A metal-free approach towards synthesis of β-carboline C1 substituted Pyrido(2,3-c)carbazole derivatives (nitramarine analogues) through A3-coupling and estimation of their light emitting properties
作者:Manpreet Singh、Vaishali、Sunit Kumar、Rahul Jamra、Satyendra K. Pandey、Virender Singh
DOI:10.1016/j.tet.2020.131640
日期:2020.11
A simple and efficient metal-free methodology is presented to access fluorescent β-carboline tethered pyrido(2,3-c)carbazole derivatives (Nitramarine analogues) via A3-coupling of 1-formyl-9H-β-carbolines, 3-amino-9-ethylcarbazole, and terminal alkynes. The advantages of this approach are operationally simple procedure, use of non-toxic and inexpensive catalyst (I2), broad substrate scope, and good
一个简单的和有效的不含金属的方法被呈现给访问荧光β咔啉系留式的吡啶并(2,3- c ^经由A)的咔唑衍生物(Nitramarine类似物)3的1-甲酰基- 9 -耦合ħ -β咔啉,3-氨基-9-乙基咔唑和末端炔烃。这种方法的优点是操作简单,使用无毒且价格便宜的催化剂(I 2),广泛的底物范围和良好的产品收率。此外,这些产品显示出与量子产率(Φ优异的发光特性˚F高达60%)。