| 1. | This bromination was unambiguous . 这一溴代反应是明确无疑的。 |
| 2. | Bromination takes place less readily . 溴化反应较不易发生。 |
| 3. | In cases of doubt the changes following hydrogenation, bromination or other chemical attack upon the double bond can be studied . 在有疑问时可以研究双键的氢化,溴化或其他化学反应所引起的变化。 |
| 4. | Bromination substitution reaction of nitro - triphenylether 硝基三苯醚的溴化反应 |
| 5. | Preparation of para - bromophenol by selective bromination of phenol 对溴苯酚合成工艺 |
| 6. | Multi - bromination of chloro - substituted nitro - diphenylether 氯代硝基二苯醚的多溴代反应 |
| 7. | Studies on the regioselectivity of acetylation - bromination in pregnanetriol 磁性薄膜研究的现状和未来 |
| 8. | Method for determination of chlordimeform residuesin honey for export . bromination - gas chromatography 出口蜂蜜中杀虫脒残留量检验方法.溴化-气相色谱法 |
| 9. | United kingdom manufacturer of organic intermediates . specialties include amination , bromination , cyanation , epichlorohydrin , friedel - crafts and thionyl chloride chemicals -生产醋酸乙酯和醋酸丁酯等有机溶剂,产品用于医药香料染料涂料油墨等。 |
| 10. | Beginning with fluorobenzaldehyde , cyfluthrin was synthesized by bromination , acetalation , etherification , hydrolysis , and esterification , with a total yield of 45 % 以对氟苯甲醛为起始原料,经过溴化、缩醛化、醚化、水解、酯化合成氟氯氰菊酯,总收率45 % 。 |