1,8-diaminonaphthalene

1,8-Diaminonaphthalene

1,8-Diaminonaphthalene

Chemical compound

1,8-Diaminonaphthalene is an organic compound with the formula C10H6(NH2)2. It is one of several isomeric naphthalenediamines. It is a colorless solid that darkens in air due to oxidation. It is a precursor to commercial pigments.[1]

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Synthesis and reactions

Chemical structure of 12-phthaloperinone, a derivative of 1,8-diaminonaphthalene

It is prepared by reduction of 1,8-dinitronaphthalene, which in turn is obtained as a mixture of isomers by nitration of 1-nitronaphthalene.

Upon treatment with phthalic anhydride derivatives, the diamine converts to phthaloperinones.[2] The derivative from phthalic anhydride itself, Solvent Orange 60, is a useful orange pigment. It is a precursor to 1,8-bis(dimethylamino)naphthalene. This compound used to produce perimidines by various aldehydes.[3]

See also

References

  1. [1]
    Booth, Gerald (2005). "Naphthalene Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. ISBN 978-3527306732..
  2. [2]
    Mamada, Masashi; PéRez-BolíVar, César; Anzenbacher, Pavel (2011). "Green Synthesis of Polycyclic Benzimidazole Derivatives and Organic Semiconductors". Organic Letters. 13 (18): 4882–4885. doi:10.1021/ol201973w. PMID 21863817. S2CID 32185653.
  3. [3]
    F.K. Behbahani, F.M.Golchin (2017). "A new catalyst for the synthesis of 2-substituted perimidines catalysed by FePO4" (PDF). Journal of Taibah University for Science. 11 (1): 85–89. Bibcode:2017JTUS...11...85B. doi:10.1016/j.jtusci.2015.10.004. S2CID 98648448.
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