单词	aldol
释义	aldol /ˈaldɒl / noun [mass noun] Chemistry A viscous liquid obtained when acetaldehyde dimerizes in dilute alkali or acid. Chemical formula: CH3CH(OH)CH2CHO. The simplest aldol - CH 3 CHOHCH 2 CHO - is produced from ethanal.... The most useful mixed Aldols are those where only one reactent can form an enolate. Aldols are bifunctional molecules possessing OH and C=O groups, which are able to act as both hydrogen donors and/or acceptors. Origin Late 19th century: from al(dehyde) + -ol.
随便看	oilfield oil filler oil filter oil-fired oil firing oilfish oil fuel oil-fueled oil-fuelled oil furnace oil gas oil gauge oil giant oil-gilding oil gland oil gold-size oil-harden oil-hardening oil heater oil hole oilily oil-immersed oil-immersion oiliness oilionaire

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。