Orthocyclophanes. $5.^1$ Functionalization of [$1_6$] Starand on the Aromatic Ring

References

1. J. Org. Chem. v.59 Orthocyclophanes. 4. Functionalization of [1n]orthocyclophanes on the Aromatic Rings. Lee, W. Y.;Park, C. H.;Kim, E. H.
2. J. Am. Chem. Soc. v.115 Lee W. Y.;Park, C. H.;Kim, S.
3. J. Org. Chem. v.58 Lee, W. Y.;Park, C. H.
4. Synlett Lee, W. Y.
5. Cation Binding by Lariat Ethers. In Cation Binding by Macrocycles, Gokel, G. W.;Trafton, J. E.;Inoue, Y.(ed.);Gokel G. W.(ed.)
6. Reduction of 4-methlphthalic anhydride with LAH followed by monobromination of the resulting 1,2-bis(hydroxy-methyl)-4-methylbenzene with HBr in benzene gave rise to two isomeric benzyl alcohols, 2-(bromomethyl)-4-methy-lbenzyl alcohol and 2-(bromomethyl)-5-methylbenzyl alcohol, which were protected with dihydropyran in the presence of catalytic amounts of p-TsOH to give 1a and 1b(69% overall yidle from 1,2-bis(hydroxymethyl)-4-methyl-benzene)
7. J. Org. Chem. v.57 The precursor of the dilithio reagent 7, bis(2-bromophenyl)methane was prepared by modification of the literature procedures Lee, W. Y.;Park, C. H.;Kim, Y. D.
8. J. Org. Chem. v.31 Trahanoysky, W. S.;Young, L. B.