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5 Results Found

  • Article
  • Open Access
11 Citations
4,930 Views
15 Pages

Photolysis of 5-Azido-3-Phenylisoxazole at Cryogenic Temperature: Formation and Direct Detection of a Nitrosoalkene

  • Upasana Banerjee,
  • William L. Karney,
  • Bruce S. Ault and
  • Anna D. Gudmundsdottir

27 January 2020

To enhance the versatility of organic azides in organic synthesis, a better understanding of their photochemistry is required. Herein, the photoreactivity of azidoisoxazole 1 was characterized in cryogenic matrices with IR and UV-Vis absorption spect...

(This article belongs to the Section Physical Chemistry)
  • Review
  • Open Access
68 Citations
13,122 Views
22 Pages

13 October 2009

An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and aminophos...

  • Article
  • Open Access
10 Citations
3,080 Views
14 Pages

3-(1,2,3-Triazol-4-yl)-β-Carbolines and 3-(1H-Tetrazol-5-yl)-β-Carbolines: Synthesis and Evaluation as Anticancer Agents

  • João L. P. Ribeiro,
  • Joana B. Loureiro,
  • Susana M. M. Lopes,
  • Lucília Saraiva and
  • Teresa M. V. D. Pinho e Melo

3 December 2022

Herein, the synthesis and anticancer activity evaluation of a series of novel β-carbolines is reported. The reactivity of nitrosoalkenes towards indole was explored for the synthesis of novel tryptophan analogs where the carboxylic acid was repl...

(This article belongs to the Section Medicinal Chemistry)
  • Article
  • Open Access
11 Citations
5,900 Views
14 Pages

Piperazine is one of the most frequently found scaffolds in small-molecule FDA-approved drugs. In this study, a general approach to the synthesis of piperazines bearing substituents at carbon and nitrogen atoms utilizing primary amines and nitrosoalk...

(This article belongs to the Section Molecular Pharmacology)
  • Article
  • Open Access
6 Citations
4,687 Views
13 Pages

Iridium-Catalyzed and pH-Dependent Reductions of Nitroalkenes to Ketones

  • Tingting Wang,
  • Changmeng Liu,
  • Dong Xu,
  • Jiaxi Xu and
  • Zhanhui Yang

13 November 2022

A highly chemoselective conversion of α,β-disubstituted nitroalkenes to ketones is developed. An acid-compatible iridium catalyst serves as the key to the conversion. At a 2500 S/C ratio, nitroalkenes were readily converted to ketones in u...

(This article belongs to the Special Issue Catalytic Green Reductions and Oxidations)