Bromination takes place less readily.
溴化反應(yīng)較不易發(fā)生.
辭典例句
METHODS: The target compound was prepared by the bromination and amination reaction.
方法: 用溴代及胺化反應(yīng)合成了四甲基吡嗪衍生物.
互聯(lián)網(wǎng)
This product with Br 2 was obtained 2 - bromo - 4,5 - hydroxymethoxybenzaldehyde through bromination.
再溴代得到2-溴 -4,5-二甲氧基苯甲醛,收率為91.9%,并分析溴代過程中甲酰基的鄰位效應(yīng)及溴代產(chǎn)物的穩(wěn)定性.
互聯(lián)網(wǎng)
This bromination was unambiguous.
這一溴代反應(yīng)是明確無疑的.
互聯(lián)網(wǎng)
The tetrabromobisphenol a new kind of flame retardant is prepared bromination of bisphenol A.
四溴雙酚A是 一種用途較多的新型阻燃劑,可用雙酚A經(jīng)溴化合成.
互聯(lián)網(wǎng)
Tinidazole was synthesized from metronidazole by bromination, thiolation and oxidation with total yield of 44.6 %.
以甲硝唑?yàn)樵?經(jīng)溴化 、 硫醚化和氧化合成替硝唑,總收率44.6%.
互聯(lián)網(wǎng)
A new process was developed to synthesize 2 nitrobenzyl alcohol from 2 nitrotoluene by catalytic bromination.
研究了鄰硝基甲苯經(jīng)催化溴化合成鄰硝基苯甲醇工藝.
互聯(lián)網(wǎng)
Methyl cis - cinnamate was synthesized from ethyl trans - cinnamate by bromination, dehydrobromination, esterification and catalytic hydrogenation.
反式肉桂酸乙酯經(jīng)溴化 、 脫溴化氫 、 甲酯化和催化氫化合成了順 式 肉桂酸甲醇.
互聯(lián)網(wǎng)
Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylation and bromination overall yield.
以水楊醛為原料,經(jīng)縮合 、 還原 、 ?；?、 脫甲基、溴化反應(yīng)制得苯溴馬隆,總收率40.6%.
互聯(lián)網(wǎng)
Methods: The target compound was synthesized through bromination and thioetherification from 4 - methoxyacetophenone as a starting material.
方法以3-甲氧基苯硫酚和對(duì)甲氧基 - 苯乙酮為原料經(jīng)溴化、烴基化、環(huán)合重排排制得目標(biāo)產(chǎn)物.
互聯(lián)網(wǎng)
The 1,4 dialkoxynaphthalo 2,3 dinitriles were synthesized from 1,4 naphthoquinone by bromination, cyanation and O alkylation.
研究了以1,4-萘醌為原料,通過溴代 、 氰化和O-烷基化三步合成1,4-二烷氧基萘-2,3-二甲腈.
互聯(lián)網(wǎng)
During baking, bromates are completely reduced to bromides with no bromination of flour constituents.
在焙烤過程中, 不用通過面粉各組分的溴化作用,溴酸鹽也會(huì)全部徹底地還原成溴化物.
互聯(lián)網(wǎng)