Its metallation and addition to cyclopentanone proceeded well to 40.其金属取代物能和环戊酮顺利地反应得到40.Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.以单质碘为催化剂合成了环戊酮乙二缩酮.Methyl dihydrojasmonate was synthesized fro...
Ten aryl chloroacetates were synthesized by liquid - liquid phase transfer catalysis.摘要利用液 - 液相转移催化法合成了10种氯乙酸芳酯.Aryl disulfides, for example, inhibit polyolefin oxidation.例如芳基二硫化物可抑制聚烯烃的氧化.The most effective syhthetic co...
Martinez expressed confidence of victory at the ballot box.马丁内斯表示了对选举获胜的信心。The poll was widely discredited after allegations of ballot rigging.选举舞弊的指控出现后，这次投票测验受到了广泛质疑。They succeeded in putting Perot's name on the b...
Looking through the cabin window I saw the flicker of flames.透过船舱的窗户我看到了闪烁的火光。He looked at me, a flicker of amusement in his cold eyes.他看着我，冷酷的眼神里闪过一丝嘲笑。He felt a flicker of regret.他突然感到一丝悔意。...