3,4,5-Trimethylphenol and Lewis Acid Dual-Catalyzed Cascade Ring-Opening/Cyclization: Direct Synthesis of Naphthalenes
作者:He Ma、Xiu-Qin Hu、Yong-Chun Luo、Peng-Fei Xu
DOI:10.1021/acs.orglett.7b03392
日期:2017.12.15
dual-catalyzed cascadereaction of donor–acceptor (D–A) cyclopropanes via ring-opening and cyclization is developed. In this reaction, a phenolic compound was used as a covalent catalyst for the first time. Additionally, control experiments proved that 3,4,5-trimethylphenol completed the catalytic cycle by accomplishing the C–C bond cleavage. Using this strategy, a wide variety of substitutednaphthalenes has
Highly Selective C–N and C–S Dual Functionalization of 1,3-Dicarbonyl Derivatives Using TBHP as an Oxidant
作者:Pooja K. Bagad、Ratanamala S. Darole、G. Rama Krishna、Beeran Senthilkumar
DOI:10.1021/acs.joc.4c00612
日期:2024.7.5
and efficient method for the selective synthesis of (E)-3-amino-2-thiocyanato-α,β-unsaturated carbonyl compounds is described through a given protocol. The present approach features the use of inexpensive ammonium thiocyanate to achieve dual functionalization of 1,3-dicarbonyl compounds using TBHP as an oxidant, providing a rapid and practical route to the selective formation of both C–N and C–S bonds
通过给定的方案描述了一种直接电合成/无光催化剂、原子经济且有效的选择性合成( E )-3-氨基-2-硫氰酸根-α,β-不饱和羰基化合物的方法。本方法的特点是使用廉价的硫氰酸铵,以 TBHP 作为氧化剂实现 1,3-二羰基化合物的双官能化,为通过自由基选择性形成 C-N 和 C-S 键提供了快速实用的途径过程。该方法提供了广泛的底物范围和优异的产率,并允许进一步探索产物以构建杂环化合物和其他功能。