42873-19-8Relevant academic research and scientific papers
STEREOCHEMICAL SPECIFICITY OF THE PALLADIUM-CATALYZED HYDROGENATION OF CYCLOHEXATHIOPYRANS AND THEIR DERIVATIVES
Klimenko, S. K.,Tyrina, T. I.,Sorokin, N. N.
, p. 506 - 512 (2007/10/02)
Conformationally and configurationally homogenous 2α-R1-4α-R2-cis-1-thiadecalins with an equatorial orientation of the substituents attached to the C(2) and C(4) atoms were isolated as the final reduction produc
NEW DATA ON THE REACTION OF 1,3-DIARYL-3-(2-OXOCYCLOHEXYL)-1-PROPANONES WITH HYDROGEN SULFIDE AND METHANOL
Klimenko, S. K.,Tyrina, T. I.,Stolbova, T. V.,Sorokin, N. N.,Kharchenko, V. G.
, p. 992 - 998 (2007/10/02)
The stereochemical aspects of the reaction of 1-aryl- and 1,3-diaryl-substituted 3-(2-oxocyclohexyl)-1-propanones with hydrogen sulfide and methanol have been discussed.A mechanism is proposed for the formation of trans, trans-1-methoxy-3,5-diaryl-2-thia(oxa)bicyclo-dec-3-enes.
CONFIGURATIONALLY AND CONFORMATIONALLY HOMOGENEOUS ARYL-cis-1-THIADECALINS
Klimenko, S. K.,Stolbova, T. V.,Tyrina, T. I.,Sorokin, N. N.,Leshcheva, I. F.,et al.
, p. 728 - 733 (2007/10/02)
The structure of aryl-substituted cis-1-thiadecalins formed together with 5,6-tetramethylenethiopyrylium salts in disproportionation reactions of condensed 4H-, 6H-thiopyrans and dihydrothiopyrans with CF3COOH, as well as in the ionic reduction of the latter by the ion pair trifluoroacetic acid-triethylsilane, was studied.It was shown that the reduction proceeds stereospecifically with the formation of configurationally and conformationally homogeneous aryl-cis-1-thiadecalins possessing 2α-R1- and 2α-R1-4α-R2-configurations.The configurational and conformational assignments were made by the 13C NMR method.
CATALYTIC REDUCTION OF THIOPYRYLIUM SALTS AND THEIR CONDENSED ANALOGS
Kharchenko, V. G.,Bozhenova, O. A.,Shebaldova, A. D.
, p. 2158 - 2162 (2007/10/02)
A method was developed for the synthesis of substituted thiacyclohexanes, thiadecalins, and perhydrothioxanthenes by reduction of thiopyrylium salts and their condensed analogs under the conditions of catalytic hydrogenation in the presence of catalysts b
REACTIONS OF "SEMICYCLIC" 1,5-DIKETONES WITH HYDROGEN SULFIDE AND TRIFLUOROACETIC ACID
Stolbova, T. V.,Klimenko, S. K.,Kharchenko, V. G.
, p. 170 - 173 (2007/10/02)
The reactions of known and new "semicyclic" 1,5-diketones with hydrogen sulfide and with trifluoroacetic acid were studied.It was shown that under the investigated conditions both 1-aryl- and 1,3-diaryl-substituted diketones form 3R-5R-2-thiabicycloalkane
