AbstractThe direct α‐alkoxylation of ketones with alcohols via a sodium iodide‐catalyzed oxidative cross‐coupling has been developed. This protocol enables a range of alkyl aryl ketones to cross‐couple with an array of alcohols in synthetically useful yields. The mechanistic studies provided solid evidence supporting that an α‐iodo ketone was a key reaction intermediate, being converted into an α‐alkoxylated ketone via further oxidation to a hypervalent iodine species rather than a common nucleophilic substitution, and was generated from the ketone starting material via a radical intermediate. These new mechanism insights should have an effect on the design of iodide‐catalyzed oxidative cross‐coupling reactions between nucleophiles.magnified image
A simple synthetic method of α-arylalkanoic acids was accomplished by the use of a novel 1,2-rearrangement of the arylgroup and this method was applied to the syntheses of some biologically important substances.
(EN) Compounds of formula (I): wherein Rx is cyano or bromo; R1 is halo; R2 is C1-C3 alkyl, and pharmaceutically acceptable salts and prodrugs thereof have activity as antiretrovirals.(FR) L'invention concerne des composés de formule (I), dans laquelle Rx représente cyano ou bromo, R1 représente halo; R2 représente alkyle C1-C3, des sels et des promédicaments desdits composés, acceptables sur le plan pharmaceutique, ayant une activité antirétrovirus.
Compounds of the formula I:
1
R
x
is cyano or bromo;
R
1
is halo;
R
2
is C
1
-C
3
alkyl,
and pharmaceutically acceptable salts and prodrugs thereof have activity as antiretrovirals.