Journal article
(Original article)


Cu(i) catalysed cyclopropanation with enantiopure scorpionate type ligands derived from (+)-camphor or (-)-menthone


Publication Details
Author(s): Godau T, Bleifuß S, Müller A, Roth T, Hoffmann S, Heinemann F, Burzlaff N
Publisher: Royal Society of Chemistry
Publication year: 2011
Volume: 40
Journal issue: 24
Pages range: 6547-6554
ISSN: 1477-9226
eISSN: 1477-9234

Abstract

One-pot syntheses of three new enantiopure heteroscorpionate ligands derived from (+)-camphor or (-)-menthone are described. The ligands are obtained by reacting pyrazoles derived from (+)-camphor or (-)-menthone with sodium hydride and thionyl chloride. Subsequent reactions with pyridine and various aldehydes afford the tripod ligands in multi-gram amounts. Especially the menthopyrazole based ligand 6 showed encouraging ee values up to 69% in the Cu(i) catalysed enantioselective cyclopropanation of styrene with ethyl diazoacetate. © 2011 The Royal Society of Chemistry.



How to cite
APA: Godau, T., Bleifuß, S., Müller, A., Roth, T., Hoffmann, S., Heinemann, F., & Burzlaff, N. (2011). Cu(i) catalysed cyclopropanation with enantiopure scorpionate type ligands derived from (+)-camphor or (-)-menthone. Dalton Transactions, 40(24), 6547-6554. https://dx.doi.org/10.1039/c1dt10032g

MLA: Godau, Tom, et al. "Cu(i) catalysed cyclopropanation with enantiopure scorpionate type ligands derived from (+)-camphor or (-)-menthone." Dalton Transactions 40.24 (2011): 6547-6554.

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