메뉴 건너뛰기




Volumn 46, Issue 52, 2005, Pages 9049-9052

Synthesis of fused imidazo azepine derivatives by sequential van Leusen/enyne metathesis reactions

Author keywords

Enyne metathesis; Multicomponent reactions; Van Leusen

Indexed keywords

AZEPINE DERIVATIVE; IMIDAZOLE DERIVATIVE;

EID: 28244472285     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2005.10.089     Document Type: Article
Times cited : (44)

References (47)
  • 1
    • 2542509173 scopus 로고    scopus 로고
    • For reviews on Ugi 4-CC reaction and other MCRs with isocyanides, see: A. Dömling, and I. Ugi Angew. Chem., Int. Ed. 39 2000 3168 3210
    • (2000) Angew. Chem., Int. Ed. , vol.39 , pp. 3168-3210
    • Dömling, A.1    Ugi, I.2
  • 6
    • 0033525660 scopus 로고    scopus 로고
    • Examples of post-Ugi transformations include the following: Diels-Alder reactions: K. Paulvannan Tetrahedron Lett. 40 1999 1851 1854
    • (1999) Tetrahedron Lett. , vol.40 , pp. 1851-1854
    • Paulvannan, K.1
  • 40
    • 0037429020 scopus 로고    scopus 로고
    • This treatment results in the formation of the imidazolium ion, preventing the lone pair of the imidazole nitrogen from inactivating the Grubbs catalyst. See reference: Y. Chen, H.V.R. Dias, and C.J. Lovely Tetrahedron Lett. 44 2003 1379 1382 Our reaction failed to yield the enyne product in the absence of this pretreatment procedure
    • (2003) Tetrahedron Lett. , vol.44 , pp. 1379-1382
    • Chen, Y.1    Dias, H.V.R.2    Lovely, C.J.3
  • 41
    • 28244490027 scopus 로고    scopus 로고
    • note
    • 3): δ 1.93 (s, 3H), 2.59 (m, 2H), 3.17 (d, J = 6.0 Hz, 2H), 4.83 (s, 2H), 5.02 (d, J = 9.0 Hz, 2H), 5.95 (t, J = 3.0 Hz, 1H), 7.25 (m, 1H), 7.38 (m, 2H), 7.46 (s, 1H), 7.62 (d, J = 6.0 Hz, 2H); MS (ESI): m/z 251 (M+H).
  • 42
    • 0000415626 scopus 로고    scopus 로고
    • The use of ethylene gas is reported to give improved yields in the enyne metathesis of terminal alkynes. See reference: M. Mori, N. Sakakibara, and A. Kinoshita J. Org. Chem. 63 1998 6082 6083 We did not try the enyne metathesis of terminal alkynes using ethylene gas
    • (1998) J. Org. Chem. , vol.63 , pp. 6082-6083
    • Mori, M.1    Sakakibara, N.2    Kinoshita, A.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.