21473-02-9Relevant articles and documents
Synthesis of trifluoromethylated α-hydroxy acids and their derivatives based on alkyl trifluoropyruvates
Vasilyeva,Vorobyeva
, p. 1426 - 1432 (2018)
The reactions of trifluoropyruvates with nitromethane and arylmagnesium bromides leading to trifluoromethyl-containing α-hydroxy acid esters were studied and various derivatives of the acids were obtained.
Phenylbutanol derivatives and compositions containing them
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, (2008/06/13)
Phenylbutanol derivatives of the formula Z--C(CH3) (OH)--CH2 --Y wherein Z is 4-biphenyl or 4-phenoxyphenyl wherein the phenoxy group is unsubstituted or substituted by F, Cl or Br and Y is COOR2 or CH2 OR3 wherein R2 is H or alkyl of 1 to 6 carbon atoms and R3 is H or alkanoyl of 1 to 6 carbon atoms, and their physiologically acceptable salts, possess anti-inflammatory activity and are produced by (a) treating with a solvolyzing agent a compound of the formula Z--C(CH3) (OH)--CH2 --W or Z--CX(CH3)--CH2 --Y wherein W is a functionally modified carboxy or methylol group different from Y and X is Cl, Br or I or a functionally modified hydroxyl group; or (b) reducing a compound otherwise corresponding to a desired final product but having instead of one of the hydrogen atoms a group which can be reduced or replaced by a hydrogen atom; or (c) oxidizing a compound otherwise corresponding to a desired final product but lacking the tertiary hydroxyl group; or (d) converting a compound otherwise corresponding to a desired final product wherein Z is a 4-phenoxyphenyl group but having instead a 4--OH--, Cl--, Br-- or I-substituted phenyl group into a desired final product; or (e) diazotizing a compound otherwise corresponding to a desired final product wherein Z is a halogen-substituted 4-phenoxyphenyl group but having an --NH2 -substituted phenoxy group and reacting the resulting diazonium salt with a halogenating agent.