- Solvent-free one-pot reduction of imines generated in situ from aldehydes and aniline by tributyltin hydride on silica gel
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Imines generated in situ from aldehydes and aniline can be reduced using tributyltin hydride on silica gel under solvent-free conditions to provide the corresponding amines in good yields.
- Hiroi, Ryoichi,Miyoshi, Norikazu,Wada, Makoto
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- Simple reversible fixation of a magnetic catalyst in a continuous flow system: Ultrafast reduction of nitroarenes and subsequent reductive amination using ammonia borane
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Continuous reductive amination of aldehydes with nitroarenes over a Pd-Pt-Fe3O4 catalyst was performed. We used NH3BH3 as not only a hydrogen source for nitro reduction, but also a reductant for imine reduction. Secondary aromatic amines were obtained in the continuous flow reaction in good to excellent yields.
- Byun, Sangmoon,Cho, Ahra,Kang, Dong Yun,Kim, B. Moon,Kim, Ha Joon,Kim, Hong Won,Kim, Seong Min,Lei, Cao,Park, Jin Kyoon
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p. 944 - 949
(2020/03/11)
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- Method for synthesizing N-alkyl arylamine
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The invention discloses a method for synthesizing N-alkyl arylamine. The method comprises the steps of adding amine, alcohol, a metal iridium catalyst, alkali to a reaction vessel for reflux reaction,cooling to room temperature after reaction, spin-drying a solvent and then conducting separation on columns to obtain a target compound. According to the method for synthesizing the N-alkyl arylamine, a series of N-benzylaniline derivatives are prepared by using transition metal iridium as the catalyst, weak base is used, by-product is water, and a product has relatively good yield, and has certain applicable value.
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Paragraph 0053-0055
(2018/03/24)
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- Use of a Cyclometalated Iridium(III) Complex Containing a N∧C∧N-Coordinating Terdentate Ligand as a Catalyst for the α-Alkylation of Ketones and N-Alkylation of Amines with Alcohols
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A cyclometalated iridium(III) complex containing a N∧C∧N-coordinating terdentate ligand [Ir(dpyx-N,C,N)Cl(μ-Cl)]2 was found to be a general and highly effective catalyst for the α-alkylation of ketones and N-alkylation of amines with alcohols. In the presence of catalyst (1 mol % Ir) and base (0.2-0.5 equiv), a variety of desirable products were obtained in good yields under an air atmosphere. Notably, this research exhibited the new potential of Ir(III) complexes bearing non-Cp? ligand and will facilitate the progress of the hydrogen autotransfer process.
- Liu, Pengcheng,Liang, Ran,Lu, Lei,Yu, Zhentao,Li, Feng
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p. 1943 - 1950
(2017/02/26)
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- Chiral organometallic compounds
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A chiral, organometallic compound which, at a molecular level, has no C2 symmetry and comprises a carbon to carbon bond joining a chiral carbon atom to a carbon atom of a cyclopentadiene ring that is non-symmetrically substituted. Examples of such compounds include compounds of formula (I): STR1 wherein X1 and X2 are, independently, groups which are removable during a chemical reaction; M is titanium, zirconium or hafnium; and R1-8,11 are as specified in the description.
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