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2004
Hydroxycarboxylic acids (ether carboxylic acids) and esters
Q 0450
Highly Diastereoselective Reductive Coupling of 2-Bromo-2,3,3,3-tetrafluorowith Aldehydes Promoted by Triphenylphosphine—Titanium(IV)
47- 081 propanamide
Isopropoxide. An Efficient Route to the Synthesis of erythro-α-Fluoro-α-(trifluoromethyl)-β-hydroxy Amides. — The efficiency of the title reaction is dependent on
the nature and amount of Lewis acid and phosphine as well as on the nature of substrate.
Best results are obtained with Weinreb amide (I) using 1.2 equivalents each of
Ti(O-iPr)4 and PPh3. — (SATO, K.; SEKIGUCHI, T.; ISHIHARA*, T.; KONNO, T.;
YAMANAKA, H.; J. Org. Chem. 69 (2004) 15, 5041-5047; Dep. Chem. Mater.
Technol., Kyoto Inst. Technol., Sakyo, Kyoto 606, Japan; Eng.) — Jannicke
2004
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