64542-41-2Relevant academic research and scientific papers
Synthesis of 5-Aryl-3(2 H)-furanones Using Intramolecular Cyclization of Sulfonium Salts
Inagaki, Sho,Saito, Kai,Suto, Soichiro,Aihara, Hiromi,Sugawara, Aoi,Tamura, Satoru,Kawano, Tomikazu
, p. 13834 - 13846 (2018/11/23)
Base-induced intramolecular cyclization of novel (4-aryl-2,4-dioxobutyl)methylphenylsulfonium salts prepared from the commercially available 1-arylethanone by a cost-effective process is described in this paper. The reaction was completed within 10 min to produce a family of 2-unsubstituted 5-aryl-3(2H)-furanones in excellent yield. This procedure is simple, and can be carried out under mild conditions and an ambient atmosphere.
A synthetic study of chiral α-hydroxy-H-phosphinates based on proline catalysis
Yao, Qiuli,Yuan, Chengye
, p. 6080 - 6088 (2013/06/26)
A highly enantioselective synthesis of α-hydroxyphosphinates was achieved based on the L-proline-catalyzed aldol reaction of α- acylphosphinates and acetone. Due to the preexisting chirality at the phosphorus center, mixtures of two diastereomers of the α-hydroxyphosphinates were obtained in moderate to good yields, with simultaneously high enantioselectivity for both diastereomers. The products could be converted into α-hydroxy-H-phosphinates with satisfactory yields. Furthermore, an unprecedented oxidation-reduction reaction of the α-hydroxyphosphinates or α-hydroxy-H-phosphinates to form phosphonates was observed, and the mechanism involved in such a chemical transformation is discussed. Copyright
Regioselective synthesis of 4-chlorophenols, 10-chloro-7-hydroxy-6H-benzo[c]chromen-6-ones, and 4-chloro-1-hydroxy-9H-fluoren-9-ones based on [3+3] cyclizations of 1,3-bis(silyloxy)-1,3-dienes with 2-chloro-3-silyloxy-2-en-1-ones
Yawer, Mirza Arfan,Hussain, Ibrar,Reim, Stefanie,Ahmed, Zafar,Ullah, Ehsan,Iqbal, Inam,Fischer, Christine,Reinke, Helmut,G?rls, Helmar,Langer, Peter
, p. 12562 - 12575 (2008/03/14)
A variety of 4-chlorophenols, 10-chloro-7-hydroxy-6H-benzo[c]chromen-6-ones, and 4-chloro-1-hydroxy-9H-fluoren-9-ones were prepared by formal [3+3] cyclizations of 1,3-bis(silyloxy)-1,3-dienes with 2-chloro-3-(silyloxy)alk-2-en-1-ones.
