Subscribe to RSS
Please copy the URL and add it into your RSS Feed Reader.
https://www.thieme-connect.de/rss/thieme/en/10.1055-s-00000084.xml
Synthesis 2019; 51(12): 2515-2522
DOI: 10.1055/s-0037-1611807
DOI: 10.1055/s-0037-1611807
special topic
Ruthenium-Catalyzed Directed C(3)–H Olefination of N-Acetyl-1,2-dihydroisoquinolines: A Method to Achieve C3-Olefinated Isoquinolines
SERB-India (EMR/2016/004298/OC) and CSIR-India [02(205)/14/EMR-II] are gratefully acknowledged for the research funding.Further Information
Publication History
Received: 15 February 2019
Accepted after revision: 02 April 2019
Publication Date:
15 April 2019 (online)


§ Equal contribution
Published as part of the Special Topic Ruthenium in Organic Synthesis
Abstract
A unique approach to achieve regioselective C(3)–H olefination of isoquinolines under ruthenium-catalyzed conditions has been developed. The acetyl group of N-acetyl-1,2-dihydroisoquinoline acts as a directing group for this C–H olefination strategy. Removal of the acetyl directing group by a simple method leads to a quick access to C-3 olefinated isoquinolines. The methodology is a very good alternative to the traditional Heck reaction and substrates with halogen substituents are very good candidates for the transformation.
Key words
ruthenium catalysis - C–H functionalization - isoquinolines - directing group - C–H olefinationSupporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0037-1611807. Included are details of reversibility studies and kinetic isotope effect studies, spectra of new compounds, and crystal data of compound 3j.
- Supporting Information