Zobrazeno 1 - 10
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pro vyhledávání: '"Kim M. Touchette"'
Autor:
Kim M. Touchette, Hilton M. Weiss
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1523-1528
The addition of 0.1 M quaternary ammonium bromide to a solution of 20% trifluoroacetic acid in methylene chloride causes a large rate increase in the reaction of non-conjugated alkynes. The initial vinyl bromide product reacts further to provide a mi
Autor:
Hilton M. Weiss, Kim M. Touchette
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1517-1522
The addition of 0.1 M quaternary ammonium halide to a solution of 20% trifluoroacetic acid in methylene chloride causes a large rate increase in the reaction of simple alkenes leading to a mixture of alkyl halides and trifluoroacetates. The mechanism
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :756-758
The reaction of oct-4-yne with 20% trifluoroacetic acid and a variety of relatively weak nucleophiles in methylene chloride was found to produce a mixture of anion incorporated and solvent incorporated products. The rates of these reactions with a ra
Autor:
Kim M. Touchette, Hilton M. Weiss
Publikováno v:
ChemInform. 29
The addition of 0.1 M quaternary ammonium bromide to a solution of 20% trifluoroacetic acid in methylene chloride causes a large rate increase in the reaction of non-conjugated alkynes. The initial vinyl bromide product reacts further to provide a mi
Publikováno v:
The Journal of Organic Chemistry. 57:6305-6313
Furano alcohol 5, the key intermediate in our proposed synthesis of the guaianolide sesquiterpene geigerin (1), was prepared by a novel sequence of reactions which includes a chemoselective oxy-Cope transformation of enynols of general structure 42.
Publikováno v:
Organicbiomolecular chemistry. 1(12)
In a weakly acidic solution, the addition of HBr to 1-phenylprop-1-yne produces predominantly the anti-Markovnikov product. In this paper, we consider five possible explanations for this behavior and conclude that the concerted addition is occurring
Autor:
Kim M. Touchette
Publikováno v:
Journal of Chemical Education. 83:929
The synthesis of N-(2-hydroxy-3-methoxybenzyl)-N-p-tolylacetamide is a fast, simple three-step sequence that serves as a useful example of the reductive amination reaction for the organic chemistry laboratory. The first step is a spectacular solvent-
Publikováno v:
Organic & Biomolecular Chemistry. 1:2148
The reaction of aryl alkynes with dilute methylene chloride solutions of quaternary ammonium bromide and 20% trifluoroacetic acid produces primarily the syn Markovnikov adducts of hydrogen bromide. At moderate concentrations of the bromide, the princ
Publikováno v:
Organic & Biomolecular Chemistry. 1:2152
In a weakly acidic solution, the addition of HBr to 1-phenylprop-1-yne produces predominantly the anti-Markovnikov product. In this paper, we consider five possible explanations for this behavior and conclude that the concerted addition is occurring
Publikováno v:
Journal of Chemical Education. 71:534