Photochemical Strain‐Release‐Driven Cyclobutylation of C(sp
<sup>3</sup>
)‐Centered Radicals
作者:Guillaume Ernouf、Egor Chirkin、Lydia Rhyman、Ponnadurai Ramasami、Jean‐Christophe Cintrat
DOI:10.1002/anie.201908951
日期:2020.2.10
bicyclo[1.1.0]butanes. The mild photoredox conditions, which make use of a readily available and bench stable phenyl sulfonyl bicyclo[1.1.0]butane, proved to be amenable to a diverse range of α-amino and α-oxy carboxylic acids, providing a concise route to 1,3-disubstituted cyclobutanes. Furthermore, kinetic studies and DFT calculations unveiled mechanistic details on bicyclo[1.1.0]butane reactivity relative
描述了一种新的光氧化还原催化的脱羧自由基加成方法,以官能化的环丁烷。该反应涉及到以高应变的双环[1.1.0]丁烷空前的以C(sp3)为中心的形式正式的Giese型加成反应。轻度的光氧化还原条件,利用易于获得且稳定的苯磺酰基双环[1.1.0]丁烷,证明适用于各种范围的α-氨基和α-氧基羧酸,提供了简化的制备1 ,3-二取代的环丁烷。此外,动力学研究和DFT计算揭示了相对于相应的烯烃体系双环[1.1.0]丁烷反应性的机理细节。