Cyclizations of unsymmetrical bis-1,2-(3-indolyl)ethanes: Synthesis of (−)-tjipanazole F1
作者:Eric J. Gilbert、Joseph W. Ziller、David L. Van Vranken
DOI:10.1016/s0040-4020(97)01036-3
日期:1997.12
The intramolecular dimerization of unsymmetrical bis-1,2-(3-indolyl)ethanes could be controlled using either thermodynamic reaction conditions (neat trifluoroacetic acid) or kinetic conditions (2 equiv acid/chloroform). This control of regiochemistry has been applied to an efficient synthesis of (−)-tjipanazole F1.
研究了3-取代的吲哚的分子间和分子内二聚化。二聚化的速率和程度取决于吲哚取代基。可以使用热力学反应条件(纯三氟乙酸)或动力学条件(2当量酸/氯仿)控制不对称双1,2-(3-吲哚基)乙烷的分子内二聚。区域化学的这种控制已应用于(-)-tjipanazole F1的有效合成。