2-Chloropyrimidine-5-carbaldehyde
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2-Chloropyrimidine-5-carbaldehyde
structure -
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CAS No:
933702-55-7
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Formula:
C4H3ClN2O
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Chemical Name:
2-Chloropyrimidine-5-carbaldehyde
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Synonyms:
2-Chloropyrimidine-5-carbaldehyde;2-Chloropyrimidine-5-carboxaldehyde;2-Chloropyrimidine-5-carb...;2-ChloropyriMidine-5-carboxyaldehyde
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CAS No:
Characteristics
42.8
0.6
White to yellow Powder or Crystalline Powder
1.4±0.1 g/cm3
318.2°C at 760 mmHg
146.2±20.4 °C
1.601
Safety Information
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
H302
|Warning|H302 (50%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 2 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-Chloropyrimidine-5-carbaldehyde Use and Manufacturing
To a solution of 2-chloro-5-vinylpyrimidine (O.lg, 0.7 mmol) in dioxane (ImL) and water (ImL) was added 2, 6-lutidine (0.188g, 1.76 mmol) followed by the addition of osmium tetroxide (3.5mg, 0.007 mmol) and sodium periodate (0.59g, 2.81 mmol). Stirred the reaction mass for 2- 3h at room temperature. Then quenched with ethyl acetate and water. The ethyl acetate layer was washed with water followed by brine. Dried and concentrated the organic layer under vacuum. The residue was purified by column chromatography by eluting with a 20percent ethyl acetate -hexane system to afford the title compound (0.04g, 40percent ). 3.0 g of Arnold salt was added to 15 ml of methanol and 5 ml of water.Thereafter, 0.73 g of chloroformamidine hydrochloride and 0.53 g of sodium hydrogencarbonate were added thereto.The temperature was raised to 50 C to react. After 6 h of reaction, water was added to the system, and ethyl acetate was extracted.The opposite of water, The combined organic layers were washed with water, dried over anhydrous sodium sulfate and evaporatedThe yield was 83%.(3) Add 5.4 g (37.5 mmol) of To the round bottom flask was added 3.0 g of 2-hydroxy-5-aldehyde pyrimidine dissolved in 30 ml of acetonitrile. Add 5.56g phosphorus oxychloride and 0.53g N, N-dimethylaniline, The temperature was raised to 80 C and refluxed for 4 hours, and the reaction of the starting material by TLC was completed. After the reaction system is cooled to room temperature, an aqueous solution of sodium carbonate is added to the system. It was extracted with ethyl acetate and washed with water twice more. Evaporate dry. Obtaining 2.89 g of 2-chloro-5-aldehyde pyrimidine, a compound of formula II, The yield was 84%.To a stirring solution of Add ammonia (25%) (1.200g) to THF (50 mL) containing
Computed Properties
Molecular Weight:142.54
XLogP3:0.6
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:1
Exact Mass:141.9933904
Monoisotopic Mass:141.9933904
Topological Polar Surface Area:42.8
Heavy Atom Count:9
Complexity:101
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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2-Chloropyrimidine-5-carbaldehyde
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