4265-21-8Relevant academic research and scientific papers
Iminyl-radicals by electrochemical decarboxylation of α-imino-oxy acids: construction of indole-fused polycyclics
Wan, Jin-Lin,Cui, Jian-Feng,Zhong, Wei-Qiang,Huang, Jing-Mei
supporting information, p. 10242 - 10245 (2021/10/12)
Iminyl radicals are reactive intermediates that can be used for the construction of various valuable heterocycles. Herein, the electrochemical decarboxylation of α-imino-oxy acids for the generation of iminyl radicals has been accomplished under exogenous-oxidant- and metal-free conditions through the use ofnBu4NBr as a mediator. The resulting iminyl radicals undergo intramolecular cyclization smoothly with the adjacent (hetero)arenes to afford a series of indole-fused polycyclic compounds.
Nickel-Catalyzed Acyl Group Transfer of o-Alkynylphenol Esters Accompanied by C?O Bond Fission for Synthesis of Benzo[b]furan
Doi, Ryohei,Shimizu, Koji,Ikemoto, Yuma,Uchiyama, Masashi,Koshiba, Mikiko,Furukawa, Atsushi,Maenaka, Katsumi,Watanabe, Satoshi,Sato, Yoshihiro
, p. 2086 - 2092 (2021/02/27)
Herein, we report the nickel-catalyzed cascade C?O bond cleavage/cyclization of ortho-alkynylphenyl ester to construct a 3-acylbenzo[b]furan skeleton. As a result of reaction condition screening, the Ni(0)/IAd (1,3-Di(1-adamantyl)imidazole-2-ylidene) system was found to be optimal for catalytic conversion. Interestingly, the reaction exclusively gives 3-acylbenzo[b]furan instead of a decarbonylated product frequently observed in reactions mediated by acyl-nickel species. The catalyst loadings could be reduced to 5–10 mol %. We demonstrated the synthesis of a variety of functionalized 3-acylbenzofuran derivatives. We conducted stoichiometric study of nickel complexes as well as density functional theory (DFT) calculations to support a possible reaction mechanism.
Synthesis and biological evaluation of 3-functionalized 2-phenyl- and 2-alkylbenzo[b]furans as antiproliferative agents against human melanoma cell line
Kwiecień, Halina,Peru?yńska, Magdalena,Stachowicz, Karolina,Piotrowska, Katarzyna,Bujak, Joanna,Kopytko, Patrycja,Dro?dzik, Marek
, (2019/04/29)
The key function of microtubules and mitotic spindle in cell division make them attractive targets in anticancer therapy. In the present study, functionalized in 3 position 2-phenyl- and 2-alkylbenzo[b]furans were synthesized and evaluated as antitumor ag
Cycloaddition of arynes with lodonium ylides: A mild and general route for the synthesis of benzofuran derivatives
Huang, Xiao-Cheng,Liu, Yi-Lin,Liang, Yun,Pi, Shao-Feng,Wang, Feng,Li, Jin-Heng
supporting information; experimental part, p. 1525 - 1528 (2009/04/07)
A mild and general cycloaddition of arynes with iodonium ylides protocol has been developed for the synthesis of benzofurans. In the presence of CsF, ortho-silyl aryltriflates were reacted with iodonium ylides smoothly at room temperature in moderate to good yields.
CONDENSED FURAN DERIVATIVES AS ADENOSINE ANTAGONISTS
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Page 30-31, (2010/02/09)
A novel compound of the following formula (I): wherein Z is a phenyl or pyridyl which condenses to a furan ring; X is CH or N; R1 is hydrogen or optionally substituted lower alkyl; R2 is hydrogen, halogen or lower alkoxy; and R3
