4683-50-5Relevant academic research and scientific papers
Catalyst-controlled regiodivergent vinylogous aza-Morita–Baylis–Hillman reactions
Hyakutake, Ryuichi,Gondo, Naruhiro,Ueda, Yoshihiro,Yoshimura, Tomoyuki,Furuta, Takumi,Kawabata, Takeo
supporting information, p. 1321 - 1324 (2018/03/29)
Regiodivergent vinylogous aza-Morita–Baylis–Hillman reactions of 3-vinylcyclopent-2-en-1-one 1 were developed in a catalyst-controlled manner. While treatment of 1 with N-tosylarylaldimines 2 in the presence of DABCO gave the α-adducts as the sole regiois
The discovery of a novel route to highly substituted -tropolones enables expedient entry to the core of the gukulenins
Kats-Kagan, Roman,Herzon, Seth B.
supporting information, p. 2030 - 2033 (2015/04/27)
A simple and general method for the synthesis of highly substituted α-tropolone ethers that allows rapid access to the bis(tropolone) core of the antiproliferative metabolites (-)-gukulenins A and F (3, 4) is described. The reaction proceeds by thermolyti
Ionic liquid supported on magnetic nanoparticles as highly efficient and recyclable catalyst for the synthesis of β-keto enol ethers
Li, Pei-He,Li, Bao-Le,Hu, Hai-Chuan,Zhao, Xiao-Na,Zhang, Zhan-Hui
, p. 118 - 122 (2014/01/17)
A magnetically ionic liquid supported on γ-Fe2O 3 nanocatalyst (AlxCly-IL-SiO 2γ-Fe2O3) was synthesized and evaluated as a recoverable catalyst for the synthesis of β-keto enol ethers. The immobilized catalyst proved to be effective and provided the products in high to excellent yield at room temperature. Moreover, the catalyst could be easily recovered by magnetic separation and recycled for six times without significant loss of its catalytic activity.
ANTI-VIRAL COMPOUNDS
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Page/Page column 181, (2012/06/30)
Compounds effective in inhibiting replication of Hepatitis C virus ("HCV") are described. This invention also relates to processes of making such compounds, compositions comprising such compounds, and methods of using such compounds to treat HCV infection.
Asymmetric synthesis of O-protected acyloins using enoate reductases: Stereochemical control through protecting group modification
Winkler, Christoph K.,Stueckler, Clemens,Mueller, Nicole J.,Pressnitz, Desiree,Faber, Kurt
supporting information; experimental part, p. 6354 - 6358 (2011/02/24)
O-Protected cyclic acyloins were obtained in nonracemic form through asymmetric bioreduction of α,β-unsaturated alkoxy ketones by using 11 different enoate reductases from the "Old Yellow Enzyme" family. The stereochemical outcome of the biotransformation could be switched by variation of the O-protecting group or by the ring size of the substrate, which allows access to both stereoisomers in up to >97 % ee Whereas α-alkoxy enones were readily accepted as substrates, β-analogs were not converted. Overall, α-alkoxy enones represent a novel type of substrate for flavin-dependent ene-reductases. Copyright
Synthetic studies toward sordarin: Building blocks for the terpenoid core and for analogues thereof
Schule, Arnaud,Liang, Huan,Vors, Jean-Pierre,Ciufolini, Marco A.
supporting information; experimental part, p. 1587 - 1597 (2009/07/24)
Avenues to bi- and tricyclic building blocks for the elaboration of sordaricin and its analogues are described. The target molecules were obtained through inter- and intramolecular Diels-Alder reactions of a number of previously unknown cyclopentadienes. Unusual properties of 3-cyanoenones and 1-cyanocyclopen-tadienes have been unveiled and circumvented.
An avenue to the sordarin core adaptable to analog synthesis
Liang, Huan,Schule, Arnaud,Vors, Jean-Pierre,Ciufolini, Marco A.
, p. 4119 - 4122 (2008/02/13)
We describe a synthesis of ketones 3 (X = O-R or CN; Y = H or alkyl), which are useful building blocks for the preparation of analogs of the potent antifungal agent sordarin, 1. Congeners of 1 constructed from 3 should permit detailed SAR investigations of the terpenoid core of the natural product.
An efficient conversion of β-diketones into β-keto enol ethers with P2O5/SiO2 under solvent-free conditions
Cui, Zhen-Shui,Zhang, Zhan-Hui,Liu, Shu-Fen
, p. 390 - 392 (2007/10/03)
P2O5/SiO2 was found to be an efficient reagent for converting cyclic-β-diketones into their corresponding β-keto enol ethers at room temperature under solvent-free conditions.
B(C6F5)3-catalyzed synthesis of β-keto enol ethers from β-diketones
Chandrasekhar,Srinivasa Rao,Ramakrishna Reddy
, p. 1471 - 1473 (2007/10/03)
Efficient and practical synthesis of β-keto enol ethers from diketones catalyzed by B(C6F5)3 at room temperature has been described. Georg Thieme Verlag Stuttgart.
Iodine-catalyzed synthesis of β-keto enol ethers
Bhosale, Rajesh S.,Bhosale, Sidhanath V.,Bhosale, Sheshanath V.,Wang, Tianyu,Zubaidha
, p. 7187 - 7188 (2007/10/03)
The use of iodine, as a catalyst for the synthesis of β-keto enol ethers at room temperature is reported. The use of iodine, as a catalyst for the synthesis of β-keto enol ethers at room temperature is reported.
