58198-41-7Relevant academic research and scientific papers
Lanthanide-based coordination polymers as promising heterogeneous catalysts for ring-opening reactions
Kumar, Gulshan,Kumar, Girijesh,Gupta, Rajeev
, p. 21352 - 21361 (2016/03/08)
This work presents the synthesis and structural characterization of Eu3+- and Tb3+-based coordination polymers starting from a Co3+-based metalloligand offering appended arylcarboxylic acid groups. Both coordination polymers function as reusable heterogeneous catalysts for ring-opening reactions utilizing amines, alcohols, thiols, and azides as the nucleophiles. The catalytic results illustrate an excellent control over the regioselectivity whereas a filtration test and mechanistic studies substantiate Lewis-acid catalyzed activation of the epoxide during the reaction.
Chemical oxidation studies of β-hydroxysulfides with tris(4-bromophenyl)aminium hexachloroantimonate: Diastereoselective sulfoxide obtaining and pinacol-type rearrangement
Donnici, Claudio Luis,Guimaraes, Sibele,De Melo, Angelita Cristine
, p. 1489 - 1497 (2007/10/03)
The chemical oxidation of some β-hydroxy-sulfides in the presence of tris(4-bromo-phenyl)aminium hexachloroantimonate (TBPA) is reported. The oxidation of 2-ethylsulfanyl-cyclohexan-1-ol (cis- and trans-) resulted the corresponding sulfoxides with good diastereoselectivity (d.e. 50%) and for 2-methyl-2-ethylsulfanyl-cyclohexan-1-ol and 2-ethylsulfanyl-1,2-diphenyl-ethanol, the corresponding nonsulfanylated ketones (61-75%) and ethyl ethanethiolsulfonate (51-65%) were obtained via oxidative cleavage and pinacol-type rearrangement.
THE CHEMISTRY OF α,ω-MERCAPTOALCOHOLS IN THE PRESENCE OF DIETHOXYTRIPHENYLPHOSPHORANE. TEMEPERATURE DEPENDENCE OF CYCLODEHYDRATIONS AND S-ETHYLATIONS
Robinson, Philip L.,Kelly, Jeffery W.,Slayton, A. Evans
, p. 59 - 70 (2007/10/02)
Diethoxytriphenylphosphorane (DTPP) is easily prepared by oxidative addition of triphenylphosphine with diethyl peroxide.DTPP converts a variety of mercaptoalcohols to cyclic sulfides as well as hydroxythioethers.The temperature dependence (+25 --> -25 deg C) of the product distribution has synthetic petential.
