使用初级阿里法氨基的分支1,3-二烯的Ni-催化酶选择性分子间化
Gaël Tran1, Wen Shao1, Clément Mazet1
1Department of Organic Chemistry , University of Geneva , 30 quai Ernest Ansermet , 1211 Geneva , Switzerland.
一种新的催化反应使分枝二烯的反选择性水胺化成为可能,产生有价值的性胺. 这种方法在合成复杂氨酸方面具有广泛的适用性和高选择性.
科学领域:
- 有机化学
- 催化剂
- 不对称的合成
背景情况:
- 奇拉胺是重要的合成中间体.
- 开发有效的催化合成方法仍然是一个挑战.
研究的目的:
- 报告一种新的催化分子间对分支的1,3-dienes的选择性化.
- 从易于获得的原料中直接获取奇拉胺.
主要方法:
- 使用分支的1,3-二烯和初级或二级氨基的催化反应.
- 使用31P核磁共振光谱,同位素标记 (2H) 和运动分析的机械研究.
主要成果:
- 这种反应具有广泛的适用性,具有高的区域性,化学性和酶选择性.
- 合成的氨基胺的产量很好.
- 机理学研究确定了Ni-π-合物复合物作为静止状态和外层核友性攻击作为速率决定.
结论:
- 开发的方法提供了一条有效的途径,以获得有价值的性氨酸.
- 机理性见解导致了反应条件的改善,增强了分支的1,3-dienes的反选择性胺化.
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