An efficient synthesis of dibenzocycloocta-4a, 6a, -diene-5,11-diyne and its precursors
An efficient synthesis of dibenzocycloocta-4a, 6a, -diene-5,11-diyne and its precursors
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DOI:
10.1055/s-2002-32542
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发表时间:
2002-06
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影响因子:
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通讯作者:
S. Chaffins;M. Brettreich;F. Wudl
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文献类型:
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作者:
S. Chaffins;M. Brettreich;F. Wudl
Two efficient syntheses of dibenzocyclooctadienediyne 1 were developed employing known reactions, which utilize commercially available reagents. Both methods are an improvement on known syntheses resulting in 41% and 43% overall yields. The latter method also offers an efficient synthesis of dibenzocyclooctateraene 9, which is one of the key reagents now commercially unavailable.