Wu, Shaoxiang published the artcileDiastereoselective and Enantioselective Epoxidation of Acyclic β-Trifluoromethyl-β,β-Disubstituted Enones by Hydrogen Peroxide with a Pentafluorinated Quinidine-Derived Phase-Transfer Catalyst, COA of Formula: C7H5Br2F, the publication is Advanced Synthesis & Catalysis (2013), 355(10), 1917-1923, database is CAplus.
An efficient catalytic asym. epoxidation of β-trifluoromethyl-β,β-disubstituted unsaturated ketones has been achieved by a pentafluorine-substituted phase-transfer catalyst with hydrogen peroxide (30%). Thus, the β-trifluoromethyl-α,β-epoxy ketones e. g., I, with a quaternary carbon center were obtained in excellent diastereoselectivities (up to 100:1 dr) and excellent enantioselectivities (up to 99.7% ee). Low catalyst loading, recycle of catalyst, environmentally benign oxidant and easy transformation of the epoxides into medicinally important trifluoromethylated intermediate make our protocol much more practical.
Advanced Synthesis & Catalysis published new progress about 76283-09-5. 76283-09-5 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzyl bromide,Benzene, name is 4-Bromo-1-(bromomethyl)-2-fluorobenzene, and the molecular formula is C10H2F12NiO4, COA of Formula: C7H5Br2F.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary