Which of the following reagents(s) can be used to convert an ester to aldehyde D

Question

Which of the following reagents(s) can be used to convert an ester to aldehyde DIBALH / h_3O^+ NBS H_2 NaBH / H_3O^+ LiALH_4 / H_3O^+ Which of the following reagents(s) can be used to prepare CH_3CH_2-CN from ethylbromide? CH_2(CN)_2 NH_2-NH_2 CH_3-CN KCN NH_3 The product expected in the following reaction is an: armine ammonium amide enamine imine Which of the following reagent(s) can be used to convert 3-methyl pentanoic acid to 3-methyl 1-pentanol? H_2/Pd-C CH_3MgBr / H_3O^+ NaBH_4 / H_3O^+ LiAH_4 / H_3O^+ PCC Which of the following combination of reactants/reagents can be used to prepare an ether? CH_2O_2C_2H_5MgBr /H_3O_+ C_3H_5MgBr/H_3O^+ C_3H_5OH / H_2SO_4 C_2H_5ONa_1C_2H_5Br C_2H_5ONa_1C_2H_5COCI Which of the following reagents(s) can be used to prepare propanoic acid from ethylmagnesiumbromide? HCOOH NaCN / H_3O^+ CH_3OH / H_3O^+ CO / H_3O^+ CO_2/ H_3O^+ Product of the following reaction 3-ethyl 3-hexanol 2-hexanone 2-pentanone

Explanation / Answer

[1] For ester to aldehyde,

(A) DIABALH/H3O+

[2] For ethylbromide to ethylnitrile,

(D) KCN

[3] Product formed,

(E) imine

[4] Resgent used here,

(D) LiAlH4/H3O+

[5] To prepare ether,

(C) C2H5ONa, C2H5Br

[6] For this preparation we would use,

(E) CO2/H3O+

[7] Product of the reaction,

(A) benzoic acid

[8] Product formed in reaction,

(E) 3-hexanone

[9] The reagent used is,

(D) LiAlH4/H3O+

[10] most acidic compound is,

(B) CH3CO2H

[11] Product of the reaction,

(E) phenylethene

[12] Reaction product is,

(C) ketal

[13] product of the reaction,

(C) HO-(CH2)4-Br

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