Synthesis and catalytic epoxidation activity of terpene-derived D4-symmetric metalloporphyrins
作者:John F. Barry、Lara Campbell、Dudley W. Smith、Thomas Kodadek
DOI:10.1016/s0040-4020(97)00470-5
日期:1997.6
We report here a flexible synthesis of chiral, D4-symmetric porphyrins from cyclic ketone starting materials. Two porphyrins have been synthesized from the terpene 1-R-(+)-nopinone, obviating the need to perform a resolution. The chloromanganese derivative of one of these porphyrins is a good catalyst for the epoxidation of terminal alkenes, providing epoxides with e.e.'s of 70% with high turnover
我们在这里报告了从环状酮原料中灵活合成手性D 4对称卟啉的方法。从萜烯1-R-(+)-nopinone合成了两种卟啉,无需进行拆分。这些卟啉之一的氯锰衍生物是末端烯烃环氧化的良好催化剂,可提供具有70%ee的ee和高周转率的环氧化物。讨论了手性口袋中氧原子转移的预测模型。