Naphthalene is a hydrocarbon produced by the distillation of coal tar and is an aromatic white crystalline substance. Naphthalene is the most abundant component in coal tar. It is used as an insect repellant and insect fumigant. The compound is used in the manufacture of celluloid, dyes, hydrogenated naphthalenes, oil fumes, smokeless powders and synthetic resins.
Thiomorpholine is a nitrogen- and sulfur-containing heterocyclic compound with the molecular formula C4H9NS. It can be considered a thio analog of morpholine. Thiomorpholines are comparable to other secondary amines in terms of nucleophilicity and N-alkylation or acylation with alkyl groups or acid halides.
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