment is simple, and the obtained s-triazine derivative has very high yield and is suitable for large-scale production.
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Paragraph 0059-0066
(2021/06/26)
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- Pigment composition for a color filter and a color filter (by machine translation)
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[Problem] excellent contrast color filter and color filter suitable for a pigment composition. The diketopyrrolopyrrole-based pigment [a], (I) a triazine compound represented by the formula containing a pigment composition for a color filter. [Drawing] no (by machine translation)
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Paragraph 0097-0098; 0100-0101
(2017/07/13)
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- New symmetrically substituted 1,3,5-triazines as host compounds for channel-type inclusion formation
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A new synthetic procedure for the production of symmetrically substituted 1,3,5-triazines by cyclization from aromatic nitriles in the molten state with zinc chloride as a catalyst has been developed and applied for a number of aromatic and fluoro aromati
- Berger, Ricarda,Hauser, Juerg,Labat, Gael,Weber, Edwin,Hulliger, Juerg
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scheme or table
p. 768 - 770
(2012/04/04)
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- Addition of amines to nitriles catalyzed by ytterbium amides: An efficient one-step synthesis of monosubstituted N-arylamidines
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A one-step synthesis of monosubstituted N-arylamidinates via addition of amines to nitriles catalyzed by ytterbium amides is reported. The reactions with various substrates give the products in good to excellent yields with 5 mol % ytterbium at 100 °C under solvent-free conditions.
- Wang, Junfeng,Xu, Fan,Cai, Tao,Shen, Qi
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p. 445 - 448
(2008/09/19)
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- Lanthanide(III) Ion Catalyzed Reaction of Ammonia and Nitriles: Synthesis of 2,4,6-Trisubstituted-s-triazines
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Lanthanum and yttrium trifluoromethanesulfonates at 1 mole percent concentration, have been found to catalyze a reaction between ammonia and aromatic nitriles to yield symmetrically substituted 2,4,6-triaryl-s-triazines.The generally high yields and relatively mild reaction conditions of this procedure suggest it as an alternative to other aromatic nitrile cyclotrimerization reactions.Of the aliphatic nitriles studied, acetonitrile and cyclopropanecarbonitrile gave good yields of triazine, propionitrile and butyronitrile gave significantly reduced yields of triazines 3b and3c respectively.Rearrangement of 3a and 3b to alkylated-4-aminopyrimidines was observed.
- Forsberg, John H.,Spaziano, Vincent T.,Klump, Stephen P.,Sanders, Kathleen M.
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p. 767 - 770
(2007/10/02)
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- Triflic acid catalyzed aroylation of arenes with aromatic nitriles
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In the presence of triflic acid, the reaction of different aromatic nitriles with arenes under a variety of conditions was examined.In addition to the normal reaction products (the s-triazines), aroylation of the arene to produce diaryl ketones in 20 to 50 percent yield was observed.Possible mechanism for the reaction was proposed.
- El-Khagawa, Ahmed M.
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p. 372 - 374
(2007/10/02)
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- REACTION OF NITRILES WITH 100percent SULFURIC ACID. INFLUENCE OF THE STRUCTURAL EFFECTS OF NITRILES ON THE DIRECTION OF TRANSFORMATION, THE CHARACTER OF COMPLEX FORMATION, AND THE FORM OF THE KINETIC EQUATION
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The competing directions and kinetics were studied for the reactions of nitriles with 100percent sulfuric aicd.The donor-acceptor interaction between the nitriles and sulfuric acid and DMSO was also investigated.It was shown that variation in the structural effects of the nitriles gives rise to change in the form of the kinetic equation, the ratio between the competing reaction paths, and the character of the donor-acceptor interaction.Situations where the nitrile does not enter into the kinetic equation of the reaction are the most typical.Methods for directed control of the ratio between the competing paths are given.The probable schemes for the mechanism of the reactions are discussed.
- Bodrikov, I. V.,Michurin, A. N.,Vasyanina, G. I.,Bochkareva, N. N.,Krasnoj, V. L.
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p. 2123 - 2133
(2007/10/02)
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- Preparation of sym-triazines by trimerization of nitriles in trifluoromethanesulfonic acid
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Aliphatic and aromatic nitriles are trimerized to substituted symmetrical triazines in the presence of trifluoromethanesulfonic acid.
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