21083-19-2Relevant academic research and scientific papers
Downfield chemical shifts at α-protons and carbons of β-propiothiolactones
Lee, Hee Bong,Park, Hyung-Yeon,Lee, Bon-Su,Kim, Young Gyu
, p. 468 - 471 (2007/10/03)
Both the α-protons and carbons of β-propiothiolactones exhibit atypical downfield chemical shifts. The α-protons of β-propiothiolactones with no heteroatom at the α-position appear at 3.53-5.35ppm, whereas the α-carbons appear at 56.9-86.2 ppm. The major cause of the unexpected deshielding effect was rationalized by assuming a through-space interaction between the occupied orbital of the α-carbon and the vacant orbital of sulfur. Copyright
RING OPENING REACTIONS OF THIIRANES WITH GROUP IV B ORGANOMETALLICS: A NEW REGIOSELECTIVE ROUTE TO β-AMINO AND β-CYANIDE THIOLS.
Taddei, Maurizio,Papini, Annamaria,Fiorenza, Mariella,Ricci, Alfredo,Seconi, Giancarlo
, p. 2311 - 2314 (2007/10/02)
Regioselective opening of the thiirane ring occurs spontaneously with Group IV B organometallics such as Me3SnNR2 and under the catalytic action of AlCl3 with Me3SiCN, affording difunctional thiols.
