Amine-Catalyzed [3+2] Huisgen Cycloaddition Strategy for the Efficient Assembly of Highly Substituted 1,2,3-Triazoles
作者:Lei Wang、Shiyong Peng、Lee Jin Tu Danence、Yaojun Gao、Jian Wang
DOI:10.1002/chem.201103393
日期:2012.5.7
has been utilized to fully promote the Huisgen [3+2] cycloaddition with a broad spectrum of carbonyl compounds and azides, thereby permitting the efficient assembly of a vast pool of highly substituted 1,2,3‐triazoles. In particular, the employment of commonly used and commercially available carbonyl compounds has resulted in the introduction of a diverse set of functional groups, such as alkyl, aryl
Organocatalytic Synthesis of 1,2,3-Triazoles from Unactivated Ketones and Arylazides
作者:Mokhtaria Belkheira、Douniazad El Abed、Jean-Marc Pons、Cyril Bressy
DOI:10.1002/chem.201102046
日期:2011.11.11
complementary method to Huisgen's metal‐catalyzed triazole synthesis is described using unactivatedketones and arylazides as the substrates and proline as an organocatalyst. Dramatic acceleration was observed for this reaction using microwave activation and high regio‐ and chemoselectivities were obtained for a wide range of ketones and arylazides (see scheme).
Organocatalytic 1,3-dipolar cycloaddition reactions of ketones and azides with water as a solvent
作者:Dwun Kit Jonathan Yeung、Tao Gao、Jiayao Huang、Shaofa Sun、Haibing Guo、Jian Wang
DOI:10.1039/c3gc41126e
日期:——
We reported an enamine catalyzed strategy to fully promote a 1,3-dipolarcycloaddition to access a vast pool of substituted 1,2,3-triazoles with water as the only solvent.