COOH-|||-由丙二酸二乙酯合成 。-|||-CO OH
COOH9由丙二酸二乙酯合成C○○HCOOH9由丙二酸二乙酯合成C○○H
_(11)-COOH-|||-COOH-|||-C. (H)_(2)=CH-COOH D. OH
- 吡啶甲酸的构造简式为 ()-|||-COOH-|||-COOH COOH-|||-
1.命名下列化合物或写出结构:-|||-(1) CH3CHCH2 COOH-|||-CH3-|||-CH3-|||-(2) Cl- CHCH2COOH-|||-
45.化合物 -COOH二元硝化的主要生成物是 () 。-|||-NO2-|||-(A) _(2)N-C-COOH (B) -COOH-|||--COOH-||
1.命名下列化合物。-|||-(1) (H)_(2)=CHCOOC(H)_(3)-|||-(2)(CH3)3 CC(CH 3)2 COOH-|||-(3) CO
3.按酸性由强到弱顺序排列下列化合物-|||-COOH OH COOH COOH COOH-|||-OH 六 D.-|||-
H -OH HO H-|||-C2H5 CH3 CH3 CH3-|||-COOH COOH-|||-H OH HO H D. 与-|||-C. H -OH 与
CH2=CHF b. CH2=C(CH3)2 c. HO(CH2)5COOH d. CH2-(CH2e. NH2(CH2)6NH + HOOC(CH 2)