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Volumn 51, Issue 13, 2010, Pages 1663-1665

Palladium-catalyzed oxidative heterocyclodehydration-alkoxycarbonylation of 3-yne-1,2-diols: a novel and expedient approach to furan-3-carboxylic esters

Author keywords

[No Author keywords available]

Indexed keywords

3 YNE 1,2 DIOL DERIVATIVE; ESTER; FURAN CARBOXYLIC ESTER; HETEROCYCLIC COMPOUND; PALLADIUM; UNCLASSIFIED DRUG;

EID: 77049083352     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2010.01.054     Document Type: Article
Times cited : (27)

References (78)
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    • Several molecules incorporating the furan-3-carboxylic ester core have shown interesting pharmacological activities, including antihypertensive, antimicrobial, and anticancer activity. For recent leading examples, see:
    • Several molecules incorporating the furan-3-carboxylic ester core have shown interesting pharmacological activities, including antihypertensive, antimicrobial, and anticancer activity. For recent leading examples, see:. Wang J., Zhang H., Yang X., Zhou Y., Wang H., and Bai H. J. Antibiot. 61 (2008) 623-626
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    • Wang, J.1    Zhang, H.2    Yang, X.3    Zhou, Y.4    Wang, H.5    Bai, H.6
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    • 3C{triple bond, long}CMgBr.
    • 3C{triple bond, long}CMgBr.
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    • These conditions (32 atm of CO together with 9 total atm of air, considering that the autoclave was loaded under 1 atm of air) corresponded to 78.0% of CO in air and were outside the explosion limits for CO in air ca. 16-70% at 18-20 °C and atmospheric pressure, 14.8-71.4% at 100 °C and atmospheric pressure. At higher total pressure, the range of flammability decreases: for example, at 20 atm and 20 °C the limits are ca. 19% and 60%. See: Bartish, C. M.; Drissel, G. M. In: Kirk-Othmer Encyclopedia of Chemical Technology; Grayson, M., Eckroth, D., Bushey, G. J., L. Campbell, L., Klingsberg, A., van Nes, L., Eds., 3rd ed.; Wiley-Interscience: New York, 1978; 4, p 775.
    • These conditions (32 atm of CO together with 9 total atm of air, considering that the autoclave was loaded under 1 atm of air) corresponded to 78.0% of CO in air and were outside the explosion limits for CO in air (ca. 16-70% at 18-20 °C and atmospheric pressure, 14.8-71.4% at 100 °C and atmospheric pressure. At higher total pressure, the range of flammability decreases: for example, at 20 atm and 20 °C the limits are ca. 19% and 60%. See: Bartish, C. M.; Drissel, G. M. In: Kirk-Othmer Encyclopedia of Chemical Technology; Grayson, M., Eckroth, D., Bushey, G. J., L. Campbell, L., Klingsberg, A., van Nes, L., Eds., 3rd ed.; Wiley-Interscience: New York, 1978; Vol. 4, p 775.
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    • Typical procedure for the oxidative carbonylative annulation of 3-yne-1,2-diols 1 to furan-3-carboxylic esters 2: A 250 mL stainless steel autoclave was charged in the presence of air with PdI2 (5.0 mg, 1.39 × 10-2 mmol, KI (11.5 mg, 6.93 × 10-2 mmol, and a solution of 1 (1.39 mmol) in ROH (R, Me or Et, 28 mL, The autoclave was sealed and, while the mixture was stirred, the autoclave was pressurized with CO (32 atm) and air (up to 40 atm, After being stirred at 100 °C for 2 h, the autoclave was cooled, degassed, and opened. The solvent was evaporated, and the products were purified by column chromatography on silica gel (eluent: 9:1 hexane-acetone for 2a and 2b; 95:5 hexane-AcOEt for 2c and 2d; 6:4 hexane-acetone for 2e; 98:2 hexane-AcOEt for 2a′) to give pure furans 2, which were fully characterized by spectroscopic techniques and elemental analysis.11
    • 11
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    • 3): δ = 164.9, 158.0, 139.2, 129.4, 129.1, 128.4, 128.1, 128.0
    • 3 (210.27): C, 68.54; H, 8.63. Found: C, 68.53; H, 8.64.
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    • Cyclocarbonylation
    • 2-catalyzed oxidative carbonylation reactions, see:. Negishi E. (Ed), Wiley-Interscience, New York
    • 2-catalyzed oxidative carbonylation reactions, see:. Gabriele B., and Salerno G. Cyclocarbonylation. In: Negishi E. (Ed). Handbook of Organopalladium Chemistry for Organic Synthesis Vol. II (2002), Wiley-Interscience, New York 2623-2641
    • (2002) Handbook of Organopalladium Chemistry for Organic Synthesis , vol.II , pp. 2623-2641
    • Gabriele, B.1    Salerno, G.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.