
5.(醛和酮)-|||-下面反应的主产物是什么?-|||-CH3OH H3CO OCH3 OCH3 CH Q-|||-H2SO4-|||-1 2 3 4
某药材的乙醇提取浓缩物中含有小檗碱、四氢巴马汀、小檗胺三种生物碱及水溶性杂质、脂溶性杂质,设计提取分离各类成分试验流程。H3CO OCH3 H3CO-|||-o
判断题-|||-1.(NH4)2CO 3水溶液的质子条件式为 [ H+] =[ OH] -|||-+[ N(H)_(3)] -2[ (H)_(2)C(O)_(3
(C(H)_(3))_(2)CHC(H)_(2)C(H)_(2)OH+HBr-|||-OCH3-|||-b. +H 过量)-|||-CH2CH 2OCH3-||
H -OH HO H-|||-C2H5 CH3 CH3 CH3-|||-COOH COOH-|||-H OH HO H D. 与-|||-C. H -OH 与
NH4HS D (CH3CO)2O-|||-OH AlCl3 OH HCl OH H2O (C10H15NO)-|||-A B C-|||-段 (C4H10Cl
(H)_(3)C(H)_(2)CH=C(H)_(2)xrightarrow ({H)_(2)S(O)_(4)}-|||-b. (C(H)_(3))_(2)C=C
(2) _(2)(O)_(2)+(I)^-+(H)^+ →-|||-(4) FeCl3+H2S- →-|||-(6) +HN(O)_(3) (浓)→-|||-(
在一定条件下,将燃煤废气中的CO2转化为二甲醚的反应为:2CO2(g)+6H2(g)⇌CH3OCH3(g)+3H2O(g)△H已知:①CO(g)+2H2(g)⇌
equiv CC(H)_(2)C(H)_(2)OH 与 (H)_(3)C=!=!= C(C)_(2)OH-|||-CH2OH-|||-b. 与 CH3-|||-