一个有机催化不对称的chlorolactonization
Daniel C Whitehead1, Roozbeh Yousefi, Arvind Jaganathan
1Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA.
一种新的有机催化方法使得使用随时可用的试剂实现了对抗选择性化. 这种方法可以实现高的enantioselectivities合成有价值的奇拉乳.
科学领域:
- 有机化学 有机化学
- 不对称的合成方法
- 催化剂是一种催化剂.
背景情况:
- 在合成性乳腺素时,酶选择性化作用至关重要.
- 开发高效和选择性的催化系统仍然是一个挑战.
研究的目的:
- 开发一种新型的试剂控制的有机催化酶选择性化反应.
- 探索这种新合成方法的范围和局限性.
主要方法:
- 作为基质使用了4-烯酸.
- 作为有机催化剂,使用了0.1等价的 (DHQD) 2PHAL.
- 使用各种N-化丹作为终端源.
主要成果:
- 成功开发了一种试剂控制的有机催化酶选择性化.
- 在10个实例中实现了43%至90%的enantioselectivities.
- 演示了第一个对抗选择性试剂控制的烯酸脱氧化,接近合成有用的抗选择性.
结论:
- 开发的方法提供了一个新的路径,用于对抗选择性化.
- 这种有机催化方法提供了一种实用的方法,以高选择性获得性乳.
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