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Volumn 31, Issue 17, 1998, Pages 5927-5929

Synthesis of optically active helical poly(3-methyl-4-vinylpyridine)

Author keywords

[No Author keywords available]

Indexed keywords

ANIONIC POLYMERIZATION; CONFORMATIONS; MOLECULAR STRUCTURE; MONOMERS; OPTICAL MATERIALS; SYNTHESIS (CHEMICAL); VINYL RESINS;

EID: 0032139457     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma971036n     Document Type: Article
Times cited : (20)

References (29)
  • 19
  • 24
    • 0000927815 scopus 로고
    • Intramolecular coordination of the metal ion by the penultimate pyridine nitrogen is highly unlikely in the poly(3-methyl-2-vinylpyridine) system as a result of the steric hindrance due the penultimate 3′-methyl group and has been demonstrated by studying the stereochemistry of methylation of 1-lithio-1-(2-pyridyl)-3-(3′-methylpyridyl)-butane. See: Mathis, C.; Hogen-Esch, T. E., J. Am Chem. Soc., 1982, 104, 634.
    • (1982) J. Am Chem. Soc. , vol.104 , pp. 634
    • Mathis, C.1    Hogen-Esch, T.E.2
  • 25
    • 84986869949 scopus 로고
    • With regards to a question raised by a reviewer, 3-methyl-4-vinylpyridine was selected over 3-methyl-2-vinylpyridine because this monomer may be polymerized with lithium amides in toluene. This has to do with the increased stability of the anion generated from the 3-methyl-4-vinylpyridine. Both monomers are polymerizable by n-BuLi in THF. Additionally, studies are available which report the initiation of 4-vinylpyridine by soft enolate anions, successful initiation of 2-vinylpyridine by such soft anions is not known. See: (a) Schulz, R. C. Makromol. Chem., Macromol. Symp. 1990, 33, 1. (b) Li, J.; Khan, I. M. Makromol. Chem. 1991, 192, 3043.
    • (1990) Makromol. Chem., Macromol. Symp. , vol.33 , pp. 1
    • Schulz, R.C.1
  • 26
    • 84986869949 scopus 로고
    • With regards to a question raised by a reviewer, 3-methyl-4-vinylpyridine was selected over 3-methyl-2-vinylpyridine because this monomer may be polymerized with lithium amides in toluene. This has to do with the increased stability of the anion generated from the 3-methyl-4-vinylpyridine. Both monomers are polymerizable by n-BuLi in THF. Additionally, studies are available which report the initiation of 4-vinylpyridine by soft enolate anions, successful initiation of 2-vinylpyridine by such soft anions is not known. See: (a) Schulz, R. C. Makromol. Chem., Macromol. Symp. 1990, 33, 1. (b) Li, J.; Khan, I. M. Makromol. Chem. 1991, 192, 3043.
    • (1991) Makromol. Chem. , vol.192 , pp. 3043
    • Li, J.1    Khan, I.M.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.