Carbic anhydride

• Formula: C₉H₈O₃
• Molecular weight: 164.1580
• IUPAC Standard InChI: InChI=1S/C9H8O3/c10-8-6-4-1-2-5(3-4)7(6)9(11)12-8/h1-2,4-7H,3H2/t4-,5-,6-,7+/m0/s1 Copy

  
• IUPAC Standard InChIKey: KNDQHSIWLOJIGP-ZTYPAOSTSA-N Copy
• CAS Registry Number: 129-64-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Stereoisomers:
  • (1α,2α,3β,6β)-1,2,3,6-tetrahydro-3,6-methanophthalic anhydride
• Other names: (3aα,4α,7α,7aα)-3a,4,7,7a-Tetrahydro-4,7-methano-isobenzofuran-1,3-dione; 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, (3aα,4α,7α,7aα)-; 8,9,10-Trinorborn-5-ene-2,3-dicarboxylic anhydride; endo-Himic acid anhydride; endo-3,6-Methylene-1,2,3,6-tetrahydrophthalic anhydride; endo-5-Norbornene-2,3-dicarboxylic anhydride; endo,cis-5-Norbornene-2,3-dicarboxylic anhydride; Endic anhydride; Nadic anhydride; 3,6-Endomethylene-δ4-tetrahydrophthalic anhydride; 5-Norbornene-endo-2,3-dicarboxylic anhydride; 5-Norbornene-2,3-dicarboxylic anhydride, cis-endo-; 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, (3aR,4S,7R,7aS)-rel-; Bicyclo[2.2.1hept-5-ene-2-endo,3-endo-dicarboxylic anhydride; Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid endo-cis-anhydride; cis-5-Norbornene-endo-2,3-dicarboxylic anhydride; NSC 102277
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• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Phase change data
  • Mass spectrum (electron ionization)
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Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

 +  =

By formula: C₄H₂O₃ + C₅H₆ = C₉H₈O₃

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Breslauer and Kabakoff, 1974
Breslauer, K.J.; Kabakoff, D.S., Enthalpy of the Diels-Alder reaction of cyclopentadiene and maleic anhydride, J. Org. Chem., 1974, 39, 721-722. [all data]

Rogers and Quan, 1973
Rogers, F.E.; Quan, S.W., Thermochemistry of the Diels-Alder reaction. III. Heat of addition of cyclopentadience to maleic anhydride, J. Phys. Chem., 1973, 77, 828-831. [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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