- Perovskite as Recyclable Photocatalyst for Annulation Reaction of N-Sulfonyl Ketimines
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A sustainable and cost-effective manner for the photocatalytic annulation reaction of N-sulfonyl ketimines with N-arylglycines to synthesize imidazolidine-fused sulfamidates (31 examples) by employing CsPbBr3 as a heterogeneous photocatalyst has been developed. The catalyst CsPbBr3 can be simply recovered from the reaction mixture and reused at least five times without an obvious reduction in its photocatalytic reactivity, exhibiting a high catalyst economic feature.
- Shi, Anzai,Sun, Kai,Chen, Xiaolan,Qu, Lingbo,Zhao, Yufen,Yu, Bing
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p. 299 - 303
(2022/01/04)
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- Synthesis, antiproliferative, and antioxidant activities of substituted n-[(1,3,4-oxadiazol-2-yl) methyl] benzamines
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Background: Oxadiazole emerged as an important class of heterocyclic compound with diverse biological activities like anticancer, antitubercular, anticonvulsant, anti-tubulin, antimicrobial, anti-inflammatory, antioxidant etc. Objective: The objective of
- Ahsan, Mohamed Jawed,Bakht, Mohamed Afroz,Balaraju, Tuniki,Bhandari, Lakshya,Geesi, Mohammed H.,Gorantla, Vasubabu,Hassan, Mohd. Zaheen,Hussain, Afzal,Jadav, Surender Singh,Khalilullah, Habibullah,Makkar, Shally,Rani, Sandhya,Riadi, Yassine,Singh, Rajan
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p. 145 - 154
(2020/02/29)
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- Synthesis and evaluation of phenyl substituted sydnones as potential DPPH-radical scavengers
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A series of phenyl substituted sydnones has been synthesized and their radical-scavenging activity has been studied on DPPH free radical. Out of eighteen compounds screened, nine compounds show interesting activity. A mechanism is presented whereby sydnones scavenge DPPH radical through donating H-atom at 4th-position. Its strong radical-scavenging activity mainly arises from 1, 2, 3-oxadiazolium-5-olate ring. Different substituents and their positions on the phenyl ring differently influence DPPH scavenging activity and therefore, may provide clues to design and develop better free-radical scavenging sydnones with multiple activities.
- Mallur, Shanta G.,Tiwari,Raju, B. China,Babu, K. Suresh,Ali, A. Zehra,Sastry,Rao, J. Madhusudana
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p. 1686 - 1689
(2008/09/19)
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- Microwave-assisted synthesis of N-arylglycines: Improvement of sydnone synthesis
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Reactions of anilines with ethyl bromoacetate under microwave irradiation have afforded N-arylglycines that are subsequently converted to their N-nitroso derivatives with a combination of silica chloride or periodic acid, wet SiO2 and sodium nitrite in CH2Cl2 with satisfactory yields. In the final step, the use of 1,3-dibromo-5,5-dimethylhydantoin (DBH) as a new and effective reagent for dehydration of N-nitroso-N-arylglycines to sydnones was successfully examined.
- Azarifar, Davood,Bosra, Hassan Ghasemnejad,Zolfigol, Mohammad-Ali,Tajbaksh, Mahmood
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p. 175 - 181
(2007/10/03)
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- Soluble Polymer-Supported Synthesis of α-Amino Acid Derivatives
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A practical and efficient synthesis of N-substituted α-amino acid derivatives on soluble polymer support is described.
- Hu, Chunling,Chen, Zuxing,Yang, Guichun
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p. 219 - 224
(2007/10/03)
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- One-Pot Synthesis of Substituted Aniline-N,N-diacetic Acids
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Substituted aniline-N,N-diacetic acids are synthesized by reaction of substituted anilines with n-butyllithium and sodium chloroacetate in good yields.
- Lin, Shaw-Tao,Huang, Ru-Jiun
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p. 548 - 549
(2007/10/02)
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