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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 41, 2011 - Issue 24
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Original Articles

Convenient Preparation of Bicyclic Guanidines

Sergei Usachev Institute of Chemical Physics of the Russian Academy of Sciences, Moscow, Russian Federation
&
Alexei Gridnev Institute of Chemical Physics of the Russian Academy of Sciences, Moscow, Russian FederationCorrespondence[email protected]
Pages 3683-3688 | Received 23 Aug 2010, Published online: 22 Aug 2011
 
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Abstract

New synthesis of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) was developed from inexpensive and nontoxic chemicals. Guanidine, cyanamide, or their derivatives are heated with bis (3-aminopropyl)amine and a strong acid at 140–180 °C for 7–9 h to form TBD in 95–97% yield.

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