Synthesis

An Efficient Synthesis of Dibenzocycloocta-4a, 6a,-diene-5, 11-diyne and its Precursors

S Chaffins, M Brettreich, F Wudl

Index: Chaffins, Sterling; Brettreich, Michael; Wudl, Fred Synthesis, 2002 , # 9 p. 1191 - 1194

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Citation Number: 24

Abstract

Abstract 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 dibenzocyclooctatetraene 9, which is one of the key reagents now commercially unavailable.

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