Cycloaromatization of a non-conjugated polyenyne system: Synthesis of 5H-benzo[d]fluoreno[3,2-b]pyrans via diradicals generated from 1-[2-{4-(2-alkoxymethylphenyl)butan-1,3-dinyl}]phenylpentan-2,4-diyn -1-ols and trapping evidence for the 1,2-didehydrobenzene diradical

Tetrahedron Letters

Volumn 38, Issue 22, 1997, Pages 3943-3946

  Miyawaki, Kazuhiro ^a   Suzuki, Riho ^a   Kawano, Tomikazu ^a   Ueda, Ikuo ^a  

^a OSAKA UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

5H BENZO[D]FLUORENO[3,2 B]PYRAN DERIVATIVE; PYRAN DERIVATIVE; RADICAL; UNCLASSIFIED DRUG;

ARTICLE; CHEMICAL REACTION; CHEMICAL STRUCTURE; CYCLIZATION; SYNTHESIS;

BETULACEAE;

EID: 0030955403     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(97)00785-5     Document Type: Article

References (25)

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24. 2Si: C, 78.43; H, 5.79%. Found: C, 78.47; H, 5.52 %.
25. w 0.094 ; 0.095. formula presented Fig. 1. Molecular structure of 3