Spirobenzopyrans with carboxylic group were successfully supported by polyethylene glycols in the presence of DCC from the derivatives of indolinospirobenzopyrans and polyethylene glycols.
采用DCC缩合的方法,将吲哚啉螺苯并吡喃的衍生物和聚乙二醇相缩合,以聚乙二醇末端的羟基和吲哚啉螺苯并吡喃衍生物的羧基为反应活性基团,实现了带有羧基的螺吡喃类光致变色化合物支载到了聚乙二醇两端。
? 5(psubstituted styryl) salicylaldehyde derivative (Ⅳ) was synthesized by PTC Witting reaction and then the title compound 6′substituted styryl indoline spirobenzopyran (Ⅴ) was prepared through condensation of the obtained Fisher base with the designed salicylaldehyde.
初步考察螺吡喃单体在各种溶剂中的光致变色行为，结果表明，题示化合物（Ⅴ）在乙醇溶液中有明显光致变色性质。
The absorption spectra of spirobenzopyran 6-nitroBIPS doped polystyrene thin film with and without UV irradiation were measured.
测量了螺吡喃 1',3',3' trimethylindolino 6 nitrospirobenzopyran(6 nitroBIPS)掺杂聚苯乙烯薄膜在紫外光抽运前后的吸收光谱 ,利用其吸收光谱的显著改变 ,对 5 90nm探测光的全光调制特性进行了研究。
Synthesis and Photochromic Behavior of Spiropyran Dyes;
一种含螺吡喃和肉桂酸酯双光功能基团的光致变色染料的合成与性能
Photochromic and XPS Study of Spiropyran Films Grown by Vacuum Deposition;
真空蒸发沉积18烷基取代螺吡喃薄膜的光致变色及光电子谱研究
Study on the Novel Photochromic Spiropyran Dyes with Functional Groups and Their Applications;
含功能基团的螺吡喃化合物的合成与性能研究
Synthesis and Research of Their Properties of Photochromic Compounds Spiropyrans;
光致变色化合物螺吡喃的合成及性能研究
Study on the Novel Photochromic Spiropyran Dyes with Functional Groups and Their Applications;
含功能基团的螺吡喃化合物的合成与性能研究
Preparation and Photochromism of Copolymers Containing Spiropyran and Spirooxazine Compounds;
含螺吡喃、螺噁嗪类基团高分子聚合物的制备和光致变色性质研究
The Study on Photochromic and Photoswichable Fluorescent Nanoparticles Based on Spiropyran;
螺吡喃衍生物的光致变色性能和光致荧光开关纳米粒子的研究
Synthesis and Properties of Novel Photochromic Spiropyrans Having a Long Alkyl Side Chain;
新型长链螺吡喃类光致变色化合物的合成及其性质研究
Synthesis of Photochromic Indolinspirobenzopyran;
光致变色化合物吲哚啉螺苯并吡喃的合成
Synthesis of 1,3,3,5-tetramethyl-6-nitro-indoline spiroben-zopyrans
1,3,3,5-四甲基-6-硝基吲哚啉螺苯并吡喃的合成
Such a helerocycle is found in pyrylium salts.
吡喃盐就是这类的杂环。
Asymmetric Total Synthesis of Benzopyrans and Dibenzopyrans Natural Products;
苯并吡喃及二苯并吡喃类天然产物的手性全合成
Such is the case in pyrrole, thiophene, and furan.
吡咯，噻酚和呋喃的情况就是这样。
Pyran is not aromatic, but the phrylium ion is.
吡喃不是芳香的，但眬英嗡离子是。
The Preparation of Pyrrole from Furan and Ammonia in the Presence of Water Vapor;
水蒸气存在下呋喃与氨反应制备吡咯
Syntheis of 2,5-Diphenyl Furan Dhiophene and Pyrrole Derivatives
2,5-二苯基呋喃、噻吩、吡咯衍生物的合成
New Synthetic Method for 4-Methoxy-7H-Furo[3,2-g] benzopyran-7-one
4-甲氧基-7H-呋喃[3,2-g][1]苯并吡喃-7-酮制备的新方法
Synthesis and characterization of glycosyl esters of cyclopropanecarboxylic acid
(呋喃、吡喃)糖基环丙烷甲酸酯类化合物的合成和结构确证
In guaran, about one-half of the D-mannopyranosyl main-chain units contain a D-galactopyranosyl side chain.
在瓜拉那中约一半D-吡喃甘露糖主链的单元含一个D-吡喃半乳糖侧链。
Synthesis and Activities of 2,3a-Dihydro-chromeno-[4,3-c]pyrazol-3-one Derivatives
2,3a-二氢-苯并吡喃[4,3-c]吡唑-3-酮类衍生物的合成及其活性
Quantum Chemical Study of the Thermolysis of Chroman
苯并二氢吡喃热分解反应的量子化学研究