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Volumn , Issue 12, 2002, Pages 2049-2053

Polymer-supported 2,2′-bis(oxazolin-2-yl)- 1,1′-binaphthyls (boxax): Immobilized chiral ligands for asymmetric wacker-type cyclizations

Author keywords

Asymmetric catalysis; Boxax; Immobilized chiral catalysts; Wacker type cyclization

Indexed keywords

DIHYDROBENZOFURAN DERIVATIVE; LIGAND; MACROGOL; NAPHTHYL GROUP; OXAZOLINE DERIVATIVE; PALLADIUM COMPLEX; PHENOL DERIVATIVE; POLYMER;

EID: 0036456056     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2002-35603     Document Type: Article
Times cited : (48)

References (51)
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    • 0032886229 scopus 로고    scopus 로고
    • For studies on polymer-supported palladium catalysts reported by the author's group, see: (a) π-Allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1997, 38, 3557. (b) Asymmetric allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1998, 39, 8303. (c) π-Allylic substitution: Danjo, H.; Tanaka, D.; Hayashi, T.; Uozumi, Y. Tetrahedron 1999, 55, 14341. (d) Cross-coupling: Uozumi, Y.; Danjo, H.; Hayashi, T. J. Org. Chem. 1999, 64, 3384. (e) Carbonylation reaction: Uozumi, Y.; Watanabe, T. J. Org. Chem. 1999, 64, 6921. (f) Asymmetric allylic substitution: Uozumi, Y.; Shibatomi, K. J. Am. Chem. Soc. 2001, 123, 2919. (g) Cross-coupling: Uozumi, Y.; Nakai, Y. Org. Lett. 2002, 4, 2997. (h) Sonogashira reaction: Uozumi, Y.; Kobayashi, Y. Heterocycles 2002, in press
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    • For studies on polymer-supported palladium catalysts reported by the author's group, see: (a) π-Allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1997, 38, 3557. (b) Asymmetric allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1998, 39, 8303. (c) π-Allylic substitution: Danjo, H.; Tanaka, D.; Hayashi, T.; Uozumi, Y. Tetrahedron 1999, 55, 14341. (d) Cross-coupling: Uozumi, Y.; Danjo, H.; Hayashi, T. J. Org. Chem. 1999, 64, 3384. (e) Carbonylation reaction: Uozumi, Y.; Watanabe, T. J. Org. Chem. 1999, 64, 6921. (f) Asymmetric allylic substitution: Uozumi, Y.; Shibatomi, K. J. Am. Chem. Soc. 2001, 123, 2919. (g) Cross-coupling: Uozumi, Y.; Nakai, Y. Org. Lett. 2002, 4, 2997. (h) Sonogashira reaction: Uozumi, Y.; Kobayashi, Y. Heterocycles 2002, in press
    • (2002) Org. Lett. , vol.4 , pp. 2997
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    • in press
    • For studies on polymer-supported palladium catalysts reported by the author's group, see: (a) π-Allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1997, 38, 3557. (b) Asymmetric allylic substitution: Uozumi, Y.; Danjo, H.; Hayashi, T. Tetrahedron Lett. 1998, 39, 8303. (c) π-Allylic substitution: Danjo, H.; Tanaka, D.; Hayashi, T.; Uozumi, Y. Tetrahedron 1999, 55, 14341. (d) Cross-coupling: Uozumi, Y.; Danjo, H.; Hayashi, T. J. Org. Chem. 1999, 64, 3384. (e) Carbonylation reaction: Uozumi, Y.; Watanabe, T. J. Org. Chem. 1999, 64, 6921. (f) Asymmetric allylic substitution: Uozumi, Y.; Shibatomi, K. J. Am. Chem. Soc. 2001, 123, 2919. (g) Cross-coupling: Uozumi, Y.; Nakai, Y. Org. Lett. 2002, 4, 2997. (h) Sonogashira reaction: Uozumi, Y.; Kobayashi, Y. Heterocycles 2002, in press
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    • Kawashima, M.1    Kakayama, M.2
