An efficient synthesis of highly functionalized unsymmetrical biphenyls having substituents on the ortho positions
M Takahashi, Y Moritani, T Ogiku, H Ohmizu, K Kondo…
Index: Takahashi, Masami; Moritani, Yasunori; Ogiku, Tsuyoshi; Ohmizu, Hiroshi; Kondo, Kazuhiko; Iwasaki, Tameo Tetrahedron Letters, 1992 , vol. 33, # 35 p. 5103 - 5104
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Citation Number: 8
Abstract
Abstract The highly functionalized unsymmetrical biphenyls having electron-donating and/or electron-withdrawing substituents on the ortho positions were effectively synthesized based on the intramolecular Ullmann coupling reaction directed by salicyl alcohol as a template, followed by selective cleavage of the two ester bonds of 5.
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