1) crowned spirobenzopyran
冠醚螺吡喃
1.
Four novel crowned spirobenzopyrans containing different substituent at 6 - position (5a - 5d) were prepared by the condensation of monoazabenzo - 15 - C - 5(4) with the spirobenzopyrans(3a - 3d) , which were obtained by aldol - type reaction of the Fischer's base(2) with salicylicaldehyde (1a- 1d) .
结果表明冠醚能稳定螺吡喃开环形式,碱金属离子对冠醚螺吡喃的生色有诱导作用;6位为吸电子基团时,螺吡喃开环形式的稳定性增加,而6位为推电子基团时,螺吡喃开环形式的稳定性降低。
2) Spirobenzopyran
螺吡喃
1.
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。
2.
? 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。
3.
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。
3) Spiropyran
螺吡喃
1.
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
2.
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
3.
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
4) bissiropyran
双螺吡喃
5) tetrahydropyran ether
四氢吡喃醚
1.
As an effective protection for hydroxy group in alcohols and phenols,the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.
从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
6) Spironaphthopyran
螺萘并吡喃
补充资料：冠螺科
| 冠螺科 Cassidae；helmet shell 软体动物门中腹足目的一科。贝壳较膨胀，呈卵圆形或三角卵圆形。螺旋部低，体螺层膨大。螺层上常有纵肿脉，壳面光滑或具细的螺旋沟纹，结节突起以及红褐色斑块或花纹。热带种和温带常见的种类全为海产。生活于低潮线附近至300米水深的沙或泥沙质海底。中国沿海皆可采到，有记载的约16种，西沙群岛有唐冠螺。壳供观赏和贝雕用，肉可食。也广泛分布于太平洋和印度洋暖水区。
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