Synthèses dans la série des bis-indéno-f
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Louis Chardonnens; Jean-Luc Barras
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Article
📅
1974
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John Wiley and Sons
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German
⚖ 440 KB
👁 1 views
## Abstract By condensation according __Ullmann__ of 2‐iodo‐9‐oxo‐fluorene with 3‐bromo‐2‐cyano‐9‐oxo‐fluorene, followed by cyclisation and reduction, the new linear 13,15‐dihydro‐__7H__‐diindeno[2.1‐__b__; 2′.1′‐__h__]fluorene (III) is synthesized in 3 steps. The 6‐methyl‐derivative of II is also