92554-40-0Relevant academic research and scientific papers
Regioselective three-component synthesis of 1,2-diarylindoles from cyclohexanones, α-hydroxyketones and anilines under transition-metal-free conditions
Li, Cheng,Xie, Yanjun,Xiao, Fuhong,Huang, Huawen,Deng, Guo-Jun
supporting information, p. 4079 - 4082 (2019/04/25)
A facile method for the one-pot synthesis of 1,2-diarylindoles under transition-metal-free conditions is described. Cyclohexanones were used as the aryl sources via the dehydrogenative aromatization process. One C-C and two C-N bonds were selectively formed via a domino reaction. This protocol provides a convenient approach for the construction of valuable bioactive 1,2-diarylindoles from readily available cyclohexanones, α-hydroxyketones and anilines.
Novel α-tosyloxylation of ketones catalyzed by the in situ generated hypoiodous acid from alkyl iodide
Zhang, Bijun,Han, Liuquan,Hu, Jiantao,Yan, Jie
, p. 5851 - 5854 (2015/01/16)
Using a catalytic amount of 1-iodopropane, a novel and efficient procedure has been developed for direct preparation of α-tosyloxyketones from ketones. In this protocol, 1-iodopropane is first oxidized into iodosylpropane, which decomposes to form the key
Effective α-tosyloxylation of ketones using 1,1,1-trifluoro-2-iodoethane as catalyst
Zhang, Bijun,Han, Liuquan,Hu, Jiantao,Yan, Jie
supporting information, p. 3264 - 3270 (2015/10/06)
With 1,1,1-trifluoro-2-iodoethane as catalyst, a novel and efficient procedure has been developed for preparation of α-tosyloxyketones from ketones. In this protocol, 1,1,1-trifluoro-2-iodoethane is first oxidized by m-chloroperbenzoic acid to a hypervale
A novel one-pot method for αα-tosyloxylation of ketones using a catalytic amount of ammonium iodide
Hu, Jiantao,Zhu, Min,Xu, Yuan,Yan, Jie
experimental part, p. 1226 - 1232 (2012/05/20)
A novel one-pot procedure was designed for the preparation of various α-tosyloxy ketones in good yields by the reaction of ketones with m-chloroperoxybenzoic acid and p-toluenesulfonic acid monohydrate in the presence of catalytic amounts of ammonium iodi
Iodoarene-mediated α-tosyloxylation of ketones with MCPBA and p-toluenesulfonic acid
Tanaka, Ayumi,Moriyama, Katsuhiko,Togo, Hideo
experimental part, p. 1853 - 1858 (2011/09/16)
Alkyl aryl ketones and dialkyl ketones could be converted into the corresponding α-tosyloxy ketones by the reaction with MCPBA and p-toluenesulfonic acid monohydrate (PTSA ? H2O) in the presence of a catalytic amount of molecular iodine (I
Catalytic, asymmetric, interrupted Feist-Benary reactions of α-tosyloxyacetophenones
Calter, Michael A.,Korotkov, Alexander
supporting information; experimental part, p. 6328 - 6330 (2012/01/11)
A new variant of the Interrupted Feist-Benary (IFB) reaction uses α-tosyloxyacetophenones as electrophiles and proceeds in good yields and excellent enantioselectivities.
Novel preparation of polymer-supported iodobenzene and its synthetic utility as a recyclable reagent with m-chloroperbenzoic acid
Suzuki, Yuhsuku,Togo, Hideo
experimental part, p. 2355 - 2360 (2010/09/18)
Three novel polymer-supported iodobenzene compounds A0, A 6, and A10 were prepared from the reaction of commercially available cross-linked poly(p-chloromethyl)styrene with m-iodobenzylalcohol, 6-(m-iodobenzyloxy)-1-hexanol, and 10-(m-iodobenzyloxy)-1-decanol. Their catalytic reactivity and reusability for the oxidative α-tosyloxylation of ketones and the cyclization of N-methoxy-2-arylethanesulfonamides in the presence of m-chloroperbenzoic acid (mCPBA) were confirmed to provide -tosyloxyketones and N-methoxy-3,4-dihydro-2,1-benzothiazine-2,2-dioxides, respectively, in good yields. Georg Thieme Verlag Stuttgart · New York.
α-Tosyloxylation of ketones with ion-supported[hydroxy(tosyloxy)iodo] benzene
Su, Feng,Zhang, Jizhen,Jin, Guangyu,Qiu, Tao,Zhao, Dejian,Jia, Hongbin
experimental part, p. 741 - 744 (2010/03/24)
A new room-temperature ionic liquid (RTIL) supported [hydroxy(tosyloxy) iodo]benzene (ion-supported HTIB) reagent was synthesised by three kinds of effective methods in high yields, which combined the advantages of ionic liquids and the hypervalent iodine
4-MeC6H4I-mediated efficient -tosyloxylation of ketones with oxone and p- toluenesulfonic acid in acetonitrile
Tanaka, Ayumi,Togo, Hideo
experimental part, p. 3360 - 3364 (2010/03/03)
Various alkyl aryl ketones, dialkyl ketones, and cycloheptanone were efficiently converted into the corresponding -tosyl-oxy ketones in good yields by using Oxone and p-toluenesulfonic acid monohydrate in the presence of p-iodotoluene in aceton
Convenient synthesis of symmetrical diketosulfides from enolizable ketones using [hydroxy(tosyloxy)iodo]benzene and Na2S·9H20
Karade, Nandkishor N.,Tiwari, Girdharilal B.,Gampawar, Sumit V.,Shinde, Sandeep V.
experimental part, p. 172 - 176 (2009/09/30)
An efficient method for the preparation of symmetrical diketosulfides of the type ArCOCH2SCH2COAr has been developed from the reaction of [hydroxy(tosyloxy)iodo]benzene with various acetophenones, followed by treatment with Na2
