Dihalocarbenes have been generated by thermal decomposition
of sodium trichloroacetate and tribromomethylphenylmercury, and
give mono dihalocyclopropyl adducts with steroid dienes. Such
compounds offer an easy starting point for the synthesis of unusual
derivatives of potential biological interest. Under the same conditions,
however, addition to non-conjugated double bonds does not
take...
The methanolysis of phosphorus trichloride coordinated to nickel
(0) has been studied. Free phosphorus trichloride reacts with methanol
to give dimethyl hydrogen phosphonate, methyl chloride, and hydrogen
chloride. The reaction involves a rearrangement on phosphorus using
the lone pair, in which the coordination number increases from three
to four. In...