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Name	2,3-Dichlorobenzaldehyde	EINECS	228-711-3
CAS No.	6334-18-5	Density	1.4 g/cm³
PSA	17.07000	LogP	2.80590
Solubility	Practically insoluble in water	Melting Point	64-67 °C(lit.)
Formula	C₇H₄Cl₂O	Boiling Point	242.9 °C at 760 mmHg
Molecular Weight	175.014	Flash Point	99.2 °C
Transport Information	UN 3261 8/PG 2	Appearance	white crystalline powder
Safety	26-36/37/39-45-37/39	Risk Codes	34-36/37/38
Molecular Structure		Hazard Symbols	Xi, C
Synonyms	Benzaldehyde, 2,3-dichloro-;2,3-Dichlorobenzaldehyde (2,3-DCBA);	Article Data	27

2,3-Dichlorobenzaldehyde Synthetic route

: N'-(2,3-dichloro-benzylidene)-N,N-dimethyl-hydrazine

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
With silica gel; iron(III) chloride for 0.01h; microwave irradiation;	89%
With K5 In acetonitrile at 20℃; for 0.75h;	84%

: 4414-54-4
2,3-dichlorobenzaldehyde oxime

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
With quinolinium monofluorochromate(VI) In acetonitrile for 5h; Oxidation; Heating;	85%
With caro's acid; silica gel for 0.03h; deoximation; Irradiation;	80%

: 2-(2,3-dichloro-phenyl)-[1,3]dithiolane

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
With tert.-butylhydroperoxide In methanol; water Heating;	80%

: 38594-42-2
2,3-dichlorobenzyl alcohol

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
With eosin y In dimethyl sulfoxide at 80℃; for 24h; Irradiation;	53%
With copper(l) iodide; di-tert-butyl peroxide; (E)-N-((Z)-4-((2,6-dimethylphenyl)amino)pent-3-en-2-ylidene)-2,6-dimethylaniline In N,N-dimethyl-formamide at 90℃; for 6h; Sealed tube; Inert atmosphere;	93 %Chromat.
With hydrogen bromide; dihydrogen peroxide In 1,4-dioxane at 25℃; for 7h; Temperature;	48.19 g

: 17257-79-3
3,4-epoxy-2-pentanone

: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

A: 6334-18-5
2,3-dichlorobenzylaldehyde

B: 4,5-Dichloro-benzene-1,3-dicarbaldehyde

Conditions

Conditions	Yield
With trichlorophosphate Product distribution; RT, 30 min, heating, 4-4.5 h; different epoxy ketones;	A 18% B 30%
With trichlorophosphate RT, 30 min, heating, 4-4.5 h;	A 18% B 30%

: 32768-54-0
2,3-dichlorotoluene

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
With sodium molybdate; dihydrogen peroxide; cobalt(II) acetate; acetic acid; sodium bromide at 90℃; Temperature;	29%
With bromine at 180 - 200℃; Erhitzen des Reaktionsgemisches mit konz. Schwefelsaeure auf 100-140grad;
(i) Br2, (UV-irradiation), (ii) aq. H2SO4; Multistep reaction;
Multi-step reaction with 3 steps 1: 2,2'-azobis(isobutyronitrile); bromine / 1,2-dichloro-ethane / 75 °C 2: water; sodium carbonate / 8 h / Reflux 3: dihydrogen peroxide; hydrogen bromide / 1,4-dioxane / 7 h / 25 °C View Scheme

: 6705-49-3
7-oxabicyclo[4.1.0]heptan-2-one

: 68-12-2, 33513-42-7
N,N-dimethyl-formamide

A: 6334-18-5
2,3-dichlorobenzylaldehyde

B: 2-chloroisophthalaldehyde

Conditions

Conditions	Yield
With trichlorophosphate RT, 30 min, heating, 4-4.5 h;	A 13% B 24%

: 111011-80-4
2-acetonyl-5,5-dimethyl-2-oxo-1,3,2-dioxaphosphorinane

: 1,2-dichloro-3-(dimorpholinomethyl)benzene

A: 6334-18-5
2,3-dichlorobenzylaldehyde

B: 115578-90-0
(E)-2,2-dimethyl-1,3-propanediyl α-acetyl-2,3-dichlorostyrylphosphonate

