The Journal of Organic Chemistry

Proton NMR study of two tetradehydrocyclodecabiphenylenes

CF Wilcox Jr, KA Weber

Index: Wilcox, Charles F,; Weber, Karl A. Journal of Organic Chemistry, 1986 , vol. 51, # 7 p. 1088 - 1094

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Citation Number: 17

Abstract

5, 6, 9, 10-Tetradehydrobenzo [7, 8] cyclodeca [l, 2, 3, 4-de~ biphenylene (2) and 5, 6, 9, 10- tetradehydronaphtho-[2, 3: 7, 8] cyclodeca [l, 2, 3, 4-deflbiphenylene (3) were prepared by a" bis-Wittig" reaction between l&bis ((tri-phenylphosphorany1idene) methyl) biphenylene (5) and o-phthalaldehyde (8), or 2, 3-naphthalenedicarboxaldehyde (9), respectively. Bromination of the resultant alkenes and subsequent dehydrobromination gave the ...