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    • During preparation of this manuscript, controlled monobromination of 1,1′-bi-2-naphthol via the monopivalate 9 was reported, see: Cai, D.; Larsen, R. D.; Reider, P. J. Tetrahedron Lett. 2002, 43, 4055.
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    • Cai, D.1    Larsen, R.D.2    Reider, P.J.3
  • 31
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    • note
    • The enantiomeric purity of (S)-12 and (S)-14 were determined to be both >98% by HPLC analysis using chiral stationary phase column (Daicel Chiracel OD-H, eluent: n-hexane-isopropanol = 10:1).
  • 34
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    • note
    • Compounds 17a-c were obtained as single diastereomers.
  • 35
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    • note
    • 25-7.28 (c 0.49, THF).
  • 36
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    • note
    • ArgoGel amino resin (1% DVB cross-linked) purchased from Argonaut Technologies Inc. was used.
  • 37
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    • note
    • Aminomethylated polystyrene (1% DVB cross-linked) was purchased from Novabiochem.
  • 38
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    • For a copolymerisate of acrylamidopropyl[2-aminopropyl]polyethylene glycol and N,N-dimethylacrylamide crosslinked with bis(2-acrylamidopropyl)poly(ethylene glycol) (PEGA), see: Meldal, M. Tetrahedron Lett. 1992, 33, 3077.
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    • note
    • MeO-PEG5000 amino resin was purchased from Fluka.
  • 40
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    • For reviews of PEG-supported reagents, see: (a) Sieber, F.; Wentworth, P.; Janda, K. D. J. Comb. Chem. 1999, 1, 540. (b) Wentworth, P.; Janda, K. D. Chem. Commun. 1999, 1917. (c) Toy, P. H.; Janda, K. D. Acc. Chem. Res. 2000, 33, 546.
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    • For reviews of PEG-supported reagents, see: (a) Sieber, F.; Wentworth, P.; Janda, K. D. J. Comb. Chem. 1999, 1, 540. (b) Wentworth, P.; Janda, K. D. Chem. Commun. 1999, 1917. (c) Toy, P. H.; Janda, K. D. Acc. Chem. Res. 2000, 33, 546.
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    • For reviews of PEG-supported reagents, see: (a) Sieber, F.; Wentworth, P.; Janda, K. D. J. Comb. Chem. 1999, 1, 540. (b) Wentworth, P.; Janda, K. D. Chem. Commun. 1999, 1917. (c) Toy, P. H.; Janda, K. D. Acc. Chem. Res. 2000, 33, 546.
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    • note
    • 13C-MASNMR data of 4a-d: 4a: δ = 17.92, 18.25, 31.35, 32.36, 37.33, 39.01, 69.64, 72.08, 124.86, 125.39, 131.29, 132.62, 133.79, 134.04, 134.12, 137.33, 137.63, 139.31, 163.31, 171.63.4b: δ = 31.26, 37.12, 38.94, 74.10, 131.23, 132.58, 133.97, 134.27, 137.46, 137.81, 139.70, 142.05, 164.68, 171.68.4c: δ = 25.21, 31.34, 33.27, 37.43, 39.00, 67.74, 75.75, 124.66, 125.18, 131.39, 132.69, 133.95, 134.18, 137.74, 137.81, 138.02, 139.28, 162.75, 171.68. 4d: δ = 27.67, 31.30, 37.29, 39.00, 66.53, 78.96, 125.40, 131.17, 132.50, 133.60, 133.88, 136.54, 136.82, 139.35, 163.06, 171.59.
  • 45
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    • General Procedure for the Asymmetric Wacker-Type Cyclization of 1: A mixture of immobilized catalyst (0.02 mmol Pd), 2-(2,3-dimethyl-2-butenyl)-phenol(1) (0.2 mmol, 35.2 mg), benzoquinone (0.8 mmol, 86.4 mg) and MeOH (1 mL) was agitated at 60°C with shaking for 20 h. After being cooled to r.t., the resin was filtered off and washed twice with MeOH (1 mL). The solvent was removed in vacuo and the residue was purified by column chromatography using silica gel and n-hexane-EtOAc (95:5) giving (S)-2-isopropenyl-2-methyl-2,3-dihydrobenzofuran(2) as colorless oil. The ee was determined by GC (chiral stationary phase capillary column Cyclodex CB).
