Botta, Bruno's team published research in Journal of Organic Chemistry in 62

Botta, Bruno published the artcileSynthesis of C-Alkylcalix[4]arenes. 4. Design, Synthesis, and Computational Studies of Novel Chiral Amido[4]resorcinarenes, Safety of (E)-3-(2,4-Dimethoxyphenyl)acrylic acid, the publication is Journal of Organic Chemistry (1997), 62(4), 932-938, database is CAplus.

In extending our studies involving BF₃¡¤Et₂O-catalyzed reaction of cinnamic acid analogs, we have shown that amido derivatives also can afford [4]resorcinarene octamethyl ethers. Subsequently, chiral monomeric amides, derived from the mixed anhydride of cinnamic acid and L– or D-valine, upon treatment with BF₃¡¤Et₂O, yielded for the first time chiral amido[4]resorcinarenes in enantiomerically pure forms. Four stereoisomers were isolated, and three of them were assigned the flattened-cone, chair, and 1,2-alternate conformations. The major product was assigned a novel chairlike structure, namely, flattened partial cone 1. The flattened-cone stereoisomer, which was indicated by mol. modeling studies to be the most stable, became the major product under more drastic exptl. conditions. Chromatog. studies on chiral phases revealed that the above tetramers could be used for the enantiodiscrimination of racemic mols.

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 C11H12O4, Safety of (E)-3-(2,4-Dimethoxyphenyl)acrylic acid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia