931-05-5Relevant articles and documents
An improved synthesis of dialkylcyclopropenones
Netland, Kjetil Andreas,Gundersen, Lise-Lotte,Rise, Frode
, p. 1767 - 1777 (2007/10/03)
Dialkylcyclopropenones are formed in high yields when alkynes are treated with chloroform-butyllithium in THF at - 78 °C followed by acidic hydrolysis of the dichlorocyclopropene intermediates at low temperatures.
- the Wet Chemical Route to a Highly Reactive Titanium Hydride
Becker, Beate,Bogdanovic, Borislav
, p. 476 - 482 (2007/10/02)
The reaction between catalytically prepared magnesium hydride (MgH2*) and in a molar ratio of 1.5:1 in THF yields a highly pyrophoric, X-ray amorphous titanium hydride precipitate with the composition (2).This novel titanium hydride precipitate with the composition (2).This novel titanium hydride has been characterized through hydrolysis and iodolysis, as well as through thermolysis to Ti* and H2 in the solid state and in organic solvents. 2 is slightly soluble in THF and proves itself as an active reagent in a variety of reactions. - Keywords: Magnesium Hydride, Titanium Hydride, McMurry-Reaction, Titanium
POLYMETHYLATION OF ORGANOCHLOROSILANES
Podol'skii, A. V.,Khonina, T. G.,Lyampasova, T. P.,Kodess, M. I.
, p. 1476 - 1480 (2007/10/03)
Polychloromethylation of Me3SiCl, Me2PhSiCl, Me2SiCl2, and MePhSiCl2 in the system magnesium-chloroform-THF has been studies under mild conditions (in the temperature renge 60 -65 deg C), and a scheme of formation of the main and by-products has been proposed.
Reactivity of in situ Generated Dihalomethyllithium towards Dicarboxylic Acid Diesters and Lactones: Synthetic Applications
Barluenga, Jose,Llavona, Lujan,Yus, Miguel,Concellon, Jose M.
, p. 7875 - 7886 (2007/10/02)
The reaction of dicarboxylic acid diesters 1, with in situ generated dihalomethyllithium (1:1.4 molar ratio) at -78 deg C leads, after hydrolysis, to the corresponding dihalomethylketoesters 3.The same process using an excess of the carbenoid (1:4 molar r
