3.写出下列反应的主要产物。-|||-(1) 0 HCN H2O-|||-CH3-|||-()-|||-(2) (H)_(3)-C-H+C(H)_(3)C(H)_(2)MgClxrightarrow (Zn)(Cl)_(2)O-|||-OH OH-|||-(3)CH3CHO+CH2-CH2 干HCl-|||-0-|||-(4) (H)_(3)-C-C(H)_(3)+N(H)_(2)N(H)_(2)arrow ?-|||-0-|||-(5) square -C(H)_(2)-C-C(H)_(3)xrightarrow [Na]({H)_(2)}^2+7?-|||-(6)2CH3CH2 CHO-稀NaOH ??一-|||-(7) square -CHO+C(H)_(3)C(H)_(2)CHO 稀NaOH ?一△+?-|||-CH3-|||-(8) (H)_(2)=CHC(H)_(2)CHOxrightarrow ( Ag(N{H)_(3))_(2)] }^+}(2)?-|||-(9) -CH=CHCHOxrightarrow (NaB{H)_(4)}-|||-(10) square CH=CHCHOxrightarrow (N{H)_(2)}uparrow -|||-0-|||-(11) (H)_(3)-square -C-C(H)_(2)C(H)_(3)xrightarrow [高温](Zn+{H)_(2)uparrow }-|||-(12) (C(H)_(3))_(3)CCHO+HCHO 浓NaOH

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