title: C2-symmetric bissulfoxides as organocatalysts in the allylation of benzoyl hydrazones: spacer and concentration effects.
abstract: A comparative study on the allylation of a benzoyl hydrazone with allyl trichlorosilane using monosulfoxides, methylene-bridged C2-symmetric bissulfoxides, and ethylene-bridged C2-symmetric bissulfoxides shows that the enantioselectivity of the process is highly dependent on the spacer between the two sulfinyl sulfurs and the concentration of the reaction.
authors.affiliation: Departamento de Química OrgAnica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain. inmaff@us.es
authors.forename: Inmaculada
authors.initials: I
authors.lastname: Fernández
authors.forename: Victoria
authors.initials: V
authors.lastname: Valdivia
authors.forename: Manuel Pernía
authors.initials: MP
authors.lastname: Leal
authors.forename: Noureddine
authors.initials: N
authors.lastname: Khiar
mesh_terms: D002384:Catalysis; D006835:Hydrazones / Q000737:chemistry*; D015394:Molecular Structure; D013454:Sulfoxides / Q000737:chemistry*
chemical_list: D006835:Hydrazones; D013454:Sulfoxides