Synthesis and Crystallography of 8-Halonaphthalene-1-Carbonitriles and Naphthalene-1,8-Dicarbonitrile
作者:Wayland E. Noland、Venkata Srinivasarao Narina、Doyle Britton
DOI:10.3184/174751911x13222107572093
日期:2011.12
A convenient and high-yielding three-step synthesis of 8-halonaphthalene-1-carbonitriles has been achieved by ring opening of 1H-naphtho[1,8-de][1,2,3]triazine with the corresponding halides as the key step. Naphthalene-1,8-dicarbonitrile also has been synthesised from 8-bromonaphthalene-1-carbonitrile via palladium-catalysed cyanation of the aryl bromide. The crystal structures of 8-chloronaphthalene-1-carbonitrile
通过1H-萘并[1,8-de][1,2,3]三嗪的开环,以相应的卤化物为关键,实现了8-卤代萘-1-腈的方便、高产的三步合成步。Naphthalene-1,8-dicarbonitrile 也由 8-bromonaphthalene-1-carbonitrile 通过钯催化的芳基溴氰化合成。8-氯萘-1-腈的晶体结构、溴类似物的A多晶型物和萘-1,8-二腈的晶体结构是同晶的,具有正交对称性。溴化合物和碘类似物的 B 多晶型物也是同晶型的,但具有单斜对称性。在所有卤代腈中,分子在卤素原子和腈基团的位置上都是无序的。在任何固体中都不存在分子间 X···NC 相互作用。