41916-15-8Relevant academic research and scientific papers
Synthesis of indenes by intramolecular anti-hydroarylation of propargylarenes
Minami, Yasunori,Sakamaki, Takumi,Furuya, Yuki,Hiyama, Tamejiro
, p. 1151 - 1153 (2018)
An intramolecular anti-hydroarylation of propargylarenes proceeds smoothly with a palladium/carboxylic acid catalyst to form indenes straightforwardly. Indenes having various functional groups were easily prepared. The novel synthetic method is applicable to double hydroarylation to form a 1,5-dihydro-s-indacene.
Ir-catalyzed asymmetric hydrogenation of 3-arylindenones for the synthesis of chiral 3-arylindanones
Yan, Jun,Nie, Yu,Gao, Feng,Yuan, Qianjia,Xie, Fang,Zhang, Wanbin
supporting information, (2021/02/27)
An efficient synthesis of chiral 3-arylindanones via iridium-catalyzed asymmetric hydrogenation of 3-arylindenones has been developed. The reaction showed good compatibility with various functional groups, delivering a variety of 3-arylindanones in excellent yields and with good enantioselectivities. The reaction was also carried out on a gram-scale, delivering the product in quantitative yield. In addition, the products can be easily derivatized and transformed into natural products and pharmaceutical agents.
Acylation of Alkenes with the Aid of AlCl3 and 2,6-Dibromopyridine
Tanaka, Shinya,Kunisawa, Tsukasa,Yoshii, Yuji,Hattori, Tetsutaro
supporting information, p. 8509 - 8513 (2019/11/03)
Friedel-Crafts-type acylation of alkenes with acyl chlorides has been successfully conducted with a wide substrate scope by the combined use of AlCl3 and 2,6-dibromopyridine. Trisubstituted alkenes afford allylketones or vinylketones depending on the presence or absence of hydrogen atom(s) at the β-position to the acylation site, while monosubstituted alkenes exclusively afford vinylketones.
Palladium Nanoparticles-Catalyzed Synthesis of Indanone Derivatives via Intramolecular Reductive Heck Reaction
Parveen, Naziya,Sekar, Govindasamy
, p. 4581 - 4595 (2019/09/03)
An efficient protocol for the straightforward, single-step synthesis of 3-aryl-1-indanones from 2′-iodochalcone via reductive Heck reaction using phosphine free, stable and reusable binaphthyl stabilized palladium nanoparticle (Pd-BNP) as a catalyst has been described. An immense array of substrate scope with electron-rich and deficient 2′-iodochalcones have been synthesized. Further derivatization of product indanones have been achieved successfully. The heterogeneous nature of the Pd-BNP has been validated by centrifugation test and mercury poisoning experiment. Pd-BNP has been successfully recycled up to 5 cycles without any significant loss in reaction yield and particle size of nanoparticles, confirmed by TEM analysis. (Figure presented.).
Stereoselective Photodimerization of 3-Arylindenones in Solution and in the Solid State
Uemura, Naohiro,Ishikawa, Hiroki,Tamura, Naoki,Yoshida, Yasushi,Mino, Takashi,Kasashima, Yoshio,Sakamoto, Masami
, p. 2256 - 2262 (2018/02/23)
Photodimerization of 3-arylindenones in solution and in the solid state was examined. Irradiation of 3-arylindenones in benzene exclusively gave C2-symmetric anti-HH cyclobutane dimers in good yields. In contrast, photolysis in the solid state
Enantioselective Intramolecular Reductive Heck Reaction with a Palladium/Monodentate Phosphoramidite Catalyst
Mannathan, Subramaniyan,Raoufmoghaddam, Saeed,Reek, Joost N. H.,de Vries, Johannes G.,Minnaard, Adriaan J.
, p. 551 - 554 (2017/02/26)
A palladium-catalyzed enantioselective reductive Heck reaction of enones using monodentate phosphoramidite ligands is described. α,α,α’,α’-tetraaryl-1,3-dioxolane-4,5-dimethanol (TADDOL)-based phosphoramidites with palladium(II) acetate, and N-methyl dicy
Regioselective quadruple domino aldolization/aldol condensation/Michael/ SNAr-cyclization: Construction of hexacyclic indeno-fused C-nor-D-homo-steroid frameworks
Chanda, Tanmoy,Chowdhury, Sushobhan,Ramulu, B. Janaki,Koley, Suvajit,Jones, Raymond C.F.,Singh, Maya Shankar
, p. 2190 - 2194 (2014/03/21)
An operationally simple and highly atom-economic anionic quadruple domino reaction sequence for the synthesis of hexacyclic indeno-fused naphthalene/quinoline molecules having structural resemblance with the C-nor-D-homo-steroid nucleus has been developed. Promoter and solvent specificity, regioselectivity and mechanistic details were experimentally established. Catalyst concentration and solvent dependent switching of domino steps creating four new C-C bonds are discussed.
Molecular iodine mediated cyclization reactions of 2-(1-alkynyl)benzylic alcohols to substituted indenones
Wang, Chengyu,Yang, Jingyu,Cheng, Xingcan,Li, Ende,Li, Yanzhong
supporting information; experimental part, p. 4402 - 4404 (2012/09/25)
An efficient I2-mediated approach to the synthesis of disubstituted indenones from readily available 2-alkynylbenzyl alcohols in the presence of H2O has been developed. These results are different from the known iodocyclization react
NOVEL POLYBENZOFULVENE DERIVATIVES, SYNTHESIS AND USES THEREOF
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Page/Page column 14, (2010/11/30)
The present invention relates to polymers of formula poly-3 (I), their synthesis, intermediates and uses thereof.
The synthesis, structural characterization and photochemistry of some 3-phenylindenones
Seery, Michael K.,Draper, Sylvia M.,Kelly, John M.,McCabe, Thomas,McMurry, T. Brian H.
, p. 470 - 474 (2007/10/03)
The synthesis of 3-phenylindenone (1a), 6-methoxy-3-phenylindenone (1b), 2-bromo-6-methoxy-3-phenylindenone (1c) and 2-ethoxycarbonyl-6-methoxy-3- phenylindenone (1d) is described using two methods - synthesis via indanone precursors and synthesis via pro
