Chemistry

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? H =? U +? n_gRT

Veronal is a barbiturate drug and it constitutes an important class of tranquilizers.

Chloroprene is the monomer of neoprene.

2-chlorobuta-1,3-diene (chloroprene)

When nucleoside is linked to phosphoric acid at 5 '-position of sugar moiety, we get nucleotide.

Bromobenzene is formed in first step (Sandmeyer reaction), which further gives phenyl magnesium bromide. Phenyl magnesium bromide further gives benzene with water.

+Mg (Br)OH

CH? CONH? - (i) LiAlH? , (ii) H? O? )-> CH? NH?

CH? CONH? - (Br? /KOH)-> CH? NH?

CH? CN - (i) LiAlH? , (ii) H? O? )-> CH? NH?

CH? NC - (i) LiAlH? , (ii) H? O)-> CH? NHCH?

Methyl isocyanide gives a secondary amine, CH? NHCH? upon reduction.

Ketones are reduced into hydrocarbons using Zn – Hg/HCl (Clemmenson reduction).

Allylic halide have halogen bonded to sp³ carbon which is adjacent to > C = C <

Initially, after protonation followed by loss of water, secondary carbocation is formed, further Hydride shift leads to 3° carbocation.

Homoleptic complexes have all ligands identical. Potassium trioxalatoaluminate (III) is K? [Al (C? O? )? ] which has only oxalate ion as ligand. All others have more than one type of ligands.