2011
DOI: 10.1039/c0cc02170a
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Pushing the limits of steric demand around a biaryl axis: synthesis of tetra-ortho-substituted biaryl naphthalenes

Abstract: The synthesis of tetra-ortho-substituted biaryl naphthalenes, including examples bearing multiple ortho-isopropyl groups, has been developed via a catalytic rearrangement process.

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Cited by 9 publications
(2 citation statements)
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“…Although the aryletherification failed, the alternative strategy of forming the C−C bond at C8b led to success (Scheme ). Exposure of 17 to a three‐fold excess of (2‐fluoro‐4,6‐dimethoxyphenyl)lithium 25 led to desired diol 26 in 51 % yield as a single diastereomer probably due to the C3 and C3a aryl groups blocking β‐face approach of the nucleophile. The assembly of the dihydrobenzofuran ring took place readily upon exposure of 26 to LiTMP (lithium 2,2,6,6‐tetramethylpiperidide) leading to tricyclic product 27 in 64 % yield.…”
Section: Resultsmentioning
confidence: 99%
“…Although the aryletherification failed, the alternative strategy of forming the C−C bond at C8b led to success (Scheme ). Exposure of 17 to a three‐fold excess of (2‐fluoro‐4,6‐dimethoxyphenyl)lithium 25 led to desired diol 26 in 51 % yield as a single diastereomer probably due to the C3 and C3a aryl groups blocking β‐face approach of the nucleophile. The assembly of the dihydrobenzofuran ring took place readily upon exposure of 26 to LiTMP (lithium 2,2,6,6‐tetramethylpiperidide) leading to tricyclic product 27 in 64 % yield.…”
Section: Resultsmentioning
confidence: 99%
“…Liu et al. used a novel Eu(OTf) 3 ‐catalyzed ring‐expansion rearrangement of trimethylsilyl‐substituted cycloprop[2,3]inden‐1‐ol to synthesize substituted naphthalenes 5h,j. Shi et al.…”
Section: Substituent Effects On the Reactions Of Endo‐cycloprop[23]imentioning
confidence: 99%