Selective Aryne Formation via Grob Fragmentation from the [2+2] Cycloadducts of 3‑Triflyloxyarynes

Selective Aryne Formation via Grob Fragmentation from the [2+2] Cycloadducts of 3‑Triflyloxyarynes
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通过 3-Triflyloxyarynes 的 [2 2] 环负载物的 Grob 断裂选择性形成芳炔

DOI:
10.1021/jacs.6b12161
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发表时间:
2016
影响因子:
15
通讯作者:
Yang Li
Yang Li
中科院分区:
化学1区
文献类型:
--
作者:
Jiarong Shi;Hai Xu;Dachuan Qiu;Jia He;Yang Li

文献摘要

相似文献

建立了3-三氟氧基芳烃的形式[2+2]环加成物的化学选择性开环方案,通过Grob裂解生成2,3-芳烃中间体。通过这个[2+2]环加成-2,3-芳烃生成序列,可以容易地获得各种1,3-二取代和1,2,3-三取代芳烃。这些转化中的区域选择性源于脂肪链的空间斥力。
A chemoselective ring-opening protocol of the formal [2+2] cycloadducts of 3-triflyloxyarynes was developed to generate 2,3-aryne intermediate via Grob fragmentation. A variety of 1,3-di- and 1,2,3-trisubstituted arenes could be readily accessed through this [2+2] cycloaddition-2,3-aryne formation sequence. The regioselectivity in these transformations originates from the steric repulsion of the aliphatic chain.