THERMOCHROMIC COLOR-MEMORIZING COMPOSITION AND THERMOCHROMIC COLOR-MEMORIZING MICROCAPSULE PIGMENT ENCAPSULATING SAME
申请人:THE PILOT INK CO., LTD.
公开号:EP3009493B1
公开(公告)日:2018-01-31
THERMOCHROMIC COLOR-MEMORY COMPOSITION AND THERMOCHROMIC COLOR-MEMORY MICROCAPSULE PIGMENT ENCAPSULATING SAME
申请人:THE PILOT INK CO., LTD.
公开号:US20160130455A1
公开(公告)日:2016-05-12
[Problems] An object of the present invention is to provide: thermochromic color-memory composition which effectively expresses a property of being capable of interchangeably memorizing and retaining colors and is thus applicable to various fields; and thermochromic memory microcapsule pigment encapsulating the same.
[Means for Solution] Provided are thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating the same, the thermochromic color-memory composition comprising: (a) a component composed of an electron-donating color-developing organic compound; (b) a component composed of an electron-accepting compound; and (c) a reaction medium which comprises an ester compound represented by the following Formula (1) and controls color reaction between the components (a) and (b):
(wherein, R represents an alkyl group having 4 to 22 carbon atoms, a cycloalkylalkyl group having 5 to 12 carbon atoms, a cycloalkyl group having 4 to 8 carbon atoms or an alkenyl group having 4 to 22 carbon atoms; X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms or a halogen atom; and n represents 0 or 1).
US9695329B2
申请人:——
公开号:US9695329B2
公开(公告)日:2017-07-04
A Metal-Free Oxidative Esterification of the Benzyl CH Bond
An efficient metal‐free oxidative esterification of benzylCHbonds was developed. Using tetrabutylammonium iodide as catalyst and tert‐butyl hydroperoxide as co‐oxidant, benzylic substrates could react smoothly with various carboxylic acids to give the esters with good to excellent yields. The method was also suitable for the O‐protection of N‐Boc amino acids. The reaction mechanism was primarily