2)环醚 环氧化合物 QD3 环醚 大环多醚 环氧化合物( Epoxides, oXIranes H2C—CH2H2C—CHCH3CH2-CH2-CH2 环氧乙烷 环氧丙烷1,3环氧丙烷 Epoxyethane Epoxypropane 1, 3-Er poxypropane 厂四氢呋喃(9 O′(THF 14二氧六环 2 Tetrahydrofuran 1. 4-Dioxane
Organic Chemistry Organic Chemistry Xiamen Xiamen University University H 2C C H 2 O H 2C C H C H 3 O 环氧乙烷 环氧丙烷 Epoxy e thane Epoxypropane CH 2 CH 2 O CH 2 1,3 环氧丙烷 1,3- Epoxypropane 环醚 环氧化合物 大环多醚 环氧化合物(Epoxides, oxiranes) (2) 环醚 O O O 四氢呋喃 (TH F ) 1, 4 二氧六环 T etra h y drofuran 1,4- D ioxane
大环多醚( Cyclic polyether) (OCH2CH2hn冠醚( Crown ether) O O 18冠6 1 8 crown 6 O O
Organic Chemistry Organic Chemistry Xiamen Xiamen University University 大环多醚 ( Cyclic polyether) O O O O O O (O C H 2CH 2 ) n 冠醚 ( Cro w n et her) 18 冠 6 18 cro w n 6
Organic Chemistry Organic Chemistry Xiamen Xiamen University University18 crown 6
g2.物理性质 bp.比同碳原子数的醇低得多 哥·水中溶解度小(环醚除外) CH3OCH3 CH3 CH2OCH2 CH3 ∠bp()-24.9 34.6 CH3 CH2OH CH3 CH CH2CH2OH b.p.()78.4 117.8
Organic Chemistry Organic Chemistry Xiamen Xiamen University University 2. 物理性质 b.p. 比同碳原子数的醇低得多 水中溶解度小 (环醚除外 ) CH 3OCH 3 C H 3CH 2OCH 2CH 3 CH 3CH 2 O H C H 3CH 2CH 2CH 2OH b.p. ( ) - 24.9 3 4.6 b.p. ( ) 78.4 1 1 7.8