Question

Give names of the reagents to bring about the following transformation:
(i) Hexan-1-ol to hexanal
(ii) Cyclohexananol to cyclohexanone
(iii) p-Flourotoluene to p-fluoro benzaldehyde
(iv) Ethanenitrile to ethanal
(v) Allyl alcohol to propenal
(vi)But-2-ene to ethanal

Answer 1

(i) $C_5{H}_{5}NH+Cr{O}_{3}Cl$ - (PCC)C5H(i) $C_{5}H_{5}NH^{+}CrO_{3}CI^{-}(PCC)$

(ii) Anhydrous $Cr{O}_3$

(iii) $Cr{O}_3$ in the presence of acetic anhydride/ $Cr{O}_{2}C{I}_{2}2.H_{2}O$

(iv)(Diisobutyl) aluminium hydride (DIBAL-H)

(v)PCC

(vi) $O_3/H_{2}O-Zn$ dust