80520-06-5Relevant academic research and scientific papers
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
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
PhI- and polymer-supported PhI-catalyzed oxidative conversion of ketones and alcohols to α-tosyloxyketones with m-chloroperbenzoic acid and p-toluenesulfonic acid
Yamamoto, Yukiharu,Kawano, Yuhta,Toy, Patrick H.,Togo, Hideo
, p. 4680 - 4687 (2007/10/03)
Various ketones were converted to the corresponding α-tosyloxyketones with mCPBA and p-toluenesulfonic acid in the presence of a catalytic amount of iodobenzene. Moreover, secondary alcohols were directly converted to the corresponding α-tosyloxyketones using mCPBA and catalytic amounts of iodobenzene and potassium bromide, followed by treatment with p-toluenesulfonic acid in a one-pot manner. Poly(4-iodostyrene) could be also used as a recyclable catalyst for the same α-tosyloxylation of ketone.
Synthesis of 4-n-alkyl-2-amino-3-thiophenecarboxylates
Noe,Buchstaller,Siebert
, p. 833 - 836 (2007/10/03)
A modification of the Gewald reaction is presented, which renders 4-n-alkyl substituted 2-aminothiophene derivatives 9 accessible, which bear no substituent at position 5. The three step procedure involves monotosylation of diols 2, oxidation of the secon
Reaction of Terminal Oxiranes With Arenesulfonic Acid
Ogawa, Kazuo,Ohta, Shunsaku,Okamoto, Masao
, p. 281 - 284 (2007/10/02)
The reaction of oxiranes 1 with arenesulfonic acids under phase transfer catalyst system (water/dichloromethane) or without catalyst (dry dichloromethane) affords regioisomeric arylsulfonyloxy primary and secondary alcohols.The latter is oxidized to 1-arylsulfonyloxy-2-alkanones 5 in good yield.
