Rearrangement Reactions; 12:Synthesis and Reactions of Isothiocyanate Substituted Allenes
作者:Klaus Banert、Stefan Groth、Holger Hückstädt、Jens Lehmann、Jana Schlott、Kai Vrobel
DOI:10.1055/s-2002-33109
日期:——
The first method for the preparation of isothiocyanate substituted allenes by [3,3] sigmatropic rearrangement of propargyl thiocyanates is described. These allenes undergo a variety of successive reactions such as ionic or sigmatropic isomerization, electrocyclic ring closure, cycloaddition, and electrophilic addition. Furthermore, intramolecular nucleophilic attack as well as treatment with external
描述了通过硫氰酸炔丙酯的 [3,3] σ 重排制备异硫氰酸酯取代的丙二烯的第一种方法。这些丙二烯经历各种连续反应,例如离子或σ异构化、电环闭环、环加成和亲电加成。此外,分子内亲核攻击以及用外部亲核试剂处理会产生杂环产物。