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5-Nitrothiophene-2-carboxaldehyde

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Name

5-Nitrothiophene-2-carboxaldehyde

EINECS 224-850-9
CAS No. 4521-33-9 Density 1.534 g/cm3
PSA 91.13000 LogP 1.99200
Solubility Insoluble in water. Melting Point 75-77 °C
Formula C5H3NO3S Boiling Point 297.2 °C at 760 mmHg
Molecular Weight 157.15 Flash Point 133.5 °C
Transport Information N/A Appearance yellow solid
Safety 26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 4521-33-9 (5-NITROTHIOPHENE-2-CARBOXALDEHYDE) Hazard Symbols IrritantXi
Synonyms

2-Formyl-5-nitrothiophene;2-Nitrothiophene-5-carboxaldehyde;5-Nitro-2-formylthiophene;5-Nitro-2-thienylaldehyde;5-Nitro-2-thienylcarboxaldehyde;5-Nitro-2-thiophenealdehyde;5-Nitro-2-thiophenecarboxaldehyde;5-Nitrothiophene-2-carbaldehyde;NSC 168226;5-Nitrothiophene-2-carboxaldehyde;

Article Data 30

5-Nitrothiophene-2-carboxaldehyde Synthetic route

20898-85-5

(5-nitrothiophen-2-yl)methanol

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With silica-supported Jones reagent In dichloromethane for 0.00269444h;99.8%
14289-24-8

5-nitrothiophene-2-carboxaldehyde diacetate

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With hydrogenchloride In methanol; water at 65℃; for 8h;80%
With ethanol; sulfuric acid
With hydrogenchloride
With sulfuric acid
20898-86-6

2-(chloromethyl)-5-nitrothiophene

147225-22-7

2-lithio-2-nitropropane

A

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

B

74786-70-2

2-isopropylidenemethyl-5-nitrothiophene

C

2-(2-methyl-2-nitropropyl)-5-nitrothiophene

D

1,2-bis-(5-nitro-2-thienyl)ethylene

Conditions
ConditionsYield
In methanol for 0.25h; Ambient temperature; Irradiation;A n/a
B 61%
C 7%
D 5%
20898-86-6

2-(chloromethyl)-5-nitrothiophene

A

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

B

74786-70-2

2-isopropylidenemethyl-5-nitrothiophene

C

2-(2-methyl-2-nitropropyl)-5-nitrothiophene

D

1,2-bis-(5-nitro-2-thienyl)ethylene

Conditions
ConditionsYield
With lithium 2-nitropropane In methanol for 0.25h; Ambient temperature; Irradiation;A n/a
B 61%
C 7%
D 5%
98-03-3

thiophene-2-carbaldehyde

A

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

B

57500-53-5

4-nitrothiophene-2-carbaldehyde

Conditions
ConditionsYield
With sulfuric acid; nitric acid at 0℃; for 0.5h;A 13%
B 46%
With sulfuric acid; nitric acid at -10℃; for 0.0833333h;A n/a
B 40%
With sulfuric acid; potassium nitrate at 0℃; for 0.5h; Inert atmosphere; Schlenk technique;A n/a
B 40%
87207-17-8

2-(1'-chloro-2',2'-dimethylpropyl)-5-nitrothiophene

A

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

B

87207-23-6

2,2-dimethyl-1-(5'-nitro-2'-thienyl)-1-propanol

C

83054-95-9

2,2-dimethyl-1-(5'-nitro-2'-thienyl)-propane-1-one

Conditions
ConditionsYield
With 2-lithio-2-nitropropane In dimethyl sulfoxide at 20℃; for 1.1h;A 7%
B 7%
C 42%
With 2-lithio-2-nitropropane In dimethyl sulfoxide at 20℃; for 1.1h; Mechanism; Irradiation;A 7%
B 5%
C 42%
20898-83-3

(5'-nitro-2'-thienyl)methyl acetate

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With sodium thiophenolate In dimethyl sulfoxide for 0.2h;15%
20898-86-6

2-(chloromethyl)-5-nitrothiophene

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With sodium thiophenolate In dimethyl sulfoxide for 0.166667h;7%
98-03-3

thiophene-2-carbaldehyde

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

Conditions
ConditionsYield
With nitric acid; acetic anhydride at -14℃; Kinetics; Rate constant; Thermodynamic data; other temperatures, E, lg A, ΔH(excit.), ΔS(excit.);
98-03-3

thiophene-2-carbaldehyde

7664-93-9

sulfuric acid

7697-37-2

nitric acid

A

4521-33-9

5-nitro-2-thiophenecarboxaldehyde

B

57500-53-5

4-nitrothiophene-2-carbaldehyde

5-Nitrothiophene-2-carboxaldehyde Specification

The 5-Nitrothiophene-2-carboxaldehyde, with the CAS registry number 4521-33-9, it is also named as 2-Thiophenecarboxaldehyde,5-nitro-. The product's categories are Heterocycles; Thiophenes. Besides, it is yellow solid, which should be sealed in a dark, ventilated and dry place. In addition, its molecular formula is C5H3NO3S and molecular weight is 157.15. Its systematic name is 5-Nitrothiophene-2-carboxaldehyde.

Physical properties about 5-Nitrothiophene-2-carboxaldehyde are: (1)EINECS: 224-850-9; (2)ACD/LogP: 1.15; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): 1.15; (5)ACD/LogD (pH 7.4): 1.15; (6)ACD/BCF (pH 5.5): 4.41; (7)ACD/BCF (pH 7.4): 4.41; (8)ACD/KOC (pH 5.5): 100.6; (9)ACD/KOC (pH 7.4): 100.6; (10)#H bond acceptors: 4; (11)#H bond donors: 0; (12)#Freely Rotating Bonds: 2; (13)Polar Surface Area: 91.13 Å2; (14)Index of Refraction: 1.662; (15)Molar Refractivity: 37.93 cm3; (16)Molar Volume: 102.4 cm3; (17)Polarizability: 15.03×10-24cm3; (18)Surface Tension: 65.1 dyne/cm; (19)Density: 1.534 g/cm3; (20)Flash Point: 133.5 °C; (21)Melting point: 75-77 °C; (22)Enthalpy of Vaporization: 53.7 kJ/mol; (23)Boiling Point: 297.2 °C at 760 mmHg; (24)Vapour Pressure: 0.00137 mmHg at 25 °C.

Preparation of 5-Nitrothiophene-2-carboxaldehyde: 5-Nitrothiophene-2-carboxaldehyde can be prepared by thiophene-2-carbaldehyde.



This reaction needs HNO3, H2SO4 at temperature of 0 °C. The reaction time is 30 min. The yield is 46 %.

Uses of 5-Nitrothiophene-2-carboxaldehyde: it can react with benzene-1,2-diamine to get 2-(5-nitro-thiophen-2-yl)-1H-benzoimidazole.



This reaction will occur at temperature of 350 °C. The yield is 50 %.

When you are using 5-Nitrothiophene-2-carboxaldehyde, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. In case of contact with eyes, please rinse immediately with plenty of water and seek medical advice.

People can use the following data to convert to the molecule structure.
(1)SMILES:O=Cc1sc([N+](=O)[O-])cc1
(2)Std. InChI:InChI=1S/C5H3NO3S/c7-3-4-1-2-5(10-4)6(8)9/h1-3H;
(3)Std. InChIKey:CHTSWZNXEKOLPM-UHFFFAOYSA-N;

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