作者:Allen D. Aloise、Mark E. Layton、Matthew D. Shair
DOI:10.1021/ja0055920
日期:2000.12.1
ring structures represent an underdeveloped area of organic synthesis. The Rh(I)-catalyzed cyclization of 4-pentenals to cyclopentanones (Scheme 1,1 f 2), an intramolecular hydroacylation, is an example of such a reaction. 1 First reported 28 years ago by Sakai using RhCl(Ph3P)3, this reaction has remained largely limited to the synthesis of five-membered rings 2 due to competitive decarbonylation
涉及将过渡金属基催化剂插入 CH 键并随后产生环结构的反应代表了有机合成的一个欠发达领域。Rh(I) 催化的 4-戊烯醛环化成环戊酮(方案 1,1 f 2),一种分子内加氢酰化反应,就是这种反应的一个例子。1 Sakai 于 28 年前首次使用 RhCl(Ph3P)3 报道,由于随着环尺寸增加和环化速率降低,竞争性脱羰,该反应主要限于五元环 2 的合成。将此反应应用于合成中等环(如环辛烯酮)将是一种有用的转化;3