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    • For recent examples of PEG-supported binaphthyl-based chiral catalysts, see: (a) Guerreiro, P.; Ratovelomanana-Vidal, V.; Genet, J.-P.; Dellis, P. Tetrahedron Lett. 2001, 42, 3423. (b) Fan, Q.-H.; Deng, G.-J.; Lin, C.-C.; Chan, A. S. C. Tetrahedron: Asymmetry 2001, 12, 1241. (c) Yang, X.-W.; Sheng, J.-H.; Da C, S.; Wang, H.-S.; Su, W.; Wang, R.; Chan, A. S. C. J. Org. Chem. 2000, 65, 295. (d) Fan, Q.-H.; Deng, G.-J.; Chen, X.-M.; Xie, W.-C.; Jiang, D.-Z.; Liu, D.-S.; Chan, A. S. C. J. Mol. Cat. A. 2000, 159, 37; see also ref. 2b.
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    • For recent examples of PEG-supported binaphthyl-based chiral catalysts, see: (a) Guerreiro, P.; Ratovelomanana-Vidal, V.; Genet, J.-P.; Dellis, P. Tetrahedron Lett. 2001, 42, 3423. (b) Fan, Q.-H.; Deng, G.-J.; Lin, C.-C.; Chan, A. S. C. Tetrahedron: Asymmetry 2001, 12, 1241. (c) Yang, X.-W.; Sheng, J.-H.; Da C, S.; Wang, H.-S.; Su, W.; Wang, R.; Chan, A. S. C. J. Org. Chem. 2000, 65, 295. (d) Fan, Q.-H.; Deng, G.-J.; Chen, X.-M.; Xie, W.-C.; Jiang, D.-Z.; Liu, D.-S.; Chan, A. S. C. J. Mol. Cat. A. 2000, 159, 37; see also ref. 2b.
    • (2001) Tetrahedron: Asymmetry , vol.12 , pp. 1241
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    • For recent examples of PEG-supported binaphthyl-based chiral catalysts, see: (a) Guerreiro, P.; Ratovelomanana-Vidal, V.; Genet, J.-P.; Dellis, P. Tetrahedron Lett. 2001, 42, 3423. (b) Fan, Q.-H.; Deng, G.-J.; Lin, C.-C.; Chan, A. S. C. Tetrahedron: Asymmetry 2001, 12, 1241. (c) Yang, X.-W.; Sheng, J.-H.; Da C, S.; Wang, H.-S.; Su, W.; Wang, R.; Chan, A. S. C. J. Org. Chem. 2000, 65, 295. (d) Fan, Q.-H.; Deng, G.-J.; Chen, X.-M.; Xie, W.-C.; Jiang, D.-Z.; Liu, D.-S.; Chan, A. S. C. J. Mol. Cat. A. 2000, 159, 37; see also ref. 2b.
    • (2000) J. Org. Chem. , vol.65 , pp. 295
    • Yang, X.-W.1    Sheng, J.-H.2    Da, C.S.3    Wang, H.-S.4    Su, W.5    Wang, R.6    Chan, A.S.C.7
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    • For recent examples of PEG-supported binaphthyl-based chiral catalysts, see: (a) Guerreiro, P.; Ratovelomanana-Vidal, V.; Genet, J.-P.; Dellis, P. Tetrahedron Lett. 2001, 42, 3423. (b) Fan, Q.-H.; Deng, G.-J.; Lin, C.-C.; Chan, A. S. C. Tetrahedron: Asymmetry 2001, 12, 1241. (c) Yang, X.-W.; Sheng, J.-H.; Da C, S.; Wang, H.-S.; Su, W.; Wang, R.; Chan, A. S. C. J. Org. Chem. 2000, 65, 295. (d) Fan, Q.-H.; Deng, G.-J.; Chen, X.-M.; Xie, W.-C.; Jiang, D.-Z.; Liu, D.-S.; Chan, A. S. C. J. Mol. Cat. A. 2000, 159, 37; see also ref. 2b.
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    • Fan, Q.-H.1    Deng, G.-J.2    Chen, X.-M.3    Xie, W.-C.4    Jiang, D.-Z.5    Liu, D.-S.6    Chan, A.S.C.7
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    • For recent examples of PEG-supported chiral oxazoline ligands, see: (a) Annunziata, R.; Benaglia, M.; Cinquini, M.; Cozzi, F.; Pitillo, M. J. Org. Chem. 2001, 66, 3160. (b) Glos, M.; Reiser, O. Org. Lett. 2000, 2, 2045.
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