Titanium-Catalyzed Cyclopropanation of Boc-Protected Cyanohydrins: A Short Access to Aminocyclopropanecarboxylic Acid Derivatives
作者:Philippe Bertus、Morwenna Pearson-Long、Alice Beauseigneur、Philippe Karoyan、Jan Szymoniak
DOI:10.1055/s-0030-1258260
日期:2010.10
The preparation of protected 1-aminocyclopropanecarboxylic acid was performed from readily available and inexpensive starting materials, using titanium-catalyzed cyclopropanation as the key step. As an extension of this methodology, a diastereoselective synthesis of the cis-2-vinyl-substituted analogue is presented.
从易得且便宜的起始原料出发,通过钛催化的环丙烷化反应作为关键步骤,完成了受保护的1-氨基环丙烷羧酸的制备。作为这一方法的拓展,本文还介绍了顺式-2-乙烯基取代类似物的对映选择性合成。