甲醇添加到二哈托协调的复合物中的 furan
1Department of Chemistry, University of Virginia, Charlottesville, VA 22901, USA.
Journal of the American Chemical Society
|September 13, 2001
概括
-复合物经过酸催化甲醇的添加,产生线氧-二复合物的立体选择性合成. 添加的甲基基组对金属碎片始终是反的,产品比率独立于起始材料比率.
科学领域:
- 有机金属化学 有机金属化学
- 合成化学 合成化学
背景情况:
- 已知具有 furan 连接体的复合体.
- 已经合成了这些复合物的二氧化混合物.
研究的目的:
- 为了研究酸催化甲醇添加到[TpRe(CO) ((L) ((4,5-eta(2)-furan) ]复合物中.
- 为了表征由此产生的二哈托协调的2-甲基-2,3-二二复合物和乙烯基乙烯产品.
主要方法:
- 在酸性条件下,在-40°C的温度下,[TpRe(CO) ((L) ((4,5-eta(2) - furan) ]复合体与甲醇的反应.
- 对二聚体产物形成和立体选择性的分析.
主要成果:
- 合成2 - 甲基 - 2,3 - 二二复合物的两个二聚体,用于L = (t) BuNC,PMe(3),pyridine和1-methylimidazole.
- 与金属碎片相对的甲氧基组的立体选择性抗添加.
- 从 (t) BuNC复合物中通过环开口形成一个乙烯基产品.
结论:
- 将酸催化甲醇添加到这些-复合体中,提供了一条通往功能化二的途径.
- 立体化学结果是由甲基组的反添加控制的.
- 产品的二聚体比率与起始材料的比率没有相关性.
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