51849-53-7Relevant academic research and scientific papers
Rhodium-catalyzed direct C - H addition of 4,4-dimethyl-2-oxazoline to alkenes
Wiedemann, Sean H.,Bergman, Robert G.,Ellman, Jonathan A.
, p. 1685 - 1687 (2007/10/03)
A new method for the preparation of 2-substituted oxazolines by rhodium-catalyzed coupling of alkenes with 4,4-dimethyl-2-oxazoline is reported. The oxazoline products are obtained in good yield with excellent selectivity for the linear product. A variety of alkene substitution patterns and functional groups are tolerated. This procedure represents an attractive alternative to hydroesterification because it does not involve the manipulation of CO gas.
Novel Synthesis of α-Substituted Acrylic Acids
Serota, S.,Simon, J. R.,Murray, E. B.,Linfield, W. M.
, p. 4147 - 4151 (2007/10/02)
A facile three-step procedure has been developed for the synthesis of α-substituted acrylic acids.In the first step, a carboxylic acid having no α-substituents is condensed with 2-amino-2-methylpropanol (AMP) to form the corresponding oxazoline.The oxazoline reacts readily with paraformaldehyde to give an intermediate mixture of mono- and dimethylol derivatives which upon heating forms the α-methylene derivatives of the oxazoline.The latter, upon acid hydrolysis, yields the α-substituted acrylic acid generally in an overall yield of above 70percent and the acids are usually at least 95percent pure.
