메뉴 건너뛰기




Volumn , Issue 7, 2007, Pages 1037-1042

Synthesis of functionalized spiroheterocycles by sequential multicomponent reaction/metal-catalyzed carbocylizations from simple β-ketoesters and amides

Author keywords

1,3 dicarbonyl compounds; Heck reaction; Multicomponent reactions; Ring closing metathesis; Spiroheterocycles

Indexed keywords

AMIDE; ESTER DERIVATIVE; HETEROCYCLIC COMPOUND; PALLADIUM;

EID: 34248166450     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-973896     Document Type: Article
Times cited : (30)

References (47)
  • 1
    • 84890597202 scopus 로고    scopus 로고
    • For a recent monograph, see:, Zhu, J, Bienayme, H, Eds, Wiley-VCH: Weinheim
    • (a) For a recent monograph, see: Multicomponent Reactions; Zhu, J.; Bienayme, H., Eds.; Wiley-VCH: Weinheim, 2005.
    • (2005) Multicomponent Reactions
  • 2
    • 31544434530 scopus 로고    scopus 로고
    • For some recent reviews on MCRs, see: b, and references cited therein
    • For some recent reviews on MCRs, see: (b) Dömling, A. Chem. Rev. 2006, 106, 17; and references cited therein,
    • (2006) Chem. Rev , vol.106 , pp. 17
    • Dömling, A.1
  • 8
    • 7044235263 scopus 로고    scopus 로고
    • For representative reviews, see: h
    • For representative reviews, see: (h) Tietze, L. F. Chem. Rev. 1996, 96, 115.
    • (1996) Chem. Rev , vol.96 , pp. 115
    • Tietze, L.F.1
  • 14
    • 0026418434 scopus 로고
    • (a) Trost, B. M. Science 1991, 254, 1471.
    • (1991) Science , vol.254 , pp. 1471
    • Trost, B.M.1
  • 21
    • 0002576569 scopus 로고
    • For a special issue in environmental chemistry, see
    • For a special issue in environmental chemistry, see: Grissom, C. B. Chem. Rev. 1995, 95, 3.
    • (1995) Chem. Rev , vol.95 , pp. 3
    • Grissom, C.B.1
  • 23
    • 34248231128 scopus 로고    scopus 로고
    • See refs 1a and 1b
    • (a) See refs 1a and 1b.
  • 26
    • 34248226233 scopus 로고    scopus 로고
    • Attanasi, O. A, Spinelli, D, Eds, Societá Chimica Italiana: Rome
    • (b) Constantieux, T.; Rodriguez, J. In Targets in Heterocyclic Systems, Vol 9; Attanasi, O. A.; Spinelli, D., Eds.; Societá Chimica Italiana: Rome, 2005.
    • (2005) Targets in Heterocyclic Systems , vol.9
    • Constantieux, T.1    Rodriguez, J.2
  • 32
    • 0012106210 scopus 로고
    • In Studies in Natural Products Chemistry
    • Elsevier: Amsterdam
    • (b) Martin, J. D. In Studies in Natural Products Chemistry, Vol. 6; Atta-ur-Rahman, Ed.; Elsevier: Amsterdam, 1990, 59.
    • (1990) Atta-ur-Rahman, Ed , vol.6 , pp. 59
    • Martin, J.D.1
  • 36
    • 34248193708 scopus 로고    scopus 로고
    • See ref. 10b
    • (a) See ref. 10b.
  • 38
    • 34248232378 scopus 로고    scopus 로고
