COMPOSITION, FLUORINATING REAGENT, AND METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUND
申请人:Daikin Industries, Ltd.
公开号:EP3287431A1
公开(公告)日:2018-02-28
An object of the present invention is to provide a method for producing a fluorinated organic compound with a high yield without using carbon tetrachloride in view of the fact that the production of a fluorinated organic compound with a sufficient yield was impossible for a hitherto-known method that uses a fluorinating agent that contains IF5-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent that is capable of achieving this object. The present invention provides a composition comprising (1) IF5 and (2) an aprotic solvent (with the proviso that carbon tetrachloride is excluded), wherein the aprotic solvent is contained in an amount within a range of 50 mass ppm to 20 mass%.
Acid-catalyzed rearrangement of cyclic allylic monothioketals to exocyclic enol ethers
作者:James P. Hagen
DOI:10.1021/jo00054a041
日期:1993.1
Ito; Kitagawa, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1953, vol. 73, p. 107
作者:Ito、Kitagawa
DOI:——
日期:——
Reaction of thionolactones with zinc enolate: new synthesis of vinylogous carbonates
作者:Hyeon Kyu Lee、Jia Kim、Chwang Siek Pak
DOI:10.1016/s0040-4039(99)01231-9
日期:1999.8
Reaction of various thionolactones, prepared from the lactones and Lawesson's reagent, with methyl bromozinc-acetate afforded the corresponding vinylogous carbonates in good yields under mild conditions. (C) 1999 Elsevier Science Ltd. All rights reserved.
Regio- and Stereoselective 1,3-Oxathiolane Formation in the Reaction of Thiolactones with Optically Active Oxiranes
作者:Changchun Fu、Anthony Linden、Heinz Heimgartner
DOI:10.1002/hlca.200490205
日期:2004.9
either in the presence of SiO2 or under more-drastic conditions with BF3⋅Et2O or SnCl4 (Scheme 8). The results show that spirocyclic 1,3-oxathiolanes can be prepared from thiolactones with oxiranes. The nucleophilic attack of the thiocarbonyl S-atom at the SiO2-activated oxirane ring proceeds with high regio- and stereoselectivity via an SN2-type mechanism.