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CAS No.: | 5870-63-3 |
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Name: | 3-HYDROXY-2-METHYL-CYCLOPENT-2-ENONE |
Article Data: | 4 |
Molecular Structure: | |
Formula: | C6H8 O2 |
Molecular Weight: | 112.128 |
Synonyms: | 3-Hydroxy-2-methyl-2-cyclopenten-1-one;3-Hydroxy-2-methyl-2-cyclopentenone |
Density: | 1.225g/cm3 |
Melting Point: | 213-215 °C(Solv: ethanol (64-17-5)) |
Boiling Point: | 212.2°Cat760mmHg |
Flash Point: | 84.4°C |
PSA: | 37.30000 |
LogP: | 1.18130 |
2-methylcyclopentane-1,3-dione ethylene glycol monoacetal
3-hydroxy-2-methyl-2-cyclopenten-1-one
Conditions | Yield |
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With hydrogenchloride In tetrahydrofuran; water for 10h; | 71% |
3-hydroxy-2-methyl-2-cyclopenten-1-one
Conditions | Yield |
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With Amberlyst 15; trifluoroacetic acid for 10h; Heating; | 0.088 g |
Conditions | Yield |
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Multi-step reaction with 5 steps 1.1: N,N,N,N,N,N-hexamethylphosphoric triamide; methyllithium / diethyl ether / 0.5 h / 0 °C / Inert atmosphere 1.2: 1 h / -78 °C / Inert atmosphere 1.3: 3 h / -78 - 20 °C / Inert atmosphere 2.1: toluene-4-sulfonic acid / benzene / 6 h / Reflux; Dean-Stark 3.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / Inert atmosphere 3.2: 20 h 4.1: tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide / dichloromethane / 0.5 h / Molecular sieve; Inert atmosphere 5.1: hydrogenchloride / tetrahydrofuran; water / 10 h View Scheme |
3-hydroxy-2-methyl-2-cyclopenten-1-one
Conditions | Yield |
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Multi-step reaction with 4 steps 1.1: toluene-4-sulfonic acid / benzene / 6 h / Reflux; Dean-Stark 2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / Inert atmosphere 2.2: 20 h 3.1: tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide / dichloromethane / 0.5 h / Molecular sieve; Inert atmosphere 4.1: hydrogenchloride / tetrahydrofuran; water / 10 h View Scheme |
3-hydroxy-2-methyl-2-cyclopenten-1-one
Conditions | Yield |
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Multi-step reaction with 3 steps 1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 0.33 h / Inert atmosphere 1.2: 20 h 2.1: tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide / dichloromethane / 0.5 h / Molecular sieve; Inert atmosphere 3.1: hydrogenchloride / tetrahydrofuran; water / 10 h View Scheme |
3-hydroxy-2-methyl-2-cyclopenten-1-one
Conditions | Yield |
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Multi-step reaction with 2 steps 1: tetrapropylammonium perruthennate; 4-methylmorpholine N-oxide / dichloromethane / 0.5 h / Molecular sieve; Inert atmosphere 2: hydrogenchloride / tetrahydrofuran; water / 10 h View Scheme |
3-hydroxy-2-methyl-2-cyclopenten-1-one
orthoformic acid triethyl ester
2-Methylcyclopent-1,3-dione monoethyl enol ether
Conditions | Yield |
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With sulfuric acid In ethanol | 98% |
3-hydroxy-2-methyl-2-cyclopenten-1-one
3-chloro-2-methylcyclopent-2-en-1-one
Conditions | Yield |
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With diethyl(trichloromethyl)phosphine In dichloromethane for 12h; Ambient temperature; | 92% |
With tetrachloromethane; triphenylphosphine | |
With oxalyl dichloride In N,N-dimethyl-formamide |
3-hydroxy-2-methyl-2-cyclopenten-1-one
4,5-dioxohexanoic acid
Conditions | Yield |
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With oxygen; copper(II) perchlorate In acetonitrile for 12h; Ambient temperature; | 92% |
3-hydroxy-2-methyl-2-cyclopenten-1-one
benzylamine
3-(benzylamino)-2-methylcyclopent-2-en-1-one
Conditions | Yield |
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With toluene-4-sulfonic acid In toluene for 10h; Heating; | 92% |
With toluene-4-sulfonic acid In toluene Heating; | 92% |