Thiemann, Thies published the artcileFacile, direct reaction of benzaldehydes to 3-arylprop-2-enoic acids and 3-arylprop-2-ynoic acids in aqueous medium, Recommanded Product: (E)-3-(2,4-Dimethoxyphenyl)acrylic acid, the publication is International Journal of Organic Chemistry (2016), 6(2), 126-141, database is CAplus.
Wittig reactions of benzaldehydes, alkanals, and cycloalkanals as well as of acetophenones are carried out with alkoxycarbonyl methylidenetriphenylphosphoranes in 10 w% aqueous NaOH, where the cinnamates and alkenoates produced are hydrolyzed in situ and the corresponding acids are obtained after mostly simple extractive work-up, often without employing organic solvents. Under the same conditions, benzaldehydes are reacted with alkoxycarbonyl bromomethylidenephosphorane to produce 3-arylprop-2-ynoic acids (arylpropiolic acids).
International Journal of Organic Chemistry published new progress about 16909-09-4. 16909-09-4 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Benzene,Ether, name is (E)-3-(2,4-Dimethoxyphenyl)acrylic acid, and the molecular formula is C25H34N4O2S, Recommanded Product: (E)-3-(2,4-Dimethoxyphenyl)acrylic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia