Synthesis of bis ( 6-bromo-9-ethyl-carbazole-3-yl) toluene-iodide 双(6-溴代-9-乙基-咔唑-3-基)甲苯基碘盐的合成
Calix [ 4] arenes bearing ester pendants in the lower rim were prepared by a convenient method using the more economical and less toxic ethyl chloroacetate/ alkali metal iodide as an alkylating reagent. 采用更为经济和毒性较小的氯乙酸乙酯-碱金属碘化物体系作烷基化试剂,方便地制得了下缘带有酯基基团的杯[4]芳烃。
Ethyl bromide or iodide at 20 torr was irradiated by a TEA CO2 laser. The reaction products were identified by means of infrared spectrometry, gas chromatography and CW CO2 laser photoacoustic spectroscopy. ~20托溴乙烷或碘乙烷用TEACO2激光辐照,其产物用红外光谱、气相色谱和CWCO2激光光声光谱检测。
Condition of thin-layer scanning: silicon-gel H-0.8% CMC-Na-0.8% NaOH thin-layer sheet, Ethyl Acetate-Methanol-ammonia water ( 17 ∶ 2 ∶ 1) as expansion agent, improved bismuth and potassium iodide and 2% sodium nitrite for atomizing develop; 薄层扫描条件:硅胶H-0.8%CMC-Na-0.8%NaOH薄层板,以乙酸乙酯-甲醇-氨水(17∶2∶1)为展开剂,改良碘化铋钾及2%亚硝酸钠喷雾显色;
With ethyl alcohol as solvent and sodium iodide as catalyst, 1,4-dibutoxybenzene was synthesized from metal sodium, hydroquinone and n-butyl bromide. 以乙醇为溶剂,碘化钠为催化剂,由金属钠、对苯二酚和溴丁烷合成了1,4-二丁氧基苯。