54813-78-4Relevant academic research and scientific papers
Transition-Metal-Free Three-Component Synthesis of Tertiary Aryl Amines from Nitro Compounds, Boronic Acids, and Trialkyl Phosphites
Roscales, Silvia,Csáky, Aurelio G.
supporting information, p. 111 - 117 (2019/11/16)
The synthesis of aromatic amines is of continuous interest in chemistry. An exceptionally versatile three-component reaction that directly transforms inexpensive nitro compounds, boronic acids, and trialkyl phosphites into tertiary aromatic amines has been realized. The reaction tolerates alkyl and aryl substituents on the nitro and boronic acid moieties, as well as functionalized phosphites. No transition-metal catalysis is required. The method is orthogonal to other classical metal-catalyzed syntheses since it tolerates the presence of halogens, and also permits the synthesis of functionalized compounds such as α-amino ester derivatives. (Figure presented.).
Method for Preparting Alkylamines
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, (2019/04/05)
The present invention relates to a method for preparing alkylamines using carbon monoxide and the use of this method in the manufacturing of vitamins, pharmaceutical products, adhesives, acrylic fibres and synthetic leathers, pesticides, surfactants, detergents and fertilisers. It also relates to a method for manufacturing vitamins, pharmaceutical products, adhesives, acrylic fibres, synthetic leathers, pesticides, surfactants, detergents and fertilisers, comprising a step of preparing alkylamines by the method according to the invention. The present invention further relates to a method for preparing marked alkylamines and uses thereof.
Synthesis and characterization of some azo-anil dyes
Neubert,Hummel,Bhatt,Keast,Lackner,Margerum,Sherman
, p. 287 - 300 (2007/10/02)
A number of azo-anil dyes of the type RR'N-φ-N--N-φ-N--6CH-φ-Y with Y=CN or NO2 and R,R′=Me, Me; Me,C6H13; Et,Pr and C6H13,C6,H13 were synthesized by reactions of the aminosubstituted nitrosoamine with phenylene diamine followed by condensation of the resulting aniline with the appropriate 4-substituted benzaldehyde. Mesomorphic properties were determined both by hot-stage polarizing microscopy and DSC. A nematic phase was observed only when R=R′=CH3 while smectic A phases occurred in the other homologs. Melting temperatures were greater than 130°. All had colors ranging from red to orange with UV λmax ranging from 448-459 nm and ε 2.20-3.67 E+4. The ΔH melting values ranged from 16.8 to 30.7 KJ/mole and solubilities in a BDH-E7 liquid crystal mixture were low.
Preparation of hexenedioic acid diesters
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, (2008/06/13)
Hexene-1,6-dioates, readily hydrogenated into adipates (which in turn are conveniently hydrolyzed into adipic acid), are prepared by reacting carbon monoxide, an alcohol and at least one dichlorobutene, in the presence of a catalytically effective amount of palladium or a palladium compound and no more than two equivalents (relative to the dichlorobutene) of a tertiary amine reaction promoter; in an alternate embodiment, the tertiary amine and the dichlorobutene are first converted into a quaternary ammonium chloride intermediate.
Indolyl phthalide compounds
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, (2008/06/13)
3-Aryl-3-indolylphthalides, 3-aryl-3-pyrrolylphthalides and 3-aryl-3-carbazolylphthalides prepared by interaction of the appropriate 2-(heteroaryl)carbonylbenzoic acid and the appropriate phenylamine, and 3,3-bis(indolyl)phthalides prepared by the interaction of the appropriate 2-(indolyl)carbonylbenzoic acid and the appropriate indole are useful as color formers in pressure-sensitive carbonless duplicating systems, thermal marking systems and hectographic copying systems.
Heteroarylphthalides
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, (2008/06/13)
3-Aryl-3-indolylphthalides, 3-aryl-3-pyrrolylphthalides and 3-aryl-3-carbazolylphthalides prepared by interaction of the appropriate 2-(heteroaryl)carbonylbenzoic acid and the appropriate phenylamine, and 3,3-bis(indolyl)-phthalides prepared by the interaction of the appropriate 2-(indolyl)carbonylbenzoic acid and the appropriate indole are useful as color formers in pressure-sensitive carbonless duplicating systems, thermal marking systems and hectographic copying systems.
Phthalide compounds, processes and marking systems
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, (2008/06/13)
3-Aryl-3-indolylphthalides, 3-aryl-3-pyrrolylphthalides and 3-aryl-3-carbazolylphthalides prepared by interaction of the appropriate 2-(heteroaryl)carbonylbenzoic acid and the appropriate phenylamine, and 3,3-bis(indolyl)phthalides prepared by the interaction of the appropriate 2-(indolyl)carbonylbenzoic acid and the appropriate indole are useful as color formers in pressure-sensitive carbonless duplicating systems, thermal marking systems and hectographic copying systems.
