Alkyl Halide-Free Heteroatom Alkylation and Epoxidation Facilitated by a Recyclable Polymer-Supported Oxidant for the In-Flow Preparation of Diazo Compounds
作者:Simon M. Nicolle、Christopher J. Hayes、Christopher J. Moody
DOI:10.1002/chem.201500118
日期:2015.3.16
simple ketones via diazocompounds, including diazo‐amides and ‐phosphonates, using a recyclable reagent in‐flow, are transient but versatile electrophiles for heteroatomalkylation reactions and for epoxide formation. The method produces no organic waste, with the only by‐products being water, KI and nitrogen, without the attendant hazards of isolation of intermediate diazocompounds.
Potassium<i>N</i>-Iodo<i>p</i>-Toluenesulfonamide (TsNIK, Iodamine-T): A New Reagent for the Oxidation of Hydrazones to Diazo Compounds
作者:Simon M. Nicolle、Christopher J. Moody
DOI:10.1002/chem.201304656
日期:2014.4.7
A new reagent for the oxidation of hydrazones to diazo compounds is described. N‐Iodo p‐toluenesulfonamide (TsNIK, iodamine‐T) allows the preparation of α‐diazoesters, α‐diazoamides, α‐diazoketones and α‐diazophosphonates in good yield and in high purity after a simple extractive work‐up. α‐Diazoesters were also obtained in high yield from the corresponding ketones through a one‐pot process of hydrazone