• 基礎釋義
• 例句

• Methyl dihydrojasmonate was synthesized from 2 pentyl 2 cyclopentanone and methyl malonate by condensation and decarboxylation. 2-戊基環戊烯酮再與丙二酸二甲酯縮合,脫羧得到二氫茉莉酮酸甲酯.
• Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst. 以單質碘為催化劑合成了環戊酮乙二縮酮.
• Its metallation and addition to cyclopentanone proceeded well to 40. 其金屬取代物能和環戊酮順利地反應得到40.
• Absorption spectra of three novel coumarin sensitizer incorporate benzylidene cyclopentanone moiety were studied. 比較研究了三種含芐叉環戊酮基團的新型香豆素類光敏染料.