in a stereoselective manner. The reaction proceeds through generation of an α‐imino rhodium carbene complex, nucleophilic addition of the sulfur atom of a thioester onto the carbenoid carbonatom, and subsequent intramolecular migration of the acyl groupfrom the sulfur atom to the imino nitrogen atom. The method is successfully applied to a ring‐expansion reaction of thiolactones, thus leading to
Synthesis of thiolactone building blocks as potential precursors for sustainable functional materials
作者:Daniel Frank、Pieter Espeel、Sven Claessens、Edwin Mes、Filip E. Du Prez
DOI:10.1016/j.tet.2016.08.076
日期:2016.10
to multi-gram amounts of the targeted compounds and enabling up-scaling experiments for promising compounds in the area of functional coatings. Aspects considered during selection of targets and synthesis pathways included functional diversity, expected physical properties, sustainability and commercial availability of reagents, as well as feasibility to achieve an industrially relevant process. Trends
Homocysteine thiolactone derivatives, process for the preparation
申请人:Chiesi Farmaceutici S.p.A.
公开号:US04690944A1
公开(公告)日:1987-09-01
Compounds of formula I ##STR1## wherein A represents: a saturated cyclic or heterocyclic aromatic or heteroaromatic residue; a saturated or unsaturated bicyclic residue; and R represents H, an alkyl, cycloalkyl or alkoxyalkyl group. Compounds I are endowed with valuable therapeutic characteristics.
Three-Component Sequential Reactions for Polymeric Nanoparticles with Tailorable Core and Surface Functionalities
作者:Bin Liu、S. Thayumanavan
DOI:10.1016/j.chempr.2019.09.001
日期:2019.12
with tailorable functionalities have implications in enhancing the repertoire of nanomaterials in many applications. Multi-component reactions (MCRs) are very attractive because they are synthetically simple while providing unique access to incorporation of functional groups onto a system. This highly efficient process has not been brought to bear in the preparation of functionalpolymeric nanostructures
Automated Synthesis of Monodisperse Oligomers, Featuring Sequence Control and Tailored Functionalization
作者:Steven Martens、Jos Van den Begin、Annemieke Madder、Filip E. Du Prez、Pieter Espeel
DOI:10.1021/jacs.6b07120
日期:2016.11.2
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.