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Volumn 129, Issue 10, 2007, Pages 2766-2767

Cation-π control of regiochemistry of intramolecular Schmidt reactions en route to bridged bicyclic lactams

Author keywords

[No Author keywords available]

Indexed keywords

AMIDE; CATION; LACTAM DERIVATIVE; QUINUCLIDONE; UNCLASSIFIED DRUG;

EID: 33947196212     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja068919r     Document Type: Article
Times cited : (89)

References (22)
  • 1
    • 0011723644 scopus 로고
    • For twisted amide reviews: see a
    • For twisted amide reviews: see (a) Greenberg, A. Mol. Struct. Energ. 1988, 7, 139-178.
    • (1988) Mol. Struct. Energ , vol.7 , pp. 139-178
    • Greenberg, A.1
  • 4
    • 0031901521 scopus 로고    scopus 로고
    • For some recent papers regarding the reactivity of twisted amides: see a
    • For some recent papers regarding the reactivity of twisted amides: see (a) Kirby, A. J.; Komarov, I. V.; Wothers, P. D.; Feeder, N. Angew. Chem., Int. Ed. 1998, 37, 785-786.
    • (1998) Angew. Chem., Int. Ed , vol.37 , pp. 785-786
    • Kirby, A.J.1    Komarov, I.V.2    Wothers, P.D.3    Feeder, N.4
  • 11
    • 0034199893 scopus 로고    scopus 로고
    • The first example of any bridged product from an intramolecular Schmidt reaction actually occurred during synthetic studies toward aspidospermidine. However, this involved the reaction of a nonadjacent azidoalkyl chain with a ketal. affording a bridged orthoaminal product and not a lactam. See: (a) Iyengar, R, Schildknegt, K, Aube, J. Org. Lett. 2000, 2, 1625-1627
    • The first example of any bridged product from an intramolecular Schmidt reaction actually occurred during synthetic studies toward aspidospermidine. However, this involved the reaction of a nonadjacent azidoalkyl chain with a ketal. affording a bridged orthoaminal product and not a lactam. See: (a) Iyengar, R.; Schildknegt, K.; Aube, J. Org. Lett. 2000, 2, 1625-1627.
  • 13
    • 33947282473 scopus 로고    scopus 로고
    • The A values for Ph and i-Pr are 2.8 and 2.21, respectively.
    • The A values for Ph and i-Pr are 2.8 and 2.21, respectively.
  • 14
  • 22
    • 33947288262 scopus 로고    scopus 로고
    • 4 provided compound 9b as a single product in 92% yield, suggesting that the regiochemistry of the reaction is Lewis acid-dependent. Further work to examine this point is in progress.
    • 4 provided compound 9b as a single product in 92% yield, suggesting that the regiochemistry of the reaction is Lewis acid-dependent. Further work to examine this point is in progress.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.