Abstract We herein described the design, synthesis and application of two recyclable benzyl-type fluorous tags with double fluorous chains. The benzyl-type fluorous tags were prepared in 3 steps from a commercially available fluorous alcohol. The glycosylation of the benzyl-type tags with imidate donors proceeded smoothly to provide the corresponding fluorous-tagged carbohydrates in good to excellent
FLUORINE-CONTAINING URETHANE (METH)ACRYLATE, CURABLE COMPOSITION, AND ANTIREFLECTIVE FILM
申请人:DIC CORPORATION
公开号:US20160208131A1
公开(公告)日:2016-07-21
It is an object of the present invention to provide a urethane (meth)acrylate that enables formation of a cured layer having a low reflectance and excellent excoriation resistance, a curable composition produced by using the same, and an antireflective film. In particular, there is provided a fluorine-containing urethane (meth)acrylate represented by General Formula (I) and having a fluorine atom content ranging from 25 to 60 mass % (where R
1
and R
2
each represent a specific fluorinated alkyl group, R
3
and R
4
each represent a hydrogen atom or a methyl group, A represents a trivalent linking group represented by any of Structural Formulae (A1) to (A4), and X and Y each independently represent a divalent linking group represented by any of Structural Formulae (a) to (c)) [in Structural Formula (c), R5 represents an alkyl group having 1 to 6 carbon atoms].
Rapid synthesis of saccharides by a chemical method is an efficient way to meet the demand for well-defined glycans to probe their biological functions. Herein, a feasible and convenient strategy for saccharide synthesis was established by introducing a photosensitive fluorous tag at the anomeric position of glycosides. The tag was used not only in polytetrafluoroethylene-assisted rapid purification
Fluorine-containing urethane (meth)acrylate, curable composition, and antireflective film
申请人:DIC Corporation
公开号:US10000657B2
公开(公告)日:2018-06-19
It is an object of the present invention to provide a urethane (meth)acrylate that enables formation of a cured layer having a low reflectance and excellent excoriation resistance, a curable composition produced by using the same, and an antireflective film. In particular, there is provided a fluorine-containing urethane (meth)acrylate represented by General Formula (I) and having a fluorine atom content ranging from 25 to 60 mass % (where R1 and R2 each represent a specific fluorinated alkyl group, R3 and R4 each represent a hydrogen atom or a methyl group, A represents a trivalent linking group represented by any of Structural Formulae (A1) to (A4), and X and Y each independently represent a divalent linking group represented by any of Structural Formulae (a) to (c)) [in Structural Formula (c), R5 represents an alkyl group having 1 to 6 carbon atoms].