Synthetic Applications and Mechanistic Studies of the Hydroxide-Mediated Cleavage of Carbon–Carbon Bonds in Ketones
作者:Andrea Mazziotta、Ilya S. Makarov、Peter Fristrup、Robert Madsen
DOI:10.1021/acs.joc.7b00802
日期:2017.6.2
ketones into alkanes and carboxylicacids has been reinvestigated and the substrate scope extended to benzyl carbonyl compounds. The transformation is performed with a 0.05 M ketone solution in refluxing xylene in the presence of 10 equiv of potassium hydroxide. The reaction constitutes a straightforward protocol for the synthesis of certain phenyl-substituted carboxylicacids from 2-phenylcycloalkanones
Disclosed are compounds of Formula (I): (I) or stereoisomers, salts, or prodrugs thereof, wherein: (i) R1 and R2 are independently C
1
-C
4
alkyl, or (ii) R
1
and R
2
together with the carbon atom to which they are attached, form a cyclic group; and Q is H, C
1-6
alkyl, phenyl or 5- to 6-membered heteroaryl substituted with zero to 3 substituents, and G is defined herein. Also disclosed are method of using such compounds as selective agonists for G protein-coupled receptor S1P1, and pharmaceutical compositions comprising such compounds. There compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and chronic inflammatory disease.