A Highly Regioselective Palladium-Catalyzed O,S Rearrangement of Cyclic Thiocarbonates
作者:William Mahy、Sinéad Cabezas-Hayes、Gabriele Kociok-Köhn、Christopher G. Frost
DOI:10.1002/ejoc.201701181
日期:2017.11.24
This work describes an operationally simple catalytic synthesis of cyclic S-thiocarbonates with predictable regioselectivity in good yields. The reaction utilizes substrates derived from ubiquitous 1,2-diols in an atom economical intramolecular rearrangement, catalysed by an inexpensive and simple catalyst–ligand system. A crystal structure is presented that clearly confirms the regioselectivity of
METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUND AND FLUORINATING REAGENT
申请人:DAIKIN INDUSTRIES, LTD.
公开号:US20150315136A1
公开(公告)日:2015-11-05
Object: An object of the present invention is to provide a method for producing, with a high yield, a fluorinated organic compound, the fluorinated organic compound having not been produced with a sufficient yield by a conventional method for producing a fluorinated organic compound using a fluorinating agent containing IF
5
-pyridine-HF alone. Another object of the present invention is to provide a fluorinating reagent.
Means for achieving the object: A method for producing a fluorinated organic compound comprising step A of fluorinating an organic compound by bringing the organic compound into contact with (1) IF
5
-pyridine-HF and (2) at least one additive selected from the group consisting of amine hydrogen fluorides, X
a
F (wherein X
a
represents hydrogen, potassium, sodium, or lithium), oxidizers, and reducing agents.
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%.
Composition, fluorinating reagent, and method for producing fluorinated organic compound
申请人:DAIKIN INDUSTRIES, LTD.
公开号:US11091432B2
公开(公告)日:2021-08-17
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 %.