scholarly journals Synthesis of bicyclic ethers by a palladium-catalyzed oxidative cyclization-redox relay-π-allyl-Pd cyclization cascade reaction

2019 ◽  
Vol 55 (49) ◽  
pp. 7013-7016 ◽  
Author(s):  
Michaelyn C. Lux ◽  
Melissa L. Boby ◽  
Joshua L. Brooks ◽  
Derek S. Tan
Keyword(s):  
Cascade Reaction ◽  
Oxidative Cyclization ◽  
Cyclization Reactions ◽  
Palladium Catalyzed ◽  
Remote Sites

A redox-relay process links two successive Pd-catalyzed cyclization reactions at remote sites to afford bicyclic ether products from readily available linear diene–diol substrates.

scholarly journals Pt(II)-Decorated Covalent Organic Framework for Photocatalytic Difluoroalkylation and Oxidative Cyclization Reactions

2021 ◽  
Vol 13 (5) ◽  
pp. 6349-6358
Author(s):  
Zainab Almansaf ◽  
Jiyun Hu ◽  
Federica Zanca ◽  
Hamid R. Shahsavari ◽  
Benjamin Kampmeyer ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Cyclization Reactions ◽  
Covalent Organic Framework ◽  
Organic Framework

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.

Synthesis of novel tetrahydroindeno[1,2-b]pyrrolidines via Ugi multicomponent and palladium-catalyzed aerobic oxidative cyclization

2016 ◽  
Vol 46 (6) ◽  
pp. 509-515 ◽  
Author(s):  
Tannya R. Ibarra-Rivera ◽  
Manuel Alejandro Rentería-Gómez ◽  
Eduardo Nieto-Sepúlveda ◽  
Rocío Gámez-Montaño ◽  
Verónica M. Rivas Galindo ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Palladium Catalyzed
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