Synthesis 2015; 47(11): 1633-1642
DOI: 10.1055/s-0034-1380414
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of 4-Alkylidene-Substituted 1,2,3,4-Tetrahydroisoquinolines via Palladium-Catalyzed Carbopalladation/C–H Activation of 2-Bromobenzyl-N-propargylamines

Kanagaraj Naveen
Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai-600 020, India   Email: ptperumal@gmail.com
,
Avanashiappan Nandakumar
Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai-600 020, India   Email: ptperumal@gmail.com
,
Paramasivan Thirumalai Perumal*
Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai-600 020, India   Email: ptperumal@gmail.com
› Author Affiliations
Further Information

Publication History

Received: 24 November 2014

Accepted after revision: 12 February 2015

Publication Date:
18 March 2015 (online)


Abstract

Tetrasubstituted alkene-based 1,2,3,4-tetrahydroisoquinolines are synthesized via the formation of a cyclic carbopalladation complex followed by C–H bond activation of the sp2 carbon in arenes. This domino reaction proceeds with good selectivity and provides good yields of the products. The requisite starting materials are synthesized by copper(I) iodide catalyzed A3-coupling reactions.

Supporting Information