Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Kan Wakamatsu"'
Autor:
Hikaru Watanabe, Takuma Sato, Michiki Sumita, Mei Shiroyama, Daichi Sugawara, Tomoki Tokuyama, Yasuhiro Okuda, Kan Wakamatsu, Haruo Akashi, Akihiro Orita
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 79, Iss 8, Pp 757-761 (2023)
The dehydrobenzannulene (E,E)-1,3-(3,4:9,10-dibenzododeca-1,11-diene-5,7-diyne-1,12-diyl)benzene, C26H16, was successfully synthesized via photocatalyst-assisted stereoselective reductive desulfonylation of 1,3-bis{1-phenylsulfonyl-2-[2-(trimethylsil
Externí odkaz:
https://doaj.org/article/bc33c66796a74c83864eda0b4d58886c
Autor:
Eietsu Hasegawa, Naoki Yoshioka, Tsukasa Tanaka, Taisei Nakaminato, Kazuki Oomori, Tadaaki Ikoma, Hajime Iwamoto, Kan Wakamatsu
Publikováno v:
ACS Omega, Vol 5, Iss 13, Pp 7651-7665 (2020)
Externí odkaz:
https://doaj.org/article/50d45ad6141444d2bb4d80f39c03d416
Autor:
Hikaru Watanabe, Takuma Sato, Michiki Sumita, Mei Shiroyama, Daichi Sugawara, Tomoki Tokuyama, Yasuhiro Okuda, Kan Wakamatsu, Akihiro Orita
Publikováno v:
Bulletin of the Chemical Society of Japan; Feb2024, Vol. 97 Issue 2, p1-19, 19p
Autor:
Kazuki Nakajima, Ryota Edagawa, Kento Ekuni, Hikaru Watanabe, Yuta Akagi, Yasuhiro Okuda, Akihiro Orita, Kan Wakamatsu
Publikováno v:
Synthesis. 53:2984-2994
The Sonogashira coupling of 1,3,6,8-tetrabromopyrene with 4-[(–)-β-citronellyloxy]phenylethyne was employed to synthesize 1,3,6,8-tetra[4-(citronellyloxy)phenylethynyl]pyrene. The pyrene derivative catalyzed the reductive desulfonylation of etheny
Autor:
Tsukasa Tanaka, Kan Wakamatsu, Shyota Nakamura, Kazuki Oomori, Hajime Iwamoto, Eietsu Hasegawa
Publikováno v:
The Journal of Organic Chemistry. 86:2556-2569
Desulfonylation reactions of α-sulfonylketones promoted by photoinduced electron transfer with 2-hydroxyarylbenzimidazolines (BIH-ArOH) were investigated. Under aerobic conditions, photoexcited 2-hydroxynaphthylbenzimidazoline (BIH-NapOH) promotes c
Publikováno v:
Chemistry – A European Journal. 27:4548-4552
Polycyclic aromatic compounds consisting of four or five fused anthracene units were synthesized by PtCl2 -catalyzed cycloisomerization as novel long expanded helicenes. These compounds have helical structures with significant stacking of the termina
Publikováno v:
ChemPlusChem. 87(No. 1)
The title aromatic compound comprising four anthracene units was synthesized by the McMurry coupling of di(1-anthryl) ketone as a hydrogenated product in 65 % yield. The molecule forms a C2 symmetric structure with the ap conformation about the C(sp3
Autor:
Mai Takemoto, Hikaru Watanabe, Kazumasa Adachi, Yasuhiro Okuda, Aki Dakegata, Ilhyong Ryu, Akihiro Orita, Kan Wakamatsu, Takahide Fukuyama
Publikováno v:
Chemistry Letters. 49:409-412
Diarylethenes were obtained from the corresponding ethenyl sulfones by photocatalyzed desulfonylation using UV or blue LEDs. When perylene and i-Pr2NEt were used as a photocatalyst and a sacrificin...
Autor:
Tsukasa Tanaka, Kan Wakamatsu, Kazuki Oomori, Taisei Nakaminato, Naoki Yoshioka, Hajime Iwamoto, Tadaaki Ikoma, Eietsu Hasegawa
Publikováno v:
ACS Omega
ACS Omega, Vol 5, Iss 13, Pp 7651-7665 (2020)
ACS Omega, Vol 5, Iss 13, Pp 7651-7665 (2020)
A debrominative oxygenation protocol has been developed for the conversion of α-bromo-α,α-dialkyl-substituted carbonyl compounds to their corresponding α-hydroxy analogues. For example, stirring a solution of α-bromoisobutyrophenone and 2-aryl-1
Autor:
Kan Wakamatsu, Shinji Toyota
Publikováno v:
Bulletin of the Chemical Society of Japan. 93:65-75
The structures and conformation of anthracene-2,7-diyl cyclic oligomers were investigated by DFT calculations. The energy minimum and transition state structures of the oligomers ranging from penta...