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

Godau T, Bleifuß S, Müller A, Roth T, Hoffmann S, Heinemann FW, Burzlaff N (2011)

Publication Type: Journal article, Original article

Publication year: 2011

Journal

Dalton Transactions Royal Society of Chemistry

Original Authors: Godau T., Bleifuß S.M., Müller A.L., Roth T., Hoffmann S., Heinemann F.W., Burzlaff N.

Publisher: Royal Society of Chemistry

Book Volume: 40

Pages Range: 6547-6554

Journal Issue: 24

DOI: 10.1039/c1dt10032g

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.

Authors with CRIS profile

Tom Godau Professur für Anorganische Chemie Sascha Bleifuß Lehrstuhl für Bioanorganische Chemie Susanne Hoffmann Lehrstuhl für Bioanorganische Chemie Frank Wilhelm Heinemann Lehrstuhl für Anorganische und Allgemeine Chemie Nicolai Burzlaff Professur für Anorganische Chemie

How to cite

APA:

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