Phthalocyanines and Related Compounds: XXXIX. Synthesis of Derivatives of Some Substituted 1-Phenylnaphthalene-2,3-dicarboxylic Acids
作者:V. F. Donyagina、E. A. Luk”yanets
DOI:10.1007/s11176-005-0320-0
日期:2005.5
Derivatives (dinitriles, anhydrides, imides, N -phenylimides) of substituted 1-phenylnaphthalene-2,3-dicarboxylic and 1-phenylphenanthrene-2,3-dicarboxylic acids were prepared by the reactions of 2-bromomethylbenzophenones with various dienophiles. Starting from these derivatives, gallium complexes of substituted tetra-1-phenyl-2,3-naphthalocyanines and tetra(1-phenyl-2,3-phenanthro)porphyrazine were
Tf2O as a rapid and efficient promoter for the dehydrative Friedel–Crafts acylation of aromatic compounds with carboxylic acids
作者:Mohammd Mehdi Khodaei、Abdolhamid Alizadeh、Ehsan Nazari
DOI:10.1016/j.tetlet.2007.04.066
日期:2007.6
The Friedel–Craftsacylation of aromatic compounds with carboxylic acids was investigated in the presence of Tf2O. The reaction was carried out efficiently and very rapidly under mild reaction conditions without the need of any catalyst.
Gold-catalyzed cyclo-isomerization of 1,6-diyne-4-en-3-ols to form naphthyl ketone derivatives
作者:Jian-Jou Lian、Rai-Shung Liu
DOI:10.1039/b618291g
日期:——
We report a new efficient gold-catalyzed cyclization of 1,6-diyne-4-en-3-ols to give naphthylketone derivatives under ambient conditions. The value of this cyclization is reflected by its applicability to a wide range of alcohol substrates.
Lewis Acid-Catalyzed [4 + 2] Benzannulation between Enynal Units and Enols or Enol Ethers: Novel Synthetic Tools for Polysubstituted Aromatic Compounds Including Indole and Benzofuran Derivatives
作者:Naoki Asao、Haruo Aikawa
DOI:10.1021/jo060597m
日期:2006.7.1
enynals 1, including o-(alkynyl)benzaldehydes, and carbonyl compounds 2, such as aldehydes and ketones, in the presence of a catalytic amount of AuBr3 in 1,4-dioxane at 100 °C gave the functionalized aromaticcompounds 3 in high yields. Similarly, the AuBr3-catalyzed reactions of 1 with acetal compounds 5 afforded the corresponding aromaticcompounds 3 in good yields. On the other hand, when the reaction
Sulfated zirconia (SZ) exhibits a high catalytic performance in the benzoylation of 1-methoxynaphthalene. Therefore, it was used as heterogeneous catalyst in the acylation of methoxynaphthalenes, methylnaphthalenes, naphthalene, and anthracene with benzoic anhydride, benzoyl chloride, and acetic anhydride to synthesize aromatic ketones. The rate of product formation on SZ was dependent on the respective