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Volumn 34, Issue 8, 2005, Pages 1180-1181

Synthesis of novel dendritic α-glycol ligands derived from DL-dithiothreitol and their application to ring-opening polymerization of ε-caprolactone

Author keywords

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Indexed keywords


EID: 26844454823     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2005.1180     Document Type: Article
Times cited : (9)

References (33)
  • 21
    • 26844511039 scopus 로고    scopus 로고
    • note
    • 2: C, 67.86; H, 6.08; S, 3.07%. Found: C, 67.82; H, 5.93; S, 2.90%.
  • 22
    • 26844446203 scopus 로고    scopus 로고
    • note
    • Typical procedure: A toluene solution of diethylaluminum ethoxide (0.314 M, 0.30 mL) was added to a dry toluene solution (1.5 mL) of 2[G1] (42.9 mg, 0.0944 mmol), and the solution was stirred at room temperature under an argon atmosphere for 2 h to prepare 3[G1] in situ.
  • 23
    • 26844441657 scopus 로고    scopus 로고
    • note
    • 1H NMR after removal of toluene in vacuo.
  • 26
    • 26844581442 scopus 로고    scopus 로고
    • note
    • 7 was added at room temperature under an argon atmosphere. After stirring the resulting mixture for 1.5 h, the ring-opening polymerization was completed (monitored by TLC). After removal of toluene in vacuo, chloroform (5 mL) was added to the polymerization mixture. To methanol (500 mL) the chloroform solution was added dropwise, followed by the addition of 10% methanolic hydrochloric acid (10 mL). The resulting precipitate was filtered, washed with a large amount of methanol, and dried at room temperature for 15 h in vacuo (1.017 g).
  • 27
    • 26844447636 scopus 로고    scopus 로고
    • note
    • 2 derived from initiator 3 could be easily separated from precipitated polymer mixture by GPC using JAIGEL-2H, 2.5H column.
  • 28
    • 26844458101 scopus 로고    scopus 로고
    • note
    • n: 1.19, Yield: 93%.
  • 29
    • 26844573697 scopus 로고    scopus 로고
    • note
    • n: 1.18, Yield: 94%.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.