Transformations of (R)-4-Menthen-3-one and Its Derivatives with the Participation of Hydride-, Nitrogenand Sulphur-Containing Reagents
E. R. LATYPOVA1, R. F. TALIPOV1, V. S. TUKHVATSHIN1, M. P. YAKOVLEVA2, G. YU. ISHMURATOV2
1Bashkiria State University, Ufa, Russia 2Ufa Institute of Chemistry RAS, Ufa, Russia
Keywords: (R)-4-menthen-3-one, hydride, sulphur- and nitrogen-containing reagents, transformations
Pages: 275-286
Abstract
Reactivity data of (R)-4-menthen-3-one and routes of its transformations with the participation of hydride, sulphur and nitrogen-containing reactants were generalized and systematized. An opportunity to prepare a range of new potentially pharmacologically active sulphides, sulphoxides, acetamides and an oxime of the menthane series based on (R)-4-menthen-3-one and its derivatives was demonstrated using the Ritter reaction, nucleophilic and electrophilic thiating, nitrosation, oximation. Resulting from the carried out systematic research of reactions of (R)-4-menthen-3-one and its derivatives with aluminium- and boron-containing hydride reagents, it was detected that i-Bu2AlH was the most stereospecific hydride reducing agent for (R)-4-menthen-3-one to (1R,3R)-n-menth-4-en-3-ol. It was found that the BH3 x THF complex was a stereospecific hydride agent for the oxo group of (R)-4-menthen-3-one and regiospecific but a low-stereoselective hydroborating reagent for its multiple bond and that of (1R,3R)-n-menth-4-en-3-ol.
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