Issue 31, 2017

Gold-catalyzed intermolecular cyclocarboamination of ynamides with 1,3,5-triazinanes: en route to tetrahydropyrimidines

Abstract

Gold-catalyzed regioselective cyclocarboamination of ynamides with 1,3,5-triazinanes opens a facile and modular access to valuable 5-aminotetrahydropyrimidines in good to excellent yields. It constitutes an unprecedented yet challenging annulation of ynamides with unstrained saturated heterocycles. This new protocol is distinguished by easy operation, readily available starting materials, stable four-atom building units, good functional-group compatibility and scaling-up potential. The preliminary mechanistic studies indicate that the present intermolecular cyclocarboamination arises from a pseudo-three-component [2+2+2] cycloaddition.

Graphical abstract: Gold-catalyzed intermolecular cyclocarboamination of ynamides with 1,3,5-triazinanes: en route to tetrahydropyrimidines

Supplementary files

Article information

Article type
Communication
Submitted
30 Jan 2017
Accepted
02 Mar 2017
First published
02 Mar 2017

Chem. Commun., 2017,53, 4304-4307

Gold-catalyzed intermolecular cyclocarboamination of ynamides with 1,3,5-triazinanes: en route to tetrahydropyrimidines

Z. Zeng, H. Jin, X. Song, Q. Wang, M. Rudolph, F. Rominger and A. S. K. Hashmi, Chem. Commun., 2017, 53, 4304 DOI: 10.1039/C7CC00789B

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