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
A Straightforward Synthesis of Ynones by Reaction of Dimethylalkynylaluminum Reagents with Acid Chlorides
作者:Baomin Wang、Martine Bonin、Laurent Micouin
DOI:10.1021/jo050760y
日期:2005.7.1
Alkynyldimethylaluminum reagents react with various aromatic and aliphatic acidchlorides in a fast and efficient way. This reaction provides a simple entry to numerous ynones, using readily available, inexpensive, and nontoxic metalating agent, and does not require any transition metal as a catalyst.