    • General Procedure for MCRs: To a solution of ketoester or ketoamide 1 (1 mmol) and DBU (3 mmol) in appropriate solvent (4 mL, Table 1) was added the corresponding aldehyde 2 (1.1 mmol) and halide 3 (2 mmol, The resulting solution was stirred for the indicated time and at the indicated temperature (Table 1, After completion of the reaction and evaporation of most of the solvent under reduced pressure, 1 N solution of HCL (30 mL) was added to the oily residue. Extraction with Et2O (3 x 40 mL) followed by successive washing with distilled H2O (2 x 20 mL) and brine (20 mL) gave, after drying (MgSO4) and evaporation of the solvent, the crude compounds which were purified by flash chromatography on silica gel. Physical Data for Compound 4b: yellow oil; R f[Et2O-PE (50:50, 0.79. IR (liquid film, 2942, 1740, 1678, 1588, 1472, 1208, 1133, 927 cm-1. MS: m/z, 305 100, M
    • 3): δ = 197.3, 168.9, 151.6, 144.7, 131.3, 132.0, 128.2, 118.8, 115.9, 120.1, 112.9, 115.5, 66.6, 60.4, 38.6, 32.7.
  • 43
    • 34248164881 scopus 로고    scopus 로고
    • General Procedure for RCMs: To a 6 × 10-3 M solution of spiroheterocyclic precursors 4a-e in anhyd CH 2Cl2, under an atmosphere of argon, Grubbs' catalyst 5b was introduced in several portions of 2% every 2 h. The mixture was stirred at reflux and completion of reaction was checked by TLC. The mixture was filtered through a pad of silica gel and celite and the crude material was purified by flash chromatography on silica gel. Physical Data for Compound 6c: yellow solid; mp 104-106°C. IR (liquid film, 2960, 1708, 1620, 1460, 1201, 1030 cm-1. MS: m/z, 290 (100, M, H, 233 (17, 190 (5, 1H NMR (300.13 MHz, CDCl 3, β, 7.53 (d, J, 1.7 Hz, 1 H, 7.32 (s, 1 H, 6.67 (d, J, 3.3 Hz, 1 H, 6.49 (dd, J, 1.7, 3.3 Hz, 1 H, 5.75-5.85 (m, 2 H, 3.90-4.18 (m, 2 H, 3.81 (d, J, 11.7 Hz, 1 H, 3.03 (s, 3 H, 3.00 d, J, 11.7
    • 3): δ = 198.6, 170.2, 151.8, 144.4, 127.7, 125.8, 128.4, 112.8, 115.5, 115.0, 60.4, 49.8, 38.9, 35.1, 31.9.
  • 44
    • 0000633011 scopus 로고
    • Vinyl Substitution with Organopalladium Intermediates
    • Pergamon: Oxford
    • Heck, R. F. Vinyl Substitution with Organopalladium Intermediates, In Comprehensive Organic Synthesis, Vol. 4; Pergamon: Oxford, 1991.
    • (1991) Comprehensive Organic Synthesis , vol.4
    • Heck, R.F.1
  • 47
    • 34248136833 scopus 로고    scopus 로고
    • General Procedure for Heck Reaction: To a 4 × 10 -2 M solution of spiroheterocyclic precursors 4f and 4g in anhyd MeCN, under an atmosphere of argon, palladium acetate (4 equiv) and PPh3 (8 equiv) were added, followed by Et3N (1.2 equiv, The mixture was stirred at reflux and the completion of reaction was checked by TLC. The mixture was filtered through a pad of celite and the crude material was purified by flash chromatography on silica gel. Physical Data for Compound 7b: yellow powder; mp 169-171°C. IR (liquid film, 2926, 1719, 1626, 1444, 1337, 1256, 940 cm-1. MS: m/z, 326 (100, M, H, 295 (3, 255 (3, 201 (3, 164(16, 1H NMR (300.13 MHz, CDCl3, δ, 7.34-7.64 (m, 6 H, 5.41 (d, J, 0.9, 16.6 Hz, 2 H, 5.02 (d, J, 9.3 Hz, 1 H, 4.72 (dd, J, 1.1, 15.1 Hz, 2 H, 4.04 (dd, J =0.9, 11.3 Hz, 1 H, 3.57 d, J, 15
    • 3): δ = 200.9, 169.0, 143.5, 141.8, 135.0, 130.5, 129.6, 129.5, 129.2, 128.8, 115.3, 112.8, 61.4, 54.2, 39.4, 37.1, 31.1.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.