scholarly journals How hazardous is synthetic chemistry?

1981 ◽  
Vol 58 (6) ◽  
pp. 503
Author(s):  
Terry I. Quickenden
Keyword(s):  
Synthetic Chemistry

Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts

2021 ◽  
Author(s):  
Sujoy Rana ◽  
Jyoti Prasad Biswas ◽  
Sabarni Paul ◽  
Aniruddha Paik ◽  
Debabrata Maiti
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Organic Synthesis ◽  
Present Review ◽  
Synthetic Chemistry ◽  
Late Transition Metals ◽  
Iron Chemistry ◽  
Late Transition

The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.

scholarly journals Oxidative cyclo-rearrangement of helicenes into chiral nanographenes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chengshuo Shen ◽  
Guoli Zhang ◽  
Yongle Ding ◽  
Na Yang ◽  
Fuwei Gan ◽  
...  
Keyword(s):  
Functional Materials ◽  
Optical Devices ◽  
Oxidative Cyclization ◽  
Synthetic Chemistry ◽  
Aromatic Rings ◽  
Cyclization Reactions ◽  
Rearrangement Reaction ◽  
Skeletal Reconstruction ◽  
Gradual Release

AbstractNanographenes are emerging as a distinctive class of functional materials for electronic and optical devices. It is of remarkable significance to enrich the precise synthetic chemistry for these molecules. Herein, we develop a facile strategy to recompose helicenes into chiral nanographenes through a unique oxidative cyclo-rearrangement reaction. Helicenes with 7~9 ortho-fused aromatic rings are firstly oxidized and cyclized, and subsequently rearranged into nanographenes with an unsymmetrical helicoid shape through sequential 1,2-migrations. Such skeletal reconstruction is virtually driven by the gradual release of the strain of the highly distorted helicene skeleton. Importantly, the chirality of the helicene precursor can be integrally inherited by the resulting nanographene. Thus, a series of chiral nanographenes are prepared from a variety of carbohelicenes and heterohelicenes. Moreover, such cyclo-rearrangement reaction can be sequentially or simultaneously associated with conventional oxidative cyclization reactions to ulteriorly enrich the geometry diversity of nanographenes, aiming at innovative properties.

Balancing skeleton and functional groups in total syntheses of complex natural products: a case study of tigliane, daphnane and ingenane diterpenoids

2021 ◽  
Author(s):  
Zhi Liu ◽  
Zhengwei Ding† ◽  
Kai Chen ◽  
Ming Xu ◽  
Tao Yu ◽  
...  
Keyword(s):  
Natural Products ◽  
Functional Groups ◽  
Synthetic Chemistry ◽  
Total Syntheses ◽  
Strategic Balance

The fruitful advancement in synthetic chemistry of the title families of complex diterpenes has stimulated and enjoyed strategic balance between building the skeletons and installing the functional groups.

scholarly journals Halogenases: a palette of emerging opportunities for synthetic biology–synthetic chemistry and C–H functionalisation

2021 ◽  
Author(s):  
Charlotte Crowe ◽  
Samuel Molyneux ◽  
Sunil V. Sharma ◽  
Ying Zhang ◽  
Danai S. Gkotsi ◽  
...  
Keyword(s):  
Synthetic Biology ◽  
Synthetic Chemistry ◽  
Halogen Bonds

An overview of enzymatic tools for generation of carbon–halogen bonds and their use in enabling selective C–H functionalisation through combination of enzyme and chemo catalysis.

Recent Advances on Visible-Light-Promoted Copper Catalysis in Organic Reactions

Synthesis ◽  
2021 ◽  
Author(s):  
Yang Xiong ◽  
Sijia Li ◽  
Haijing Xiao ◽  
Guozhu Zhang
Keyword(s):  
Visible Light ◽  
Copper Complexes ◽  
Rapid Development ◽  
Cost Effective ◽  
Organic Reactions ◽  
Copper Catalysis ◽  
Synthetic Chemistry ◽  
Recent Advances ◽  
Intense Activity

In recent years, visible-light-mediated copper photocatalysis have emerged as an attractive strategy for the diverse constructions of basic bonds in an ecologically benign and cost-effective fashion. The intense activity and increasing work of these areas stimulated the exploit of the distinctive properties of copper photocatalysis and the rapid development and expansion of their applications. In this review, we focus on introducing a series of significant achievements in copper complexes as standalone photocatalysis in organic reactions to make an attempt to exhibit their potential capabilities and high flexibilities in synthetic chemistry.

Microwave-Assisted Domino Cyclization Reactions

2021 ◽  
Vol 08 ◽  
Author(s):  
Yogesh B. Wagh ◽  
Dipak S. Dalal
Keyword(s):  
Microwave Irradiation ◽  
Molecular Diversity ◽  
Medicinal Chemistry ◽  
Complex Molecule ◽  
Complex Compounds ◽  
Synthetic Chemistry ◽  
Domino Reactions ◽  
Cyclization Reactions ◽  
Microwave Assisted ◽  
Synthetic Approaches

Background: Microwave-assisted domino cyclization reactions have attracted great interest for researchers to synthesize complex compounds in shorter times with increase yields. The domino reactions were used in various synthetic approaches and many drug deliveries in medicinal chemistry with microwave assisted approach. Methods: Microwave irradiation has been applied for the various domino reactions. The research related to microwave assisted domino cyclization was reviewed and the important methodologies are collected from 2011-2021. Results: Only those methodologies that involve microwave-assisted domino cyclization reactions during synthesis in a related manner have been reviewed. Along with some recent syntheses that are microwave-assisted regarding new heterocyclic moieties are summarized. Conclusion: Microwave-assisted domino cyclization reactions can be employed to quickly explore and increase molecular diversity in synthetic chemistry. We hope that this review will be helpful to find out complex molecule synthesis by microwave-assisted domino cyclization reactions. This review aimed to explain the applications of microwaves for the domino reactions from 2011-2021. In this respect, the microwave mediated methods help researchers to make helpful studies.

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