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| | 3,5-Dichlorobenzaldehyde Basic information |
| Product Name: | 3,5-Dichlorobenzaldehyde | | Synonyms: | 3,5-Dichlorobenzaldehyde, Tech.;3,5-Dichlorobenzalde;3,5-Dichlorobenzaldehyde,97%;3,5- twochlorobenzeneforMaldehyde;RARECHEM AQ A2 0002;3,5-dichloro-benzaldehyd;Benzaldehyde, 3,5-dichloro-;3,5-DICHLOROBENZALDEHYDE | | CAS: | 10203-08-4 | | MF: | C7H4Cl2O | | MW: | 175.01 | | EINECS: | 233-499-0 | | Product Categories: | Aldehydes;C7;Carbonyl Compounds;Aromatic Aldehydes & Derivatives (substituted);Benzaldehyde | | Mol File: | 10203-08-4.mol |  |
| | 3,5-Dichlorobenzaldehyde Chemical Properties |
| Melting point | 63.5-65.5 °C (lit.) | | Boiling point | 235-240°C | | density | 1.3456 (rough estimate) | | refractive index | 1.5756 (estimate) | | Fp | 235-240°C | | storage temp. | Inert atmosphere,2-8°C | | form | powder to crystal | | color | White to Light yellow | | Water Solubility | Insoluble in water. | | Sensitive | Air Sensitive | | BRN | 2040553 | | InChI | 1S/C7H4Cl2O/c8-6-1-5(4-10)2-7(9)3-6/h1-4H | | InChIKey | CASRSOJWLARCRX-UHFFFAOYSA-N | | SMILES | [H]C(=O)c1cc(Cl)cc(Cl)c1 | | CAS DataBase Reference | 10203-08-4(CAS DataBase Reference) | | NIST Chemistry Reference | 3,5-Dichlorobenzaldehyde(10203-08-4) | | EPA Substance Registry System | Benzaldehyde, 3,5-dichloro- (10203-08-4) |
| Hazard Codes | C,Xi,Xn | | Risk Statements | 34-36/37/38-22 | | Safety Statements | 26-36/37/39-45-22-37/39 | | RIDADR | UN 3261 8/PG 2 | | WGK Germany | 3 | | F | 10 | | Hazard Note | Corrosive | | TSCA | TSCA listed | | HazardClass | 8 | | PackingGroup | III | | HS Code | 29130000 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Aquatic Chronic 2
Skin Irrit. 2
Skin Sens. 1A |
| | 3,5-Dichlorobenzaldehyde Usage And Synthesis |
| Chemical Properties | white to slightly yellow fluffy powder | | Uses | 3,5-Dichlorobenzaldehyde was used as starting reagent during synthesis of β-aryl-β-amino acid enantiomers. It was used in the synthesis of dichlorophenylpyruvic acid. | | Synthesis | General procedure for the synthesis of 3,5-dichlorobenzaldehyde from 3,5-dichloro-1-methylbenzene: (1) Apparatus: a tubular reactor was installed with reference to Fig. 2, and the type of tubing was a combination of (3a + 3d) DC channels and reinforced mixed-cake rectangular flat tubes, with the diameter and volume determined according to the flow rate and reaction conditions. (2) A mixed solution was prepared by dissolving 6.06 g of cobalt acetate and 6.06 g of sodium molybdate in 200 ml of 3,5-dichlorotoluene and 200 ml of acetic acid, respectively, where n (cobalt acetate): n (3,5-dichlorotoluene) = 0.015: 1. An H2O2-acetic acid solution was prepared by dissolving 6.06 g of sodium bromide in 20% H2O2, where n (sodium bromide): n (3, 5-dichlorotoluene) = 0.015: 1. The 3,5-dichlorotoluene-acetic acid solution and H2O2-acetic acid solution were injected into a tubular reactor at a flow rate of 8.33 ml/min and 16.67 ml/min, respectively. The reactor was subjected to continuous heat exchange via a thermostatic pump maintaining n(H2O2):n(3,5-dichlorotoluene) = 2:1. A microchannel reactor shown in Fig. 2 was used, with a controlled reaction temperature of 105 °C and a residence time of 600 s. The reaction was carried out at the outlet of the tubular reactor at a flow rate of 8.33 ml/min and 8.67 ml/min, respectively. After completion of the reaction, the outlet was cooled to 0 °C and the reaction was quenched with dichloromethane. The conversion of 3,5-dichlorotoluene was analyzed by GC to be 60.8% and the yield of 3,5-dichlorobenzaldehyde was 39.2%. | | References | [1] Patent: CN106588606, 2017, A. Location in patent: Paragraph 0029-0052 |
| | 3,5-Dichlorobenzaldehyde Preparation Products And Raw materials |
| Raw materials | 3 5-DICHLOROTOLUENE | | Preparation Products | L-Phenylalanine, N-[(5,7-dichloro-1,2,3,4-tetrahydro-6-isoquinolinyl)carbonyl]-3-(methylsulfonyl)-, phenylmethyl ester, hydrochloride (1:1)-->1,3-DICHLORO-5-(CHLOROMETHYL)BENZENE-->3',5'-Dichloroacetophenone-->Benzenemethanamine, N-butyl-3,5-dichloro--->3,5-Dichlorobenzophenone-->3,5-DICHLOROBENZALDEHYDE OXIME-->Benzenepropanoic acid, β-amino-3,5-dichloro-, ethyl ester-->3-(3,5-DICHLORO-PHENYL)-PROPIONALDEHYDE-->Benzenepropanoic acid, β-amino-3,5-dichloro-, ethyl ester, hydrochloride (1:1)-->3-AMINO-3-(3,5-DICHLORO-PHENYL)-PROPIONIC ACID |
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