乙二醇和丙醛的反应方程式
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/02 03:31:22
与丙三醇:2HOCH2CH(OH)CH2OH+6Na=2NaOCH2CH(ONa)CH2ONa+3H2与乙二醇:HOCH2CH2OH+2Na=NaOCH2CH2ONa+H2
CH2OHCH2ONa|+2Na--------|+H2CH2OHCH2ONa
乙酸和乙二醇:2CH3COOH+HOCH2CH2OH------CH3COOCH2CH2COOCCH3+2H2O\x0d乙酸和丙三醇:3CH3COOH+HOCH2CHOHCH2OH------CH3C
HOCH2CH2OH+2Na=NaOCH2CH2ONa+H2↑
乙醇:2CH3CH2OH+2Na→2CH3CH2ONa+H2↑乙二醇:HOCH2-CH2OH+2Na→NaOCH2-CH2ONa+H2↑
楼上的是乙二醇不是乙醇应该是HOCH2CH2OH+2Na=NaOCH2CH2ONa+H2
HOCH2CH2OH+2Na→NaOCH2CH2OHNa+H2
HOCH2CH2OH+2Na=NaOCH2CH2ONa+H2希望采纳
CH3CH2CH(OCH2-CH2O)结构式为C5H10O2
这是个加成反应:CH3-CH2-CHOHCN=CH3-CH2-CH(-OH)CN
HOCH2CH2OH+O2=CHOCHO+2H2OCHOCHO+O2=HOOCCOOHHOCH2CH2OH+2O2=HOOCCOOH+2H2OCH2=CH2+Br2=CH2Br-CH2BrCH2Br-
链状:2HO-CH2-CH2-OH==浓硫酸,140℃==HO-CH2CH2OCH2CH2-OH+H2O环状:2HO-CH2-CH2-OH==浓硫酸,140℃==CH2-O-CH2+2H2OllCH2
CH2=CH2+Br2--->CH2BrCH2BrCH2BrCH2Br+2NaOH--->CH2OHCH2OH+2NaB
足量乙酸,所以乙二醇的两个羟基都发生酯化反应.方程式:HOCH2-CH2OH+2CH3COOH--浓硫酸,△-->CH3COOCH2-CH2OOC-CH3+2H2O
COOHCH2OHCOOCH21+1===(浓H2SO4加热)===1+2H2OCOOHCH2OHCOOCH2此外,也有可能COOHCH2OH1+1===(浓H2SO4加热)===HOOC-COOCH
nHOOC-COOH+nHO-CH2CH2-OH==HO-[-OC-COO-CH2CH2-O-]n-H+(2n-1)H2O说明一下,n在【】的右下方
CH3COOH+CH3OH=CH3COOCH3+H2O2CH3COOH+HOCH2CH2OH=CH3COOCH2CH2OOCCH3+2H2OHCOOH+CH3CH2OH=HCOOCH2CH3+H2O
nHO-CH2-CH2-OH+nHOOC-C6H4-COOH→[—O-CH2-CH2-O-OC-C6H4-CO—]n+2nH2O
1.试剂:浓硫酸,液溴,NAOH溶液2.步骤第一步乙醇在浓硫酸作用下分子内脱水生成乙烯CH3CH2OH==浓硫酸,170摄氏度==CH2=CH2气体符号+H2O第二步乙烯和液溴加成生成二溴乙烷CH2=
乳酸和丙酸发生酯化反应方程式CH3CH(OH)COOH+CH3CH2COOH=CH3CH(OOCH2CH3)COOH+H2O乳酸和乙二醇发生酯化反应方程式CH3CH(OH)COOH+HOCH2CH2O