作为专题“现代合成中的环化策略”的一部分发布 抽象的 据报道,Hg(OTf)2催化硝基炔的环化反应,以高收率和高选择性产生相应的苯并[ c ]异恶唑。在这种策略的基础上,开发了一种一锅合成吲哚衍生物的方法。在该转化中,提出了涉及两个Hg-卡宾中间体。 据报道,Hg(OTf)2催化硝基炔的环化反应,以高收率和高选择性产生相应的苯并[ c ]异恶唑。在这种策略的基础上,开发了一种一锅合成吲哚衍生物的方法。在该转化中,提出了涉及两个Hg-卡宾中间体。
Isatogens. Part VI. Synthesis of isatogens via tolan (diphenylacetylene) intermediates
作者:C. C. Bond、M. Hooper
DOI:10.1039/j39690002453
日期:——
A number of substituted 2-nitrotolans and isatogens have been prepared in high yield from copper(I) 2-nitrophenylacetylide and substituted aromatic iodo-compounds. The reaction has been shown to be affected by both electronic and steric factors and its limitations are discussed. 2-Carbamoyltolans have been shown to cyclise to aminoindenones. A number of novel compounds have been isolated from these
Efficient Nucleophilic Aromatic Substitution between Aryl Nitrofluorides and Alkynes
作者:Patrick L. DeRoy、Simon Surprenant、Megan Bertrand-Laperle、Christiane Yoakim
DOI:10.1021/ol0710818
日期:2007.7.1
The nucleophilic aromatic substitution reaction between electron-deficient aryl fluorides and terminal alkynes is shown to be efficiently promoted by sodium bis(trimethylsilyl)amide as a base. Moderate to excellent yields of 2-ethynylnitrobenzene products can be obtained under mild conditions.