A General Synthesis of Diaryl Cyclic Diamidines

Jaroslaw Spychala

doi:https://doi.org/10.1016/s0040-4039(99)00307-x

A General Synthesis of Diaryl Cyclic Diamidines

Abstract

A convenient and general method has been developed for directly converting bis-nitriles, e.g., I, to cyclic diamidines, e.g., II, using reagents derived from diaminoalkanes, e.g., H2NCH2CH2NH2, satd. with hydrogen sulfide. A 1:1 mixt. of a diaminoalkane and Et alc. (or without) was effective in most cases (72-88%). The synthetic utility of this methodol. in the prepn. of tetrakis(cyclic amidino)pyrenes III (R = H, Me) from 1,3,6,8-tetracyanopyrene is described.

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Jaroslaw Spychala dr

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Category:: Magazine publication
Type:: Magazine publication
Published in:: TETRAHEDRON LETTERS no. 40, edition 14, pages 2841 - 2844,
ISSN: 0040-4039
Title of issue:: TETRAHEDRON LETTERS strony 2841 - 2844
Publication year:: 1999
Bibliographic description:: Jaroslaw Spychala, A General Synthesis of Diaryl Cyclic Diamidines, Tetrahedron Letters, vol. 40(14), pages 2841-2844, 1999.
DOI:: Digital Object Identifier (open in new tab) https://doi.org/10.1016/s0040-4039(99)00307-x
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