3-Nitrobenzaldehyde

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3-Nitrobenzaldehyde is an organic aromatic compound containing a nitro group meta-substituted to an aldehyde. 3-Nitrobenzaldehyde is the primary product obtained via the mono-nitration of benzaldehyde with nitric acid.

3-Nitrobenzaldehyde[1][2]
Skeletal formula of 3-nitrobenzaldehyde
Ball-and-stick model of the 3-nitrobenzaldehyde molecule
Names
Preferred IUPAC name
3-Nitrobenzaldehyde
Other names
m-Nitrobenzaldehyde, meta-nitrobenzaldehyde
Properties
C7H5NO3
Molar mass 151.121 g·mol−1
Appearance Yellowish to brownish crystalline powder or granulate
Melting point 58.5 °C (137.3 °F; 331.6 K)
Boiling point 164 °C (327 °F; 437 K) at 23 mmHg
16.3 mg/mL
-68.55·10−6 cm3/mol
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.002.520 Edit this at Wikidata
EC Number
  • 202-772-6
UNII
  • InChI=1S/C7H5NO3/c9-5-6-2-1-3-7(4-6)8(10)11/h1-5H checkY
    Key: ZETIVVHRRQLWFW-UHFFFAOYSA-N checkY
  • InChI=1/C7H5NO3/c9-5-6-2-1-3-7(4-6)8(10)11/h1-5H
    Key: ZETIVVHRRQLWFW-UHFFFAOYAC
  • O=[N ]([O-])c1cc(C=O)ccc1
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Harmful,Potentially mutagenic
GHS labelling:
GHS07: Exclamation markGHS09: Environmental hazard
Warning
H302, H315, H319, H335, H411
P261, P264, P270, P271, P273, P280, P301 P312, P302 P352, P304 P340, P305 P351 P338, P312, P321, P330, P332 P313, P337 P313, P362, P391, P403 P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Synthesis

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The synthesis of 3-nitrobenzaldehyde is accomplished via nitration of benzaldehyde, which yields mostly the meta-isomer. Product distribution is about 19% for the ortho-, 72% for the meta- and 9% for the para isomers.[3][4]

Uses

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3-Nitrobenzaldehyde is a precursor to the drug Tipranavir. It is a mainstay in the synthesis of Dihydropyridine calcium channel blockers. Via selective reduction of the nitro group, it is a precursor to the diazonium salt.[5]

References

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  1. ^ 3-Nitrobenzaldehyde
  2. ^ "3-Nitrobenzaldehyde MSDS". Archived from the original on 2011-07-07. Retrieved 2009-07-18.
  3. ^ Structure of Benzene, California State University Dominguez Hills
  4. ^ Brühne, Friedrich; Wright, Elaine (2011). "Benzaldehyde". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a03_463.pub2. ISBN 978-3527306732.
  5. ^ Johannes S. Buck and Walter S. Ide (1933). "m-Chlorobenzaldehyde". Organic Syntheses. 13: 28. doi:10.15227/orgsyn.013.0028.