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Volumn 47, Issue 23, 2008, Pages 10804-10806

Facile synthesis of monoazidotitanium isopropoxides

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EID: 57949101935     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic8012415     Document Type: Article
Times cited : (10)

References (30)
  • 2
    • 0342458068 scopus 로고    scopus 로고
    • 5th ed, Kroschwitz, J. I, Ed, Wiley-Interscience: Hoboken, NJ
    • In Kirk - Othmer Encyclopedia of Chemical Technology, 5th ed.; Kroschwitz, J. I., Ed.; Wiley-Interscience: Hoboken, NJ, 2004-2005.
    • (2004) Kirk - Othmer Encyclopedia of Chemical Technology
  • 18
    • 57949113331 scopus 로고    scopus 로고
    • A mixture of 1 (6.8 g, 27 mmol) and Ti(OiPr)4 (8.3 mL, 28 mmol) was heated at 140°C for 1.5 h. The resulting yellow liquid solidified upon cooling to room temperature and was extracted twice with hexanes (70 mL each, Cooling at -20°C for 2 days afforded colorless crystals of 2. Yield: 11.4 g, 79, Mp: 74-76°C. 1H NMR (400.13 MHz, C6D6, δ 5.09 (s, broad, w 1/2 ≈ 73 Hz, OCH(CH3)2, 1H, 4.69 (s, broad, w1/2 ≈ 32 Hz, OCH(CH3) 2, 3H, 1.38 (d, broad, w1/2 ≈ 30 Hz, W, 6.0 Hz, OCH(CH3)2,6H, 1.30 (d, broad, w1/2 ≈ 13 Hz, J, 4.2 Hz, OCH(CH 3)2, 18H, 13C{1H} NMR (100.61, MHz, C6D6, δ 75.96 (broad, w1/2 ≈ 93 Hz, OCHCH
    • 3Ti: C, 40.46; H, 7.92. Found: C, 40.04; H, 7.24.
  • 19
    • 57949097573 scopus 로고    scopus 로고
    • Crystal data for 2: triclinic, space group P1, a, 10.4433(9) Å, b, 11.9712(10) Å, c, 13.2598(11) Å, α, 66.767(1)°, β, 72.717(2)°, γ, 69.662(1)°, V, 1403.5(2) Å3, Z, 1, μ(Mo Kα, 0.608 mm-1, Dc, 1.264 Mg/m 3, F000, 568, GOF on F2, 1.046, R1, 0.0586, wR2, 0.1194, F2, all data, data/restraints/ parameters 5078/7/293
    • 2, all data), data/restraints/ parameters 5078/7/293.
  • 25
    • 57949085152 scopus 로고    scopus 로고
    • 2, all data), data/restraints/parameters 9157/1/537.
    • 2, all data), data/restraints/parameters 9157/1/537.
  • 30
    • 57949084601 scopus 로고    scopus 로고
    • Water (38 mg, 2.1 mmol, 38 μL) was added in two portions via syringe to a solution of 2 (2.30 g, 2.1 mmol) in hexanes (60 mL) with cooling in an ice bath. The water droplets appeared to solidify upon contact with the cooled solution. A small amount of a fine colorless precipitate formed after ca. 15 min. The reaction mixture was slowly warmed to room temperature and stirred overnight. Filtration, concentration of the pale-yellow filtrate to ca. 5 mL, and redissolution of the precipitate by brief gentle heating afforded large (>3 mm) yellow crystals of 3 after 1 h (0.49 g) at room temperature. A second crop was obtained after cooling of the concentrated mother liquor at -20°C for 2 days. Yield: 0.94 g, 54, Mp: 105-107°C. 1H NMR (400.13 MHz, C6D6, δ 5.19 (sept, J, 6.0 Hz, OCH(CH3)2, 5H, 5.10 (s, broad, w 1/2 ≈ 67 Hz, OCH(CH3)2, 2H
    • 4: C, 37.28; H, 7.30; N, 17.39. Found: C, 34.44; H, 6.74; N, 15.50.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.