3970-13-6Relevant articles and documents
Synthesis of polydentate ligands containing amides and thiols for biomimetic metal complexes
Heinrich,Chottard,Li
, p. 1323 - 1333 (2007/10/03)
Three pentadentate "N2S3" and one tetradentate "N2S2" new ligands with "N" = CONH and "S" = SH have been synthesized. The key step is the direct diamide formation from the malonyl diester and the amines in the p
SYNTHESIS AND CONFIGURATIONAL STUDIES OF ARYL CYCLOPROPYL SULFONES
Reddy, D. Bhaskar,Balaji, T.,Reddy, B. Venkataramana
, p. 297 - 306 (2007/10/02)
The cycloaddition of arylthiocarbenes to styrene gave stereospecifically cis-1-(arylthio)-2-phenylcyclopropanes, which were subsequently oxidized to the corresponding sulfones.The cyclopropanation of α,β-unsaturated sulfones with dimethylsulfonium methylide yielded stereoselectively trans-1-(arylsulfonyl)-2-arylcyclopropanes.The configurational assignments of these compounds have been arrived at on the basis of IR and PMR spectral data.Chemical shifts for ring protons and other substituents reveal that all the substituents tend to cause protons cis to them to appear at higher fields than those trans to them.This has been used as a criterion to distinguish between cis and trans aryl cyclopropyl sulfones.