15568-87-3Relevant articles and documents
Synthesis of Densely Functionalized N-Alkenyl 2-Pyridones via Benzyne-Induced Ring Opening of Thiazolino-Fused 2-Pyridones
Singh, Pardeep,Cairns, Andrew G.,Adolfsson, Dan E.,?dén, J?rgen,Sauer, Uwe H.,Almqvist, Fredrik
, p. 6946 - 6950 (2019)
We report the synthesis of 6-arylthio-substituted-N-alkenyl 2-pyridones by ring opening of bicyclic thiazolino-2-pyridones with arynes. Varied functionalization was used to investigate scope and substituent influences on reactivity. Selected conditions favor thioether ring opening over [4 + 2] cycloaddition and an unusual aryne incorporating ring expansion. Deuterium labeling was used to clarify observed reactivity. Using the knowledge, we produced drug-like molecules with complex substitution patterns and show how thioether ring opening can be used on scaffolds with competing reactivities.
FLUOROMALONYL HALFTHIOESTERS
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Page/Page column 20, (2016/06/06)
The present invention relates to Fluoromalonyl Halfthioesters (F-MAHTs) of formula (I), wherein R1 represents hydrogen, halogen, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl g
Synthetic routes to pyrrolizine-1,5-dione derivatives by flash vacuum pyrolysis of amidomethylene derivatives of Meldrum's acid
McNab, Hamish,Morrow, Mark,Parsons, Simon,Shannon, David A.,Withell, Kirsti
supporting information; experimental part, p. 4936 - 4942 (2010/02/16)
Methoxymethylene Meldrum's acid 1 reacts with 5- and 6-membered lactams in refluxing acetonitrile to give the N-substituted products 9-15. If the reactions are continued for extended times, the Meldrum's acid derivatives decompose to provide enamidoesters