80493-48-7Relevant academic research and scientific papers
An enantioselective synthesis of (+)-polyoxamic acid via phase-transfer catalytic conjugate addition and asymmetric dihydroxylation
Lee, Yeon-Ju,Park, Yohan,Kim, Mi-Hyun,Jew, Sang-Sup,Park, Hyeung-Geun
supporting information; experimental part, p. 740 - 743 (2011/03/22)
A new enantioselective synthetic method of (+)-polyoxamic acid is reported. (+)-Polyoxamic acid could be obtained in 7 steps with 46% overall yield from diphenylmethyl-glycineimine tert-butyl ester via an enantioselective phase-transfer conjugate addition
Synthesis of chalcogenides using indium intermediates in aqueous media
Galindo, Andréa C.,Oliveira, Juliana M.,Barboza, Maria A. G.,Gon?alves, Simone M. C.,Menezes, Paulo H.
, p. 129 - 140 (2007/10/03)
Selenides and vinylic selenides were synthesized from their corresponding organic halides and alkynes in aqueous media using indium metal.
Synthesis of α-phenylseleno-α,β-unsaturated esters by Wittig-type reactions. Studies on the Diels-Alder reaction
Silveira, Claudio C.,Nunes, Marta R.S.,Wendling, Elson,Braga, Antonio L.
, p. 131 - 136 (2007/10/03)
Ethyl α-phenylseleno-α,β-unsaturated esters were prepared by the reaction of tri-ethyl phosphonoacetate anion and ethoxycarbonyl(phenylselenenyl)methylidene(triphenyl)phosphorane with aliphatic and aromatic aldehydes. The α-phenylseleno unsaturated esters
INSERION REACTIONS OF DIAZO COMPOUNDS WITH SOME SELENIUM(II) ELECTROPHILES
Back, Thomas G.,Kerr, Russell G.
, p. 171 - 182 (2007/10/02)
Benzene- and o-nitrobenzene-selenyl thiocyanate (1 and 2) reacted with diazomethane and several α-diazo esters to afford α-arylseleno isothiocyanates (5a-10a) and the isomeric thiocyanates (6b-8b) as the major and minor products, respectively.Analogous insertion reactions were observed with benzenesulfenyl thiocyanate (3) and benzeneselenenyl selenocyanate (4) to furnish phenylthiomethyl isothiocyanate (11), ethyl α-phenylthioisocyanoacetate (12) and phenylselenomethyl isoselelnocyanate (13), ethyl α-phenylseleno-α-isoselenocyanoacetate (14), respectively.N-(Phenylseleno)phthalimide formed insertion products N-(phenylselenomethyl)phthalimide (16) and ethyl α-phenylseleno-α-phthalimidoacetate (17)with diazomethane and ethyl diazoacetate, but effected elimination to the corresponding vinyl selenides, ethyl α-(phenylseleno)propenoate (18) and ethyl 2-phenylseleno-3-methyl-2-butenoate (19) when treated with diazo esters containing β-hydrogens.Compound 19 was similarly obtained from benzeneselenenyl iodide and the diazo ester.Attempts to effect selenoxide eliminations in compounds 7a-10a were unsuccessful.A new, efficient preparation of 1 from the metathesis of benzeneselenenyl chloride with trimethylsilyl isothiocyanate was developed.
