Synthesis 2016; 48(14): 2287-2293
DOI: 10.1055/s-0035-1560438
paper
© Georg Thieme Verlag Stuttgart · New York

Additive-Free Palladium-Catalysed Hydroamination of Piperylene with Morpholine

Peter Neubert
Department of Biochemical and Chemical Engineering, Chair of Technical Chemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany   Email: arno.behr@bci.tu-dortmund.de
,
Ines Meier
Department of Biochemical and Chemical Engineering, Chair of Technical Chemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany   Email: arno.behr@bci.tu-dortmund.de
,
Tom Gaide
Department of Biochemical and Chemical Engineering, Chair of Technical Chemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany   Email: arno.behr@bci.tu-dortmund.de
,
Arno Behr*
Department of Biochemical and Chemical Engineering, Chair of Technical Chemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany   Email: arno.behr@bci.tu-dortmund.de
› Author Affiliations
Further Information

Publication History

Received: 14 December 2015

Accepted after revision: 12 February 2016

Publication Date:
15 March 2016 (online)


Abstract

In this contribution, the additive-free hydroamination of piperylene, an easily accessible 1,3-diene from naphtha steamcracking, with morpholine is described. This reaction provides an atom economic access to allylic C5 amines in a single step from commercially available and air-stable precursors and ligands. Detailed investigations revealed (DPPB)Pd(CCl3CO2)2 as the most active catalyst. After a 12-hour reaction period, a total yield of 79% allylic amines was obtained in the presence of 0.3 mol% catalyst. Furthermore, a noteworthy influence of the catalyst counter ion and the substrate concentration was discovered.