Aldehydes and Ketones

Consider the following compound. The compound undergoes reaction with two equivalents of diisobutyl aluminium hydride followed by acid hydrolysis to provide P as the major product. The structure of P is:

Consider the following reaction: The compound P is

$\mathbf{X}$ may exist in tautomeric form $\mathbf{Y} . \mathbf{X}$ reacts with methylamine to form $\mathbf{Z}$. The structure of $\mathbf{Z}$ is

$\mathbf{X}$ on reaction with $\mathrm{NaBH}_4$ gives $\mathbf{Y}$, which upon treatment with catalytic amount of concentrated $\mathrm{H}_2 \mathrm{SO}_4$ at $100^{\circ} \mathrm{C}$ gives $\mathbf{Z}$ (major product).…

An intramolecular aldol reaction of $\mathbf{P}$ in the presence of dilute NaOH yields a mixture of aldol reaction products. One of the products that can be formed is

Consider the following mechanism of a reaction. The correct statement(s) is(are):

$\text { Consider the following reaction sequence }$ $\xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{NaOH} / \mathrm{Br}_2} \mathbf{X} \xrightarrow[\text { (ii) } \mathrm{H}_3…

Glyceraldehyde is an important intermediate in organic reactions. It can be prepared from readily available acrolein as given below. The correct statement(s) with respect to the above synthesis is(are):

Carbanions derived from aldehydes/ketones are called enolates, as they represent anions (conjugate bases) of the enol forms. Enol ethers can be prepared and are synthetically important. These anions react with an alkyl…

The correct statement(s) with respect to the following sequence of reactions is/are

$\text { The following reaction involves sequentially }$

The following reaction leads to aldol products (olefins). The number of theoretically possible products is