The effects of solvent of Grignard reagent, pyridine hydrochloride and boron tribromide on yield of product were investigated.
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2. 本实验似可以说明：苯海拉明、甲氰脒胍有抑制肥大细胞脱颗粒作用。
It can be elucidated from the result of this study that benadryl and cimetidine have the effect to inhibit the degranulation of mast cells.
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3. 采用空气吹脱法脱除合成革厂废水中的甲胺类化合物。
Air stripping method was used to remove methylamines in wastewater from synthetic leather plant.
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4. 方法：以芦丁为原料，经苯甲酰化，水解，糖苷缩合和脱保护合成目标化合物。
Methods: Rutin was utilized as the starting material. The target compounds were produced via benzoylation, hydrolysis, glycosidation and deproteination.
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5. 结果表明，预处理制浆溶出木质素的硫元素与甲氧基含量及脱木质素反应均不同于常规硫酸盐制浆。
The results indicate that the contents of sulfur and methoxyl group and the delignification process of sodium sulfide pretreatment kraft pulping are different from those of control pulping.
Methods Apraclonidine was synthesized from P-Nitraniline by reaction with reduction, adding protection group, formylation, chlorination, cyclization, off-protecting group.
Methods Apraclonidine was synthesized from P-Nitraniline by reaction with reduction, adding protection group, formylation, chlorination, cyclization, off-protecting group.
