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Organics, Volume 3, Issue 1

2022 March - 4 articles

Cover Story: 13C NMR spectroscopic investigations were conducted for various amino acid derivatives and peptides. It was observed that 13C NMR chemical shifts of the carbonyl carbons are correlated with the solvent polarities, but the extent depends on the structures. The size of the functional groups and inter- and intra-molecular hydrogen bonding appear to be the major contributors for this tendency. View this paper
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Articles (4)

  • Article
  • Open Access
24 Citations
3,884 Views
18 Pages
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On the Mechanism of the Synthesis of Nitrofunctionalised Δ2-Pyrazolines via [3+2] Cycloaddition Reactions between α-EWG-Activated Nitroethenes and Nitrylimine TAC Systems

  • Agnieszka Fryźlewicz,
  • Aleksandra Olszewska,
  • Karolina Zawadzińska,
  • Przemysław Woliński,
  • Karolina Kula,
  • Agnieszka Kącka-Zych,
  • Agnieszka Łapczuk-Krygier and
  • Radomir Jasiński
Organics2022, 3(1), 59-76;https://doi.org/10.3390/org3010004

1 March 2022

We investigated the reactivity of different substituted nitrylimine-type three atom components (TACs) in [3+2] cycloaddition (32CAs) reactions with electrophilically activated nitroethenes within molecular electron density theory (MEDT). In parallel...

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  • Article
  • Open Access
2 Citations
8,331 Views
21 Pages
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13C NMR Spectroscopic Studies of Intra- and Intermolecular Interactions of Amino Acid Derivatives and Peptide Derivatives in Solutions

  • Yoshikazu Hiraga,
  • Saori Chaki,
  • Yuri Uyama,
  • Ryosuke Hoshide,
  • Takumi Karaki,
  • Daisuke Nagata,
  • Kanji Yoshimoto and
  • Satomi Niwayama
Organics2022, 3(1), 38-58;https://doi.org/10.3390/org3010003

9 February 2022

13C NMR spectroscopic investigations were conducted for various amino acid derivatives and peptides. It was observed that 13C NMR chemical shifts of the carbonyl carbons are correlated with the solvent polarities, but the extent depends on the struct...

Full Article
  • Article
  • Open Access
3 Citations
3,502 Views
16 Pages
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De Novo Synthesis of Bacteriochlorins Bearing Four Trideuteriomethyl Groups

  • Haoyu Jing,
  • Qun Tang,
  • David F. Bocian and
  • Jonathan S. Lindsey
Organics2022, 3(1), 22-37;https://doi.org/10.3390/org3010002

7 February 2022

Site-specific introduction of isotopes in tetrapyrrole macrocycles provides the foundation for probing physicochemical features germane to photosynthetic energy-transduction processes, but has chiefly been done with porphyrins rather than the more bi...

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  • Review
  • Open Access
45 Citations
16,654 Views
21 Pages
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Recent Applications of Pd-Catalyzed Suzuki–Miyaura and Buchwald–Hartwig Couplings in Pharmaceutical Process Chemistry

  • Balaram S. Takale,
  • Fan-Yi Kong and
  • Ruchita R. Thakore
Organics2022, 3(1), 1-21;https://doi.org/10.3390/org3010001

18 January 2022

Cross-coupling reactions have changed the way complex molecules are synthesized. In particular, Suzuki–Miyaura and Buchwald–Hartwig amination reactions have given opportunities to elegantly make pharmaceutical ingredients. Indeed, these r...

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Organics - ISSN 2673-401X
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