53575-46-5Relevant academic research and scientific papers
Rhodium(III) porphyrin-catalyzed reactions via activation of alkynes
Hasegawa, Makoto,Kurahashi, Takuya,Matsubara, Seijiro
, p. 1937 - 1939 (2014)
The cycloisomerization of 1,6-enynes catalyzed by rhodium(III) porphyr in under mild reaction conditions successfully afforded a five-membered ring system. The rhodium porphyrin was found to be a strong π-Lewis acid that could activate alkynes. Thus, rhod
Transition-Metal Catalyzed Stereoselective γ-Arylation and Friedel-Crafts Alkylation: A Concise Synthesis of Indenes
Ramesh, Karu,Satyanarayana, Gedu
supporting information, p. 3235 - 3242 (2020/06/02)
A highly stereoselective [Pd]-catalyzed arylation of tert-alkenols, is presented and applied to the synthesis of indenes using intramolecular Friedel–Crafts alkylation sequence. The initial Heck reaction is performed by using water as the green solvent. A simple acid triggers intramolecular alkylation in short reaction times at room temperature. Notably, indenes have been accomplished using a single column chromatography technique.
Reactions of arylacetylenic compounds with arenes in the presence of aluminum halides
Shchukin,Vasil'Ev,Grinenko
experimental part, p. 82 - 97 (2010/06/19)
Conjugated arylacetylenic ketones and aldehydes, propargyl-type alcohols, and arylacetylenes reacted with arenes in the presence of AlBr3 or AlCl3 as catalyst to give substituted indenes. 3-Arylpropynoic acids under analogous conditi
Reactive dications: The superacid-catalyzed reactions of alkynes bearing adjacent N-heterocycles or amine groups
Klumpp, Douglas A.,Rendy, Rendy,Zhang, Yun,McElrea, Aaron,Gomez, Alma,Dang, Han
, p. 8108 - 8110 (2007/10/03)
A variety of aminoalkynes and related heterocycles are reacted in the Bronsted superacid CF3SO3H (triflic acid), and products are obtained in generally good yields (69-99%) from Friedel-Crafts-type reactions. The reactions are consistent with the formation of novel dicationic intermediates having a vinyl cationic site and an adjacent protonated N-heterocycle or ammonium cation.
REACTIVITY OF CARBANIONS. XXI. KINETICS OF THE REACTION OF THE ALKALI-METAL SALTS OF CH ACIDS WITH 1-HALOGENOALKANES
Solov'yanov, A. A.,Karpyuk, A. D.,Sizov, A. Yu.,Beletskaya, I. P.,Reutov, O. A.
, p. 1461 - 1466 (2007/10/02)
The kinetics of the alkylation of the alkali-metal of triphenylmethane, fluorene, 1,3-diphenylindene, fluoradene, 9-methoxycarbonylfluorene, and 9-cyanofluorene by 1-halogenoalkanes with the general formula CH3(CH2)nX, where X = Cl, Br, and I and n varies between 0 and 5, were investigated in solvents of the ether type and in dipolar aprotic solvents.It was established that the rate constant for the alkylation of the carbanions decreases with increase in n from 0 to 2.The rate constant increases with further increase in the length of the alkyl chain.The observedextremal dependence of the reaction rate on n is due to the dynamic effects of the hydrocarbon chain.
REACTION OF BENZENE WITH PHENYLACETYLENE IN THE PRESENCE OF H3PO4*BF3
Ryabov, V. D.,Korobkov, V. Yu.
, p. 337 - 340 (2007/10/02)
In contrast to the known reactions of phenylacetylene with aromatic compounds, which lead to the formation of a mixture of phenylarylethylenes and phenyldiarylethanes, the reaction of benzene with phenylacetylene gives high yields of either 1-methyl-1,3,3-triphenylindane (III) or 1-methyl-1,3-diphenylindene (IV), depending on the conditions.In addition to the above-mentioned compounds, 1,1-diphenylethylene (I) and its dimer, 1,1,3,3-tetraphenyl-1-butene (II) were found in the reaction products.
