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Volumn 12, Issue 8, 2010, Pages 1808-1811

FeCl3-catalyzed highly diastereoselective synthesis of substituted piperidines and tetrahydropyrans

Author keywords

[No Author keywords available]

Indexed keywords

CHLORIDE; FERRIC CHLORIDE; FERRIC ION; PIPERIDINE DERIVATIVE; PYRAN DERIVATIVE;

EID: 77951153520     PISSN: 15237060     EISSN: 15237052     Source Type: Journal    
DOI: 10.1021/ol100422d     Document Type: Article
Times cited : (116)

References (89)
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    • For recent examples, see
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    • For other examples, see
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    • references cited therein
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    • For other examples and nucleophiles, see
    • For other examples and nucleophiles, see
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    • 77951202063 scopus 로고    scopus 로고
    • See also ref 7b.
    • See also ref 7b.
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    • For a recent review, see ref 3c and references cited therein. For Pd(II)-catalyzed processes, see
    • For a recent review, see ref 3c and references cited therein. For Pd(II)-catalyzed processes, see
  • 79
    • 77951172989 scopus 로고    scopus 로고
    • references cited herein.
    • and references cited herein.
  • 82
    • 77951192810 scopus 로고    scopus 로고
    • 3 was also evaluated in order to catalyze the cyclization and lead to the same result as observed with the more easy-to-handle hexahydrate.
    • 3 was also evaluated in order to catalyze the cyclization and lead to the same result as observed with the more easy-to-handle hexahydrate.
  • 83
    • 77951152609 scopus 로고    scopus 로고
    • 2, no conversion was observed.
    • 2, no conversion was observed.
  • 84
    • 77951163023 scopus 로고    scopus 로고
    • Due to synthetic purposes, N -protected -amino allylic acetates were used in this study rather than the corresponding N -protected -amino allylic alcohols. See the Supporting Information for details.
    • Due to synthetic purposes, N -protected -amino allylic acetates were used in this study rather than the corresponding N -protected -amino allylic alcohols. See the Supporting Information for details.
  • 85
    • 77951151688 scopus 로고    scopus 로고
    • The cis -relationship for piperidine 4a was unambiguously established by X-ray structure analysis. See the Supporting Information for details. The cis -relationship for piperidines 4b - g was assigned by comparison with piperidine 4a.
    • The cis -relationship for piperidine 4a was unambiguously established by X-ray structure analysis. See the Supporting Information for details. The cis -relationship for piperidines 4b - g was assigned by comparison with piperidine 4a.
  • 86
    • 77951175372 scopus 로고    scopus 로고
    • Similar allylic substrates have been previously used for related cyclizations using Pd, Ir, or Au catalysts; see refs 3c, 15b, and 16.
    • Similar allylic substrates have been previously used for related cyclizations using Pd, Ir, or Au catalysts; see refs 3c, 15b, and 16.
  • 87
    • 77951168195 scopus 로고    scopus 로고
    • The cis -relationship was confirmed by NOE experiments for tetrahydropyrans 6b, 6d, 6g, and 6i.
    • The cis -relationship was confirmed by NOE experiments for tetrahydropyrans 6b, 6d, 6g, and 6i.
  • 88
    • 77951151069 scopus 로고    scopus 로고
    • (1 RS,7 R)- 5e was prepared from the commercially available (R)-propylene oxide (ee >98%).
    • (1 RS,7 R)- 5e was prepared from the commercially available (R)-propylene oxide (ee >98%).
  • 89
    • 77951166745 scopus 로고    scopus 로고
    • In this case, the equilibration conditions led to the formation of the most stable spiroketal resulting from double anomeric stabilization.
    • In this case, the equilibration conditions led to the formation of the most stable spiroketal resulting from double anomeric stabilization.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.