有奖纠错
| 划词

The target compound was synthesized from N-benzyl protected aminoacetophenone through hydrogenation,benzoylation and reduction.

以氮-苄基保护胺基为原料,经氢,还原步合成双酰沙丁胺醇

评价该例句:好评差评指正

Xanthone was efficiently synthesized from o-chlorobenzoic acid first by etherization and then by Friedel-Crafts reaction in the presence of aluminium trichloride.

以邻酸为原料,先进行醚,再在铝的作用下进行傅-克反应,可简洁、高效的合成呫吨

评价该例句:好评差评指正

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻酸和对乙氧基胺为原料,经过胺的、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶

评价该例句:好评差评指正

用户正在搜索


meteoritics, meteorocket, meteorogram, meteorograph, meteoroid, meteorolite, meteorologic, meteorological, meteorological satellite, meteorologically,

相似单词


3G, 401(K), a,

声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。

科学60秒-科学美国人 2019年3月合集

From Palau: The tiny Pacific archipelago became the first country to prohibit the use of sunscreens containing coral-toxic ingredients, including oxybenzone and octinoxate.

来自帕劳:这个小小的群岛成第一个用含有对珊瑚有毒成分的防晒霜的国家,其中包括羟苯甲和辛氧酸盐。

评价该例句:好评差评指正

用户正在搜索


metepencephalon, meter, meter maid, meter reading, meterage, metercandle, meter-candle-second, metergasis, metergoline, metergy,

相似单词


3G, 401(K), a,
  • 微信二维码

    关注我们的微信

  • 手机客户端二维码

    下载手机客户端

赞助商链接