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It is prepared by the aldol condensation of acetone to give diacetone alcohol, which readily dehydrates to give this compound. [4] [5] Phorone and isophorone may be formed under the same conditions. Isophorone originates via a Michael addition: Phorone is formed by continued aldol condensation:
Acetone (2-propanone or dimethyl ketone) is an organic compound with the formula (CH 3) 2 CO. [22] It is the simplest and smallest ketone (>C=O).It is a colorless, highly volatile, and flammable liquid with a characteristic pungent odour, very reminiscent of the smell of pear drops.
Acetonyl acetone Diacetonyl 2,5-Dioxohexane 2,5-Diketohexane 2,5-Hexanedione. ... ≥ 10 g/100 mL (22 °C) Magnetic susceptibility (χ)-62.51·10 −6 cm 3 /mol Structure
Acetic acid / ə ˈ s iː t ɪ k /, systematically named ethanoic acid / ˌ ɛ θ ə ˈ n oʊ ɪ k /, is an acidic, colourless liquid and organic compound with the chemical formula CH 3 COOH (also written as CH 3 CO 2 H, C 2 H 4 O 2, or HC 2 H 3 O 2).
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Isophorone is produced on a multi-thousand ton scale by the aldol condensation of acetone using KOH. Diacetone alcohol, mesityl oxide, and 3-hydroxy-3,5,5-trimethylcyclohexan-1-one are intermediates. A side product is beta-isophorone, where the C=C group is not conjugated with the ketone. [4]
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