Studies on the synthesis of croomine: Synthesis of the tricyclic B,C,D-ring core structure

Synlett

Volumn , Issue 5, 2004, Pages 779-782

  Lindsay, Karl B ^a   Pyne, Stephen G ^a  

^a UNIVERSITY OF WOLLONGONG   (Australia)

Author keywords

Azepine; Oxazolindone; Pyrrolidine; Ring closing metathesis; Stemona alkaloid

Indexed keywords

EPOXIDE;

AMINOLYSIS; ARTICLE; CHEMICAL PROCEDURES; CHEMICAL REACTION; CHEMICAL STRUCTURE; CHIRALITY; STRUCTURE ANALYSIS; SYNTHESIS;

EID: 1942489655     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2004-817773     Document Type: Article

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36. 2Ar), 73.3 (d, C1′), 82.0 (d, C1), 113.7 (d, 2 x ArCH), 129.2 (d, 2 x ArCH), 129.6, 132.2 (d, C6 and C7), 130.8 (s, ArC), 159.0 (s, ArC), 162.4 (s, C3).
37. 3CSi], 25.0, 25.1, 26.2, 27.1, 28.1, 30.0, 34.1 (t, C1, C2, C6, C7, C8, C2′, C3′), 48.3 (t, C7), 64.2 (t, C4′), 66.2 (d, C3), 66.7 (d, C9a), 74.0 (d, C9), 76.5 (d, C1′), 127.4, 127.5, 129.4, 129.5 (d, SiPh), 134.2, 134.2, 134.2, 134.5, 134.6, 134.7 (s, SiPh), 136.0, 136.0, 136.0 (d, SiPh).
38. 3): δ = 22.9 (t, C7), 27.9, 28.9, 29.4, 30.1, 32.1, 34.8 (t, C1, C2, C6, C8, C2′, C3′), 52.5 (t, C5), 62.9 (t, C4′), 65.3 (d, C9a), 71.0 (d, C3), 72.6 (d, C9), 72.8 (d, C1′).
39. 3): δ = 16.8 (t, C7), 25.4 (t, C4′), 28.8 (t, C3′), 28.9, 29.2 (t, C6, C8), 31.5 (t, C2), 31.6 (t, C1), 68.7 (d, C9a), 70.9 (d, C3), 78.9 (d, C9), 85.3 (d, C5′), 96.0 (d, C5), 177.0 (s, CT).
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