206278-57-1Relevant articles and documents
Enantioselective synthesis of α-hydroxy thioesters via oxazaborolidine- mediated reduction of α-phenylthio enones
Berenguer, Ramon,Cavero, Marta,Garcia, Jordi,Munoz, Montse
, p. 2183 - 2186 (2007/10/03)
α-Phenylthio-α,β-alkenones (2), readily available by Pd(II)-catalysed coupling of (E)-1 phenylthio-1-tributylstannylhex-1-ene with the corresponding acid chlorides have been treated with borane in the presence of phenylglycine- or proline-derived oxazaborolidines to afford 2-phenylthio-2- alken-1-ols (3) with good to excellent enantioselectivities. Ozonolysis of 3 provides a new and efficient route to chiral α-hydroxy thioesters 4.