C: (Z)-2,2-dimethyl-1,3-propanediyl α-acetyl-2,3-dichlorostyrylphosphonate

Conditions

Conditions	Yield
With trifluoroacetic acid 1) toluene, 2) r.t., 1.0 h; Yield given. Multistep reaction. Title compound not separated from byproducts;	A 11% B n/a C n/a
With chloroacetic acid In toluene for 3h; Ambient temperature; Yield given. Title compound not separated from byproducts;	A 7% B n/a C n/a

: 75-17-2
formaldoxime

: 608-27-5
2,3-dichloroaniline

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
(i) aq. HCl, NaNO2, (ii) /BRN= 1697325/, CuSO4, Na2SO4, NaOAc, (iii) acid; Multistep reaction;
With hydrogenchloride; sodium acetate; copper(II) sulfate; sodium nitrite Yield given. Multistep reaction;
Multistep reaction;

: 29027-17-6
2-chloro-3-methylaniline

: 6334-18-5
2,3-dichlorobenzylaldehyde

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: Diazotization.Erwaermen der Diazoniumsalz-Loesung mit CuCl 2: bromine / 180 - 200 °C / Erhitzen des Reaktionsgemisches mit konz. Schwefelsaeure auf 100-140grad View Scheme

2,3-Dichlorobenzaldehyde Chemical Properties

Product Name: 2,3-Dichlorobenzaldehyde (CAS NO.6334-18-5)

Molecular Formula: C₇H₄Cl₂O
Molecular Weight: 175.01g/mol
Mol File: 6334-18-5.mol
EINECS: 228-711-3
Appearance: white crystalline powder
Melting Point: 64-67 °C(lit.)
Boiling point: 242.9 °C at 760 mmHg
Flash Point: 99.2 °C
Density: 1.4 g/cm³
Sensitive: Air Sensitive
Index of Refraction: 1.6
Molar Refractivity: 42.79 cm³
Molar Volume: 125 cm³
Surface Tension: 45.1 dyne/cm
Enthalpy of Vaporization: 47.99 kJ/mol
Vapour Pressure: 0.0331 mmHg at 25°C
XLogP3-AA: 3
H-Bond Donor: 0
H-Bond Acceptor: 1
Structure Descriptors of 2,3-Dichlorobenzaldehyde (CAS NO.6334-18-5):
IUPAC Name: 2,3-dichlorobenzaldehyde
Canonical SMILES: C1=CC(=C(C(=C1)Cl)Cl)C=O
InChI: InChI=1S/C7H4Cl2O/c8-6-3-1-2-5(4-10)7(6)9/h1-4H
InChIKey: LLMLNAVBOAMOEE-UHFFFAOYSA-N
Product Categories: Aromatic Aldehydes & Derivatives (substituted); Felodipine; Aldehydes; C7; Carbonyl Compounds

2,3-Dichlorobenzaldehyde Uses

2,3-Dichlorobenzaldehyde (CAS NO.6334-18-5) is the Pharmaceutical Intermediates,and 2,3-Dichlorobenzaldehyde is used in the synthesis of FELODIPINE, CHLORINE-dimensional, the synthesis of Lamotrigine.

2,3-Dichlorobenzaldehyde Safety Profile

Safety Information of 2,3-Dichlorobenzaldehyde (CAS NO.6334-18-5):
Hazard Codes: C Corrosive ,Xi Irritant
Risk Statements: 34-36/37/38
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36/37/39-45-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: UN 3261 8/PG 2
WGK Germany: 2
F: 10
Hazard Note: Corrosive
HazardClass: 8
PackingGroup: III
HS Code: 29130000

2,3-Dichlorobenzaldehyde Standards and Recommendations

Purity≥98.0% (GC)
Loss on drying ≤0.5%
Residue On Ignition≤0.5%

2,3-Dichlorobenzaldehyde Specification

2,3-Dichlorobenzaldehyde , its CAS NO. is 6334-18-5, the synonyms are Benzaldehyde, 2,3-dichloro- ; Benzaldehyde, dichloro- ; Benzaldehyde, 2,3-dichloro- .

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