Synthesis 2015; 47(04): 569-574
DOI: 10.1055/s-0034-1378942
paper
© Georg Thieme Verlag Stuttgart · New York

Novel (+)-3-Carene Derivatives and Their Application in Asymmetric Synthesis

Piotr Roszkowski*
a   Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland   Email: roszkowski@chem.uw.edu.pl
,
Paweł Małecki
a   Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland   Email: roszkowski@chem.uw.edu.pl
,
Jan K. Maurin
b   National Medicines Institute, Chełmska 30/34, 00-725 Warsaw, Poland
c   National Centre for Nuclear Research, Andrzeja Sołtana 7, 05-400 Otwock-Świerk, Poland
,
Zbigniew Czarnocki
a   Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland   Email: roszkowski@chem.uw.edu.pl
› Author Affiliations
Further Information

Publication History

Received: 05 August 2014

Accepted after revision: 06 November 2014

Publication Date:
03 December 2014 (online)


Abstract

A simple synthetic procedure for the preparation of mono-N-tosylated-1,2-diamines derived from (+)-3-carene is described. (+)-3-Carene is transformed into the corresponding N-tosylaziridine derivative using chloramine-T trihydrate. Subsequent ring opening with sodium azide followed by reduction of the azide function gives the optically pure mono-N-tosylated-1,2-diamine. This ligand is effective in asymmetric transfer hydrogenations of aromatic ketones. It can also be transformed into other chiral ligands by alkylation of the amino group for application in the addition of diethylzinc to benzaldehydes.

Supporting Information