Reaction of dichloromaleic anhydride with 1,8-diaminonaphthalene: Synthesis and X-ray diffraction structure of 8,9-dichloropyrrolo[1,2-a]perimidin-10-one View Full Text


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Article Info

DATE

2004-10

AUTHORS

William H. Watson, Tao Chen, Michael G. Richmond

ABSTRACT

The reaction of dichloromaleic anhydride with 1,8-diaminonaphthalene in refluxing toluene or 1,2-dichloroethane produces the new heterocyclic compound 8,9-dichloropyrrolo[1,2-a]perimidin-10-one in low yields. 8,9-Dichloropyrrolo[1,2-a]perimidin-10-one has been isolated by column chromatography and characterized in solution by IR, 1H NMR, and UV/vis spectroscopies. The solid-state structure was unequivocally established by single-crystal X-ray diffraction analysis. 8,9-Dichloropyrrolo[1,2-a]perimidin-10-one crystallizes in the monoclinic space group P21/c, a = 7.475(1)Å, b = 10.650(2)Å, c = 14.468(2)Å, β = 94.478(2)°, V = 1148.3(3) Å3, Z = 4, and dcalc = 1.672 Mg/m3; R = 0.0289, Rw = 0.0762 for 1644 reflections with I > 2σ(I). The nature of the HOMO and LUMO in 8,9-dichloropyrrolo[1,2-a]perimidin-10-one has been determined by extended Hückel molecular orbital calculations, and these data are discussed relative to the cyclic voltammetric data obtained at a platinum electrode. More... »

PAGES

697-703

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/b:jocc.0000047646.33079.d2

DOI

http://dx.doi.org/10.1023/b:jocc.0000047646.33079.d2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1029246724


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