Keggin 结构型硅钨酸催化β-萘酚与醛的缩合反应_stmopen 关键词】: 氧杂蒽 醛 β-萘酚β-萘酚 硅钨酸 [gap=552]Keywords】: xanthene,aldehyde,β-naphthol β-naphthol,silicotungstic acid
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...酮颜料、甘菊蓝鎓(azulenium)染料、斯夸苷鎓(squarilium)染料、酞菁染料、吡喃鎓(pyrylium)染料、硫代吡喃鎓染料、呫吨(xanthene)染料、三苯甲烷染料、苯乙烯染料、硒、硒-碲合金、无定形硅和硫化镉。
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:占吨 中文名称 占吨 英文名称 xanthene 中文别名 二苯并--吡喃;(夹)氧杂蒽;吨;二苯并f喃;氧杂;氧杂蒽;呫吨;口占 吨 CAS R.... 产品名称: 占吨 所在地区: 湖北 武汉 单位价格
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Xanthene-9-carboxylic acid 占吨酸 ; 呫吨酸 ; 呫吨 ; 吨
Ethyl xanthene-9-carboxylate 氧杂蒽
xanthene dye 咕吨染料
xanthene dyestuffs 二苯并喃
Ethyl 9H-xanthene-9-carboxylate 氧杂蒽
9H-Xanthene 占吨 ; 氧杂蒽产品
N a yellowish crystalline heterocyclic compound used as a fungicide; benzo-1,4-pyran. Its molecular structural unit is found in many dyes, such as rhodamine and fluorescein. Formula: CH2(C6H4)2O 呫吨
The cationic dye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.
优选地,阳离子染料选自偶氮染料、偶氮甲碱染料、次甲基染料和?吨染料。
Methyl 9-hydroxyl-9-xanthene carboxyate which is an important intermediate of xanthene anticholiergic drugs was easily synthesized from methyl 9-xanthene carboxyate.
羟基-9-呫吨羧酸甲酯是合成呫吨类抗胆碱能药物的一种重要的中间体。
In the present paper, a series of xanthene-2-carboxylic acids and xanthone-2-carboxylic acids with electron withdrawing groups on the 7-position had been synthesized.
本文合成了一系列7位拉电子基团取代的氧杂蒽-2-羧酸及氧杂蒽酮-2-羧酸化合物。
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