(2E)-3,4-Dichlorophenyl 1,1-dimethylethyl PCA is mentioned in development of the first two-pore domain potassium channel TWIK-related K+ channel 1-selective agonist possessing in vivo antinociceptive activity , and in preparation of cyclopentylacetic acid derivatives as NEP inhibitors . (2E)-2-Trifluoromethylphenyl 1,1-dimethylethyl PCA is mentioned in preparation of 2-cyanopropanoic acid, amide and ester derivatives as estrogen receptor selective NF-κB inhibitors for the treatment of sepsis , and in preparation of 2-cyanopropanoic acid amide and ester derivatives as estrogen receptor binding agents for use as antiinflammatory and immunomodulatory agents . 4-(trifluoromethyl)phenyl ethyl PCA is reported in C(sp 3 )-H functionalizations of light hydrocarbons using decatungstate photocatalysis ; in a study of kinetic isotope effects for various hydride transfer reactions ; in conjugate hydrocyanation of αcyanoacrylates using potassium hexacyanoferrate(II) as cyanating reagent ; in study of solid superbase derived from lanthanum-magnesium composite oxide and its catalytic performance in the Knoevenagel condensation under solvent-free condition ; in novel multicomponent reaction involving isoquinoline, allenoate and cyanoacrylates ; in construction of heterocycles via 1,4-dipolar cycloaddition of quinoline-DMAD zwitterion with various dipolarophiles ; in a novel three-component reaction of triphenylphosphine, DMAD, and electron-deficient styrenes: synthesis of cyclopentenyl phosphoranes , and in the multicomponent reaction of dimethoxycarbene, dimethyl butynedioate and electrophilic styrenes leading to synthesis of highly substituted cyclopentenone acetals . 2,4,6-Trimethylphenyl ethyl PCA as well as its butyl PCA were prepared and copolymerized with styrene, in addition to being involved in catalyst study of the Knoevenagel condensation . 4-Hydroxy-3,5dimethoxyphenyl ethyl PCA is mentioned in synthesis of biologically potent heterocycles ; in study of main-chain and guest-host NLO polymers , whereas its isopropyl PCA was synthesized and copolymerized with ethenyl benzene .