CAS: 89331-94-2; 6'-(Dibutylamino)-3'-Methyl-2'-(Phenylamino)-3H-Spiro[isobenzofuran-1,9'-Xanthen]-3-One

上下游产品

CAS号41317-15-1 2-甲基-4-甲氧基二苯胺 | CAS号54574-82-2 4-二丁基酮酸（BBA）

2-(2-Anilino-6-Dibutylazaniumylidene-3-Methylxanthen-9-yl)Benzoate 以 Various Solvent(S) 作为反应溶剂,化学反应生成 热(压)敏黑tf-Bl3
参考文献:13C NMR And Electronic Absorption Spectroscopic Studies On The Equilibrium Between The Colorless Lactone And The Colored Zwitterion Forms Of A Fluoran-Based Black Color Former
标题:13C NMR And Electronic Absorption Spectroscopic Studies On The Equilibrium Between The Colorless Lactone And The Colored Zwitterion Forms Of A Fluoran-Based Black Color Former
摘要:荧光素化合物1的无色内酯(l)和有色两性离子(z)形式的平衡关系,已被13C NMR和电子吸收光谱法研究过.荧光素1在非质子溶剂中无明显吸收,而在酚类溶剂中呈现黑色.13C NMR和cdcl3中1的螺环碳信号出现在84.2 Ppm,表明1在非质子溶剂中主要以l形式存在.在50oc的d6苯酚中,1的螺环碳信号转移到较低的磁场,出现在sp2杂化区域(δ = 162.7),表明在d6苯酚中,内酯环中的c(螺环)-O键发生断裂,产生环开环的z形式.l和z之间的平衡关系在很大程度上取决于温度和溶剂.高温和溶剂的位阻,自缔合和分子内螯合作用抑制了溶质(1)与溶剂的相互作用,使l-Z平衡向l倾斜.还估算了酚类溶剂中平衡反应的热力学参数.
DOI:10.1246/bcsj.70.2757

专利信息

专利号:US-7071145-B2
优先权日:2001-09-25
标 题:Thermosensitive recording material, and synthesis method of oligomer composition for the recording material
发明人：MORITA MITSUNOBU; HAYAKAWA KUNIO; TORII MASAFUMI; NARUSE MITSURU
权利人:RICOH KK
摘要:A thermosensitive recording material comprising a thermosensitive layer provided on a substrate, and the thermosensitive layer comprises as main ingredients a leuco dye and a developer to make colored state of said leuco dye when heated, wherein the developer is an oligomer composition obtained from the reaction of a polyvalent isocyanate compound represented by following Formula (I) with an aromatic amine represented by following Formula (II); n nwhere X represents a try- or more-valent group, a represents an integer numeral of 3 or more, b and c represent respectively integer numerals in the range of 0 to 5 and they satisfy a relation of b+c=1 to 5, Z represents hydrogen atom, alkyl group, allyl group or aryl group, and the aryl group may include condensed ling structure thereof, and d represents an integer numeral in the range of 0 to 4. This developer shows excellent reliabilities of both image and background area, and also shows an excellent color-developing characteristics (color developing sensitivity and image density).

专利号:CN-114349765-A
优先权日:2022-01-21
标题:A method for efficient and green synthesis of 2-phenylamino-3-methyl-6-dibutylaminofluoran

专利号:US-2003153460-A1
优先权日:2001-09-25
标 题:Thermosensitive recording material, and synthesis method of oligomer composition for the recording material

专利号:US-2005079976-A1
优先权日:2001-09-25
标题 :Thermosensitive recording material, and synthesis method of oligomer composition for the recording material

专利号:US-2004242414-A1
优先权日:2001-09-25
标题:Thermosensitive recording material, and synthesis method of oligomer compositon for the recording material

专利号:US-6878671-B2
优先权日:2001-09-25
标题 :Thermosensitive recording material, and synthesis method of oligomer composition for the recording material