Trichlorobutene appears as a colorless liquid. Insoluble in water and less dense than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion.
The present invention relates to substituted heterocyclic compounds of Formula I or XI:
or pharmaceutically acceptable salts or N-oxides or quaternary ammonium salts thereof wherein constituent members are provided hereinwith, as well as their compositions and methods of use, which are histamine II4 receptor inhibitors useful in the treatment of histamine II4 receptor-associated conditions or diseases or disorders including, for example, inflammatory diseases or disorders, pruritus, and pain.
The present invention relates to substituted pyrrole derivatives, which can be used as 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors. Compounds disclosed herein can function as cholesterol lowering agents and can be used for the treatment of cholesterol-related diseases and related symptoms. Processes for the preparation of disclosed compounds are provided, as well as, pharmaceutical compositions containing the disclosed compounds, and methods of treating cholesterol-related diseases and related symptoms.
Negatively substituted halomethanes were allylated easily by allyltin compounds via radical chain reaction involving SH′ process. Aryl, aralkyl, and alkyl halides underwent similar chain reactions only when the tin compound was charged in excessive amounts.
Phenyl(1,1-dichloroethyl)mercury has been prepared via 1,1-dichloroethyllithium and evaluated as a potential CH3CCl transfer agent. Although this mercurial reacted with triethylsilane to give Et3SiCHClCH3 (35%) and with allyltrimethylsilane to give 1-chloro-1-methyl-2-(trimethylsilylmethyl)cyclopropane (31%), its principal mode of reaction involved elimination of hydrogen chloride. The products resulting
Reactivite des organostanniques allyliques vis-a-vis des derives halogenes: aspects synthetiques et mecanisme
作者:Jean Grignon、Christian Servens、Michel Pereyre
DOI:10.1016/s0022-328x(00)83550-0
日期:1975.8
Allylic organotin compounds react with numerous organichalides by a substitution pathway with complete allylic shift. The radical chain mechanism proposed is supported by the reactivity sequences of halides, the stereochemistry, the influence of radical initiators or inhibitors, rearrangement, polar effects and the side products.