- Organic template-free synthesis of zeolite Y nanoparticle assemblies and their application in the catalysis of the Ritter reaction
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Zeolite Y nanoparticle assemblies (Y-NA) with a mesoporous structure were directly synthesized at 75?°C for 16 h without adding any organic templates. The changes in structure, morphology and textural parameters of the materials obtained after different crystallization times were investigated via powder X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N2-sorption. The results show that Y-NA had a micro-mesoporous structure composed of highly crystalline particle assemblies with sizes of 400-900 nm. The H-form Y-NA (HY-NA) is strongly acidic, and exhibits a good catalytic performance in the Ritter reaction, as compared with the H-form microporous zeolite Y and mesoporous zeolite ZSM-5.
- Tang, Ting,Zhang, Lei,Dong, Hai,Fang, Zhongxue,Fu, Wenqian,Yu, Quanyong,Tang, Tiandi
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p. 7711 - 7717
(2017/02/05)
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- An efficient and convenient synthesis of N-substituted amides under heterogeneous condition using Al(HSO4)3 via Ritter reaction
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An efficient and inexpensive synthesis of N-substituted amides from the reaction of aliphatic and aromatic nitriles with various benzylic alcohols (secondary and tertiary) and tert-butyl alcohol by refluxing nitromethane via the Ritter reaction catalyzed by aluminum hydrogen sulfate [Al(HSO4)3] is described. The catalyst which is an air-stable, cost-effective solid acid could be readily recycled by filtration and reused four times without any significant loss of its activity. [Figure not available: see fulltext.]
- Karimian, Elnaz,Akhlaghinia, Batool,Ghodsinia, Sara S.E.
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p. 429 - 439
(2016/03/16)
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- An efficient and scalable ritter reaction for the synthesis of tert-butyl amides
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A scalable procedure for the conversion of nitriles to N-tert-butyl amides via the Ritter reaction was optimized employing tert-butyl acetate and acetic acid. The reaction has a broad scope for aromatic, alkyl, and α,β-unsaturated nitriles.
- Baum, Jean C.,Milne, Jacqueline E.,Murry, Jerry A.,Thiel, Oliver R.
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supporting information; experimental part
p. 2207 - 2209
(2009/07/01)
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- An efficient method for the conversion of aromatic and aliphatic nitriles to the corresponding N-tert-butyl amides: A modified Ritter reaction
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Aromatic and aliphatic nitriles react with tert-butyl acetate in the presence of a catalytic amount of sulfuric acid to give the corresponding N-tert-butyl amides in excellent yields.
- Reddy, K. Laxma
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p. 1453 - 1455
(2007/10/03)
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