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A general synthesis of diaryl cyclic diamidines

✍ Scribed by Jarosław Spychała

Book ID
104261101
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
216 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

A convenient and general method has been developed for directly converting bis-nitriles to cyclic diamidines using reagents derived from diaminoalkanes saturated with hydrogen sulfide. A 1:1 mixture of a diaminoalkane and ethyl alcohol (or without) was effective in most cases (72-88%). The synthetic utility of this methodology in the preparation of 1,3,6,8-tetrakis(cyclic amidino)pyrenes from 1,3,6,8-tetracyanopyrene is described.

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