Metal-Free C–C Coupling of an Allenyl Sulfone with Picolyl Amides to Access Vinyl Sulfones via Pyridine-Initiated In Situ Generation of Sulfinate Anion
作者:Humair M. Omer、Peng Liu、Kay M. Brummond
DOI:10.1021/acs.joc.0c00788
日期:2020.6.19
Vinyl sulfones are privileged motifs known for their biological activity and synthetic utility. Synthetic transformations to efficiently access high-value compounds with these motifs are desired and sought after. Herein, a new procedure is described to form vinyl sulfone-containing compounds by selective functionalization of the C(sp3)–H bond adjacent to the pyridine ring of pharmacologically prevalent
A general synthesis of allenic sulfones from acetylenes using selenosulfonation
作者:Thomas G Back、M.Vijaya Krishna、K.Raman Muralidharan
DOI:10.1016/s0040-4039(00)95408-x
日期:1987.1
Terminal acetylenes were converted to 1- and 3-substituted allenic sulfones via selenosulfonation, deprotonation, alkylation and selenoxide elimination.
通过硒代磺化,去质子化,烷基化和亚硒酸酯消除,将末端乙炔转化为1-和3-取代的烯丙基砜。
Abnormal Behaviour of Allenylsulfones under Lu’s Reaction Conditions: Synthesis of Enantiopure Polyfunctionalised Cyclopentenes
作者:Alberto Núñez、M. Rosario Martín、Alberto Fraile、José L. García Ruano
DOI:10.1002/chem.200903185
日期:2010.5.10
adducts in good yields. Allenylsulfones evolve through a different mechanism to that proposed for allenoates (Lu’sreaction) and afford bicyclic adducts in which the sulfonyl group is joined to C‐5. This has advantages on the stereochemical control of further reactions leading to enantiomerically pure polyfunctionalisedcyclopentenes and cyclopentanes.