A convenient synthesis of new chromophoric tetracyanobutadiene-scaffolded peptides via a dipolar [2+2] cycloaddition–cycloreversion reaction
作者:Dirk T.S. Rijkers、François Diederich
DOI:10.1016/j.tetlet.2011.05.136
日期:2011.8
Herein, we report a novel approach for the synthesis of π-conjugated peptide-based donor–acceptor (D-π-A) chromophores, by reacting electron-rich alkynes with tetracyanoethylene. The desired tetracyanobutadiene-scaffolded peptides were obtained in good yields with various optical properties, λmax: 321–492 nm, ε: 21,000–65,000 mol−1 dm3 cm−1 depending on the substitution pattern of the cyanobutadiene
本文中,我们报告了一种通过富电子炔烃与四氰基乙烯反应合成π-共轭肽基供体-受体(D-π-A)发色团的新方法。以良好产率的各种光学特性,得到所期望的tetracyanobutadiene-脚手架肽,λ最大:321-492纳米,ε:摩尔21,000-65,000 -1 分米3 厘米-1取决于cyanobutadiene支架的取代模式。