Analysis of allelochemicals and allelopathic effect of rhizosphere soils of newly planted and ratoon sugarcane (Saccharum officinarum L.) was written by Zhang, Ai-Jia;Yuan, Zhao-Nian;Chen, Dong-Mei;Wang, Hai-Bin;Wu, Wen-Xiang;Lin, Sheng;Chen, Ting;Chen, Lan-Lan;Fang, Chang-Xun;Lin, Wen-Xiong. And the article was included in Zhongguo Shengtai Nongye Xuebao in 2010.Quality Control of Ethyl methyl adipate The following contents are mentioned in the article:
An experiment was conducted on the allelopathic effects of rhizospheric soil extracts (by water and polarity solvents) from newly planted and ratoon sugarcane (‘FN28’, ‘GZ18’) and non-sugarcane (CK) soils. Putative allelochems. of the rhizospheric soil extracts were then identified via GC-MS. In comparison with CK, high concentration water extracts inhibit lettuce growth whereas low concentration extracts promote growth. Inhibitory effects of rhizospheric soil water extracts of ratoon sugarcane are higher than that of newly planted sugarcane. Rhizospheric soil extracts from newly planted and ratoon sugarcanes by weak polarity petroleum ether and ether solvents promote lettuce growth. The reverse is true for extracts by medium polarity chloroform and strong polarity methanol. Further allelochem. anal. suggests that inhibitory effect of methanol extract is the strongest. Allelopathic effect of rhizospheric soil of ‘GZ18’ is higher than that of ‘FN28’ both by water extracting and polarity solvent extracting GC-MS anal. of methanol extract substances from ‘GZ18’ rhizospheric soils shows 54 compounds related with allelopathy, including acids, terpenoids, phenols, steroids and esters. This study involved multiple reactions and reactants, such as Ethyl methyl adipate (cas: 18891-13-9Quality Control of Ethyl methyl adipate).
Ethyl methyl adipate (cas: 18891-13-9) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of Ethyl methyl adipate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics