单氟烯烃是用于药物化学的稳定且亲脂的酰胺生物等排体。然而,用于合成Z-单氟烯烃的有效且立体选择性的方法尚未开发。我们设想(Z) -β-氟乙烯基碘鎓盐 ( Z -FVI) 作为偶联伙伴,用于Z -单氟烯烃的多样化和立体选择性合成。本文公开了银(I)催化方法的开发和应用,用于在一步中从炔烃获得具有独特的Z-立体选择性和区域选择性的广泛( Z )-FVI。实验和计算研究深入了解催化循环的机制和银 (I) 催化剂的作用,并通过几种立体定向衍生化探索 ( Z )-FVI 的反应性。
单氟烯烃是用于药物化学的稳定且亲脂的酰胺生物等排体。然而,用于合成Z-单氟烯烃的有效且立体选择性的方法尚未开发。我们设想(Z) -β-氟乙烯基碘鎓盐 ( Z -FVI) 作为偶联伙伴,用于Z -单氟烯烃的多样化和立体选择性合成。本文公开了银(I)催化方法的开发和应用,用于在一步中从炔烃获得具有独特的Z-立体选择性和区域选择性的广泛( Z )-FVI。实验和计算研究深入了解催化循环的机制和银 (I) 催化剂的作用,并通过几种立体定向衍生化探索 ( Z )-FVI 的反应性。
Regioselective 1,2-addition of allenamides with N-haloimides: synthesis of 2-halo allylic aminal derivatives
作者:Hong-He Li、Xiao-Xiao Li、Zhi-Gang Zhao、Xiao Yuan、Chen-Yang Sun
DOI:10.1039/c7ob00882a
日期:——
for the synthesis of 2-halo allylic aminal derivatives through regioselective 1,2-addition of allenamides with N-haloimides is presented. This reaction was conducted under very mild conditions and gave up to 99% yield. Moreover, the obtained halides allow functionalgroup diversification by palladium-catalyzed coupling reactions, which could act as potential intermediates for the synthesis of valuable
Consecutive CH Functionalization Reactions of Arenes: Synthesis of Carbo- and Heteropolycyclic Skeletons
作者:Samuel Suárez-Pantiga、David Palomas、Eduardo Rubio、José M. González
DOI:10.1002/anie.200902989
日期:2009.10.5
Doubling the bet: Two CH bonds become functionalized upon exposure of ω‐aryl propargylic tosylates to Sc(OTf)3 (see scheme). The reaction involves a new domino process that can tolerate both electron‐withdrawing and ‐donating substituents on the arene unit. Different carbo‐ and heterocyclic frameworks can be assembled by using this approach to formally conquer the hydroarylation process.
作者:Cristina Hernández-Díaz、Eduardo Rubio、José M. González
DOI:10.1002/ejoc.201501364
日期:2016.1
formation of the target [2+2+2] products depends on the concentration of the reagents, the nature of the ancillary ligand on the gold catalyst, and, to a significant extent, on the selection of a low reaction temperature. This singular catalytic allene cycloaddition gives adducts in high isolated yields. In addition to representing a new gold-catalyzed reaction, the reported allenamide cyclotrimerization