title: Automated Synthesis of Monodisperse Oligomers, Featuring Sequence Control and Tailored Functionalization.
abstract: Long, multifunctional sequence-defined oligomers were obtained on solid support from a protecting-group-free two-step iterative protocol, based on the inherent reactivity of a readily available molecule containing an isocyanate and a thiolactone. Aminolysis of the latter entity with an amino alcohol liberates a thiol that reacts with an acrylate or acrylamide, present in the same medium. Subsequently, a new thiolactone can be reinstated by means of an α-isocyanato-γ-thiolactone. Different acrylic compounds were used to incorporate diverse functionalities in the oligomers, which were built up to the level of decamers. The reaction conditions were closely monitored in order to fine-tune the applied strategy as well as facilitate the translation to an automated protocol.
authors.affiliation: Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, 9000 Ghent, Belgium.
authors.forename: Steven
authors.initials: S
authors.lastname: Martens
authors.affiliation: Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, 9000 Ghent, Belgium.
authors.forename: Jos
authors.initials: J
authors.lastname: Van den Begin
authors.affiliation: Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, 9000 Ghent, Belgium.
authors.forename: Annemieke
authors.initials: A
authors.lastname: Madder
authors.affiliation: Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, 9000 Ghent, Belgium.
authors.forename: Filip E
authors.initials: FE
authors.lastname: Du Prez
authors.affiliation: Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, 9000 Ghent, Belgium.
authors.forename: Pieter
authors.initials: P
authors.lastname: Espeel