31167-92-7Relevant academic research and scientific papers
Reactions of mono- and bicyclic enol ethers with the I2- hydroperoxide system
Terent'Ev, Alexander O.,Zdvizhkov, Alexander T.,Kulakova, Alena N.,Novikov, Roman A.,Arzumanyan, Ashot V.,Nikishin, Gennady I.
, p. 7579 - 7587 (2014)
Reactions of mono- and bicyclic enol ethers with I2-H 2O2, I2-ButOOH, and I 2-tetrahydropyranyl hydroperoxide systems have been studied. It was shown that the reaction pathway depends on th
MOLECULAR WEIGHT CONTROLLING AGENT FOR RADICAL POLYMERIZATION, METHOD FOR PRODUCING POLYMER USING SAME, AND POLYMER
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Paragraph 0141-0142, (2021/03/13)
The present invention's purpose is to provide: a molecular-weight controlling agent for radical polymerization which enables controlled radical polymerization of a water-soluble monomer in an aqueous medium; a method for producing a polymer of a water-soluble vinyl monomer using the same; and a water-soluble vinyl monomer polymer. The present invention provides a molecular-weight controlling agent for radical polymerization characterized in that the agent comprises, as its active ingredient, an iodine compound represented by formula (1) and in that the solubility of the active ingredient in water is 0.5 weight % or more at 20° C. In the formula, R1 is —COOX, —CONR4R5, an aromatic group or a cyano group, X is a hydrogen atom, an aliphatic group, an alkali metal, an alkaline earth metal, an organic ammonium or an ammonium, and R2, R3, R4 and R5 are each independently a hydrogen atom, an aromatic group or an aliphatic group.
Total synthesis of (+)-brasilenyne. Application of an intramolecular silicon-assisted cross-coupling reaction
Denmark, Scott E.,Yang, Shyh-Ming
, p. 12432 - 12440 (2007/10/03)
The first enantioselective total synthesis of (+)-brasilenyne (1) has been achieved in 19 linear steps, with 5.1% overall yield from L-(S)-malic acid. The construction of the oxonin core containing a 1,3-cis, cis diene unit was accomplished with a tandem ring-closing metathesis/silicon-assisted intramolecular cross-coupling reaction. In addition, a key propargylic stereogenic center was created through a novel, highly diastereoselective ring opening of a 1,3-dioxolanone promoted by TiCl4. This reaction proceeded through an oxocarbenium ion intermediate and the asymmetric induction was fully controlled by L-malic acid residue. The C(8) stereogenic center was set by a reagent-controlled asymmetric allylboration.
Syntheses of α-Iodocarbonyl Compounds Using Bis(sym-collidine)Iodine(I) Tetrafluoroborate/Dimethyl Sulfoxide
Evans, Robert D.,Schauble, J. Herman
, p. 727 - 730 (2007/10/02)
I(1+)(Collidine)2BF4(1-)/DMSO has been found to be a convenient reagent for the direct conversion of alkenes to α-iodocarbonyl compounds.Using conformationally biased alkenes, the reactions proceed stetreospecifically giving axial iodoketones.Application of the reagent in reactions with unsaturated carbohydrates provides a unique method for the conversion of certain glycals to their corresponding α-iodo-α,β-unsaturated lactones.
