Ruthenium-Catalyzed<i>O</i>- to<i>S</i>-Alkyl Migration: A Pseudoreversible Barton-McCombie Pathway
作者:William Mahy、Pawel Plucinski、Jesús Jover、Christopher G. Frost
DOI:10.1002/anie.201505280
日期:2015.9.7
A practical ruthenium‐catalyzed O‐ to S‐alkyl migration affords structurally diverse thiooxazolidinones in excellent yields. Our studies suggest this catalytic transformation proceeds through a pseudoreversible radical pathway drawing mechanistic parallels to the classic Barton–McCombie reaction.
A Highly Regioselective Palladium-Catalyzed O,S Rearrangement of Cyclic Thiocarbonates
作者:William Mahy、Sinéad Cabezas-Hayes、Gabriele Kociok-Köhn、Christopher G. Frost
DOI:10.1002/ejoc.201701181
日期:2017.11.24
This work describes an operationally simple catalytic synthesis of cyclic S-thiocarbonates with predictable regioselectivity in good yields. The reaction utilizes substrates derived from ubiquitous 1,2-diols in an atom economical intramolecular rearrangement, catalysed by an inexpensive and simple catalyst–ligand system. A crystal structure is presented that clearly confirms the regioselectivity of