Facile and efficient addition of terminal alkynes to benzotriazole esters: synthesis of d-erythro-sphingosine using ynones as the key intermediate
作者:José Antonio Morales-Serna、Alejandro Sauza、Gabriela Padrón de Jesús、Rubén Gaviño、Gustavo García de la Mora、Jorge Cárdenas
DOI:10.1016/j.tetlet.2013.10.082
日期:2013.12
From the perspective of synthesis, ynones are compounds of considerable interest because of their occurrence in a wide variety of biologically active molecules and as key synthetic intermediates. In this context, a facile and highly efficient synthesis of ynones was developed based on the high reactivity of benzotriazole esters formed in situ. Lithium acetylides can alkylate various carboxylic acids