Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Mohamed S. H. SALEM"'
Autor:
Md. Imrul Khalid, Mohamed S. H. Salem, Makoto Sako, Masaru Kondo, Hiroaki Sasai, Shinobu Takizawa
Publikováno v:
Communications Chemistry, Vol 5, Iss 1, Pp 1-7 (2022)
Heterodehydrohelicenes exhibit attractive chiroptical properties, but their direct construction by asymmetric synthesis remains very challenging. Here, the authors report the electrochemical sequential synthesis of azaoxadehydro[7]helicenes from aren
Externí odkaz:
https://doaj.org/article/5cb70e2b07614dd9ab0a0d9542d1beba
Autor:
Masaru Kondo, H. D. P. Wathsala, Mohamed S. H. Salem, Kazunori Ishikawa, Satoshi Hara, Takayuki Takaai, Takashi Washio, Hiroaki Sasai, Shinobu Takizawa
Publikováno v:
Communications Chemistry, Vol 5, Iss 1, Pp 1-9 (2022)
Data-driven methodology plays an important role in the rapid identification of appropriate chemical conditions, however, optimization of multiple variables in the flow reaction remains challenging. Here, the authors report a Bayesian optimization-ass
Externí odkaz:
https://doaj.org/article/dd7072b50b7f4776870e6bf1a521825f
Publikováno v:
Molecules, Vol 29, Iss 2, p 296 (2024)
Dehydrohelicene-based molecules stand out as highly promising scaffolds and captivating chiroptical materials, characterized by their unique chirality. Their quasi-helical π-conjugated molecular architecture, featuring successively ortho-annulated a
Externí odkaz:
https://doaj.org/article/a6e57efa21554f6482ecdebaf220f678
Autor:
Mohamed S. H. SALEM, Rubal SHARMA, Md. Imrul KHALID, Meghna SASI, Ryo AMASAKI, Yoshitane IMAI, Mitsuhiro ARISAWA, Shinobu TAKIZAWA
Publikováno v:
Electrochemistry, Vol 91, Iss 11, Pp 112015-112015 (2023)
The pursuit of chiral nanographenes with robust chiral stability and good chiroptical responses is of great interest for material-based applications. However, the most reported preparation processes involve intricate synthetic pathways and harsh cond
Externí odkaz:
https://doaj.org/article/e65bb4475e334b4b897c35b7275a3194
Autor:
Mohamed S. H. Salem, Shinobu Takizawa
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
Anionic salicylimine-based cobalt (III) complexes featuring chiral ligands derived from isoleucine amino acids were used as efficient bifunctional phase-transfer catalysts for electrophilic iodination of enol ethers. The Brønsted acids of these comp
Externí odkaz:
https://doaj.org/article/1fbef2e2366a497999c1226360956a59
Publikováno v:
Molecules, Vol 27, Iss 24, p 9068 (2022)
A novel double aza-oxa[7]helicene was synthesized from the commercially available N1,N4-di(naphthalen-2-yl)benzene-1,4-diamine and p-benzoquinone in two steps. Combining the acid-mediated annulation with the electrochemical sequential reaction (oxida
Externí odkaz:
https://doaj.org/article/de77ed07dde54c44836c4581a822bc49
Autor:
Mohamed S. H. Salem, Md. Imrul Khalid, Makoto Sako, Keigo Higashida, Charlie Lacroix, Masaru Kondo, Ryo Takishima, Taisei Taniguchi, Masahiro Miura, Giang Vo‐Thanh, Hiroaki Sasai, Shinobu Takizawa
Publikováno v:
Advanced Synthesis & Catalysis. 365:373-380
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34794e72c3f4dbaf90ab4220bda1a72e
https://doi.org/10.1002/adsc.202201262
https://doi.org/10.1002/adsc.202201262
Autor:
Makoto Sako, Kyohei Kanomata, Mohamed S. H. Salem, Tomohiro Furukawa, Hiroaki Sasai, Shinobu Takizawa
Publikováno v:
Organic Chemistry Frontiers. 9:2187-2192
C(aryl)–P bond cleavage via addition of phosphine to alkynyl ester in the presence of water.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fab685d7d8dac966195902ccda377d7a
https://doi.org/10.1039/d2qo00028h
https://doi.org/10.1039/d2qo00028h
Autor:
Masayuki, Kirihara, Riho, Nakamura, Kana, Nakakura, Kazuki, Tujimoto, Mohamed S H, Salem, Takeyuki, Suzuki, Shinobu, Takizawa
Publikováno v:
Organicbiomolecular chemistry. 20(33)
A diethylaminosulfur trifluoride (DAST)-mediated ring-opening reaction of cyclopropyl silyl ethers in nitriles produced allylic amides in moderate to good yields (up to 87%). Time course studies using ReactIR and O-isotopic labeling mechanistic studi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2432ffb7508314165002ae61be76cf11
https://pubmed.ncbi.nlm.nih.gov/35900043
https://pubmed.ncbi.nlm.nih.gov/35900043
Autor:
Ganesh Tatya Kamble, Shinobu Takizawa, Tsukasa Abe, Makoto Sako, Hanseok Park, Hiroaki Sasai, Mohamed S. H. Salem
Publikováno v:
Chemistry Letters. 50:1755-1757
Enantioselective oxidative couplings of 4-hydroxycarbazoles using a chiral dinuclear vanadium(V) complex have been achieved for the first time. Under the mild reaction conditions, the corresponding...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::136ac7201a801f1644b2f2c6c34571d6
https://doi.org/10.1246/cl.210367
https://doi.org/10.1246/cl.210367