专利号:US-5998595-A 优先权日:1996-11-05 标题:Azidohalogenobenzyl derivatives, sugar compounds and protection of hydroxy groups 发明人:KUSUMOTO SHOICHI; FUKASE KOICHI 权利人:WAKO PURE CHEM IND LTD 摘要:Azidohalogenobenzyl derivatives of the formula (I) ##STR1## wherein A is a halogen atom, B is a halogen atom or a hydrogen atom, and X is a group reactive with a hydroxy group, methods of protecting hydroxy group(s) using said derivatives, and sugar compounds wherein a hydrogen atom of at least one hydroxy group is substituted by an azidohalogenobenzyl group. According to the present invention, there are provided novel derivatives capable of introducing a group into a compound having hydroxy group(s), which group is useful as a stable hydroxy-protecting group even in solid phase synthesis for the purpose of the extension of sugar chain under continuous acidic conditions and of being removed under mild conditions; sugar compounds protected by using said derivatives; and methods of protecting hydroxy group(s) using said derivatives.
专利号:US-10442886-B2 优先权日:2014-11-18 标题 :Mechanochromic luminescent material, mechanochromic resin obtained by crosslinking mechanochromic luminescent material, method for producing mechanochromic luminescent material, and method for producing mechanochromic 发明人:YABU HIROSHI; SAITO YUTA; SAITO SHOHEI; YAMAGUCHI SHIGEHIRO; NOBUSUE Shunpei 权利人:JAPAN SCIENCE & TECH AGENCY 摘要:Provided is a mechanochromic resin by which a stress applied to a material can be visualized in real time, and a mechanochromic luminescent material that is used in the synthesis of the mechanochromic resin. Stress can be visualized in real time by means of a mechanochromic luminescent material represented by formula (1) or formula (2) and a mechanochromic resin obtained by crosslinking the mechanochromic luminescent material. [Chemical formula 1] (In the formula, Y 1 and Y 2 each denote a substituent group that inhibits aggregation of the mechanochromic luminescent material represented by formula (1), and Y 1 and Y 2 may be same as or different from each other. Z 1 and Z 2 each denote a polymerizable group, and may be same as or different from each other.) [Chemical formula 2] (In the formula, Y 1 and Y 2 each denote a substituent group that inhibits aggregation of the mechanochromic luminescent material represented by formula (2), and Y 1 and Y 2 may be same as or different from each other. Z 1 and Z 2 each denote a polymerizable group, and may be same as or different from each other).
专利号:CN-116444382-A 优先权日:2022-01-07 标题:Synthesis method of 4-iodo-2-methylaniline