Ring trisubstituted, 3-bromo-4-ethoxy-5-methoxyphenyl 2-methoxyethyl phenylcyanoacrylate (PCA) is reported in biochemical evaluation studies of cell-active inhibitor of the cancer-promoting phosphatases of regenerating liver , and in dataset of log P measurements for benchmarking studies . 3-Bromo-4,5-dimethoxyphenyl ring substituted PCA is mentioned in studies of 4-aryl-2-oxo-2H-chromenes as a new series of apoptosis inducers using a cell-and caspase-based high-throughput screening assay , and in preparation of substituted coumarins and quinolinones as caspase activators for treatment of cancer . Another ring substituted PCA, 2-bromo-3-ethenyl-6-methoxyphenol is involved in the Mitsunobu reaction ; in studies culminating in the total synthesis of (dl)morphine , and in tandem intramolecular conjugate addition/intramolecular alkylation reactions of substituted vinyl sulfones . 4-Hydroxy-3,5-diiodophenyl is reported in electron transport inhibition of the cytochrome bc1 complex of rat-liver mitochondria by phenolic uncouplers . 2,3,4-Trifluoro-2-ethenyl benzene is mentioned in synthesis of isoxazolines and isoxazoles inspired by Fipronil , and in studies of infrared group frequency correlations for styrenes, α-methylstyrenes . 1,3,4-Trifluoro-2-ethenyl benzene is used in preparation ethylene-fluorostyrene copolymer , and in preparation of liquid crystal composition for LC display . 2,4,5-Trifluoro-2-ethenyl benzene was involved in Palladium-catalyzed intermolecular aminofluorination of styrenes . 1-Chloro-2-ethenyl-4,5-dimethoxy-benzene was involved in process for preparing styrene derivatives by a transition metal-catalyzed cross coupling of chlorostyrenes with organomagnesium compounds , and in process for preparing styrene derivatives by a transition metal-catalyzed cross coupling of chlorostyrenes with organomagnesium compounds .