Palladium-catalyzed dehydrogenative coupling of cyclic enones with thiophenes: a rapid access to β-heteroarylated cyclic enones

2018 ◽  
Vol 54 (29) ◽  
pp. 3668-3671 ◽  
Author(s):  
Zhen-Kang Wen ◽  
Ting-Ting Song ◽  
Yu-Fang Liu ◽  
Jian-Bin Chao

A dehydrogenative coupling reaction of cyclic enones with thiophenes through palladium-catalyzed C–H functionalization is reported herein. Further molecular transformations of the coupling products to synthetically useful meta-heteroarylated phenols are also demonstrated.

2017 ◽  
Vol 65 (1) ◽  
pp. 117-121 ◽  
Author(s):  
Akira Yada ◽  
Shoki Nishi ◽  
Yuta Sato ◽  
Sakina Ichinoseki ◽  
Masahiro Murakami

2018 ◽  
Vol 16 (33) ◽  
pp. 6123-6132 ◽  
Author(s):  
Vikki N. Shinde ◽  
Shiv Dhiman ◽  
Rangan Krishnan ◽  
Dalip Kumar ◽  
Anil Kumar

Synthesis of imidazopyridine-fused indoles has been developed via one-pot sequential Knoevenagel condensation followed by palladium-catalyzed intramolecular cross-dehydrogenative coupling reaction.


2017 ◽  
Vol 15 (41) ◽  
pp. 8770-8779 ◽  
Author(s):  
Kaili Chen ◽  
Biao Gao ◽  
Yanguo Shang ◽  
Jianyao Du ◽  
Qinlan Gu ◽  
...  

An efficient and applicable I2-catalyzed intramolecular dehydrogenative C–O/C–N coupling reaction has been developed for the first time to provide both benzoxazinones and quinazolinones.


Tetrahedron ◽  
2007 ◽  
Vol 63 (41) ◽  
pp. 10202-10210 ◽  
Author(s):  
Samir Messaoudi ◽  
Davide Audisio ◽  
Jean-Daniel Brion ◽  
Mouâd Alami

ChemInform ◽  
2008 ◽  
Vol 39 (5) ◽  
Author(s):  
Samir Messaoudi ◽  
Davide Audisio ◽  
Jean-Daniel Brion ◽  
Mouad Alami

2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  

<p>Verdazyl-nitroxide diradicals were synthesized using the palladium-catalyzed cross-coupling reaction of the corresponding iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields (up to 82%). The synthesized diradicals were found to be highly thermally stable and have a singlet (D<i>E</i><sub>ST</sub> » -64 cm<sup>–1</sup>) or triplet ground state (D<i>E</i><sub>ST</sub> ³ 25 and 100 cm<sup>–1</sup>), depending on which canonical hydrocarbon diradical type they belong to. Upon crystallization, triplet diradicals form unique one-dimensional (1D) spin <i>S</i> = 1 chains of organic diradicals with intrachain ferromagnetic coupling of <i>J</i>′/<i>k</i><sub>B</sub> from 3 to 6 K.</p>


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