Stereocontrolled Synthesis of 13-Substituted Retinoic Acids by Palladium-Catalyzed Coupling Reaction of Alkenyl Stannane with Vinyl Triflate

Synlett ◽  
2001 ◽  
Vol 2001 (06) ◽  
pp. 0800-0802 ◽  
Author(s):  
Akimori Wada ◽  
Kouki Fukunaga ◽  
Masayoshi Ito
ChemInform ◽  
2001 ◽  
Vol 32 (5) ◽  
pp. no-no
Author(s):  
Akimori Wada ◽  
Yuki Nomoto ◽  
Kenji Tano ◽  
Eriko Yamashita ◽  
Masayoshi Ito

2000 ◽  
Vol 48 (9) ◽  
pp. 1391-1394 ◽  
Author(s):  
Akimori WADA ◽  
Yuki NOMOTO ◽  
Kenji TANO ◽  
Eriko YAMASHITA ◽  
Masayoshi ITO

Synlett ◽  
2001 ◽  
Vol 2001 (11) ◽  
pp. 1759-1762 ◽  
Author(s):  
Akimori Wada ◽  
Govindarajuru Babu ◽  
Sayaka Shimomoto ◽  
Masayoshi Ito

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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