Substituted Butenylindium Generated by Transmetalation of Cyclopropylmethylstannane with Indium Iodide: Synthesis and Characterization of Monobutenylindium
作者:Kensuke Kiyokawa、Makoto Yasuda、Akio Baba
DOI:10.1021/om200094m
日期:2011.4.11
dibutenylindium species. The bulky substituent on a cyclopropyl ring selectively afforded the monobutenylindium species, which allowed the isolation and X-ray structural analysis of the monobutenylindium complex. In an investigation of the generated substituted butenylindium species, we found that indium halide interacted with the less sterically hindered carbon−carbon bond of the cyclopropyl ring during transmetalation
取代的环丙基甲基锡与碘化铟之间的金属转移提供了相应的单丁烯基和二丁烯基铟。环丙基环上的庞大取代基选择性提供了单丁烯基铟物种,从而可以对单丁烯基铟络合物进行分离和X射线结构分析。在对生成的取代丁烯铟物种的研究中,我们发现卤化铟在金属转移过程中与环丙基环的空间位阻较小的碳-碳键相互作用。另外,我们检查了取代的丁烯铟物种与α-碘酸酯的自由基偶联反应。环丙基甲基化和烯烃产物的分布证明了反应受到丁烯基铟物种取代基的空间效应的显着影响,