4,4,6-Trimethyl-2-vinyl-1,3,2-dioxaborinane: An Efficient and Selective 2-Carbon Building Block for Vinylboronate Suzuki-Miyaura Coupling Reactions

Andrew P. Lightfoot; Steven J. R. Twiddle; Andrew Whiting

doi:10.1055/s-2005-862354

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Synlett 2005(3): 529-531
DOI: 10.1055/s-2005-862354

LETTER

4,4,6-Trimethyl-2-vinyl-1,3,2-dioxaborinane: An Efficient and Selective 2-Carbon Building Block for Vinylboronate Suzuki-Miyaura Coupling Reactions

Andrew P. Lightfoot^a, Steven J. R. Twiddle^b, Andrew Whiting*^b
^a GlaxoSmithKline Pharmaceuticals, New Frontiers Science Park, Third Avenue, Harlow, Essex, CM19 5AW, UK
^b Department of Chemistry, University of Durham, Science Laboratories, South Road, Durham, DH1 3LE, UK
Fax: +44(191)3843747; e-Mail: andy.whiting@durham.ac.uk;

Further Information

Publication History

Received 28 October 2004
Publication Date:
17 January 2005 (online)

Abstract
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Abstract

An extremely simple and efficient palladium-catalyzed coupling procedure for the synthesis of functionalized styrenes and dienes is utilized to demonstrate how 4,4,6-trimethyl-2-vinyl-1,3,2-dioxaborinane can be employed to selectively undergo Suzuki-Miyaura coupling with a range of halide substrates.

Key words

Suzuki-Miyaura coupling - palladium(0) - vinylboronate ester - chemoselectivity

References

1 Thirsk C. Whiting A. J. Chem. Soc., Perkin Trans. 1 2002, 8: 999

Google Scholar
2a Omura S. Tanaka Y. Kanaya I. Shinose M. Takahashi Y. J. Antibiot. 1990, 43: 1034

Crossref Google Scholar
2b Henaff N. Whiting A. Org. Lett. 1999, 1: 1137

Crossref Google Scholar
2c Henaff N. Whiting A. Tetrahedron 2000, 56: 5193

Crossref Google Scholar
3a Hunt AR. Stewart SK. Whiting A. Tetrahedron Lett. 1993, 34: 3599

Crossref Google Scholar
3b Stewart SK. Whiting A. J. Organomet. Chem. 1994, 482: 293

Crossref Google Scholar
3c Stewart SK. Whiting A. Tetrahedron Lett. 1995, 36: 3925

Crossref Google Scholar
4a Nakagawa M. Furihata K. Hayakawa Y. Seto H. Tetrahedron Lett. 1991, 32: 659

Google Scholar
4b Hasegawa T. Kamiya T. Henmi T. Iwasaki H. Yamatodani S. J. Antibiot. 1975, 28: 167

Google Scholar
4c Nakagawa M. Toda Y. Furihata K. Hayakawa Y. Seto H. J. Antibiot. 1992, 45: 1133

Google Scholar
5 Lightfoot AP. Maw G. Thirsk C. Twiddle SJR. Whiting A. Tetrahedron Lett. 2003, 44: 7645

Crossref Google Scholar
6a Lando VR. Monteiro AL. Org. Lett. 2003, 5: 2891

Crossref PubMed Google Scholar
6b Molander GA. Rivero MR. Org. Lett. 2002, 4: 107

Crossref PubMed Google Scholar
6c Molander GA. Bernardi CR. J. Org. Chem. 2002, 67: 8424

Crossref PubMed Google Scholar
8 Uenishi J. Beau J. Armstrong RW. Kishi Y. J. Am. Chem. Soc. 1987, 109: 4756

Google Scholar
Characterization data for products 8a-e, 8h and 10 was consistent with commercial samples. See:
9a 8f: Lebel HV. Paquet V. Organometallics 2004, 23: 1187

Crossref Google Scholar
9b 8g: Chinkov N. Majumdar S. Marek I. J. Am. Chem. Soc. 2002, 124: 10282

Crossref Google Scholar
10 Tinnemans AHA. Laarhoven WH. J. Chem. Soc., Perkin Trans. 2 1976, 10: 1104

Google Scholar
11 Miyaura N. J. Organomet. Chem. 2002, 653: 54

Google Scholar

7

Typical Procedure, Conditions A.
To an oven dried Schlenk-like tube under argon was added Pd(PPh₃)₄ (39 mg, 33.8 µmol) and t-BuOK (91 mg, 0.81 mmol), followed by THF (6 mL), substrate (0.675 mmol) and boronate 4 (0.125 g, 0.81 mmol). The tube was heated at 67 °C for 24 h before cooling, dilution with Et₂O (30 mL) and filtration through Celite. This solution was treated with undecane (50 µL, 37.5 mg) and a portion was analyzed by GC. ¹H NMR analysis to determine the Heck: Suzuki ratio, which was carried out after evaporation to give the crude product. Purification was carried out by silica gel column chromatography (hexane as